diff --git a/src/main/kotlin/dev/usbharu/hideout/config/Config.kt b/src/main/kotlin/dev/usbharu/hideout/config/Config.kt
deleted file mode 100644
index 1623ff25..00000000
--- a/src/main/kotlin/dev/usbharu/hideout/config/Config.kt
+++ /dev/null
@@ -1,64 +0,0 @@
-package dev.usbharu.hideout.config
-
-import com.fasterxml.jackson.databind.ObjectMapper
-import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
-
-@Deprecated("Config is deprecated")
-object Config {
-    var configData: ConfigData = ConfigData()
-}
-
-@Deprecated("Config is deprecated")
-data class ConfigData(
-    val url: String = "",
-    val domain: String = url.substringAfter("://").substringBeforeLast(":"),
-    val objectMapper: ObjectMapper = jacksonObjectMapper(),
-    val characterLimit: CharacterLimit = CharacterLimit()
-)
-
-@Deprecated("Config is deprecated")
-data class CharacterLimit(
-    val general: General = General.of(),
-    val post: Post = Post(),
-    val account: Account = Account(),
-    val instance: Instance = Instance()
-) {
-    @Deprecated("Config is deprecated")
-    data class General private constructor(
-        val url: Int,
-        val domain: Int,
-        val publicKey: Int,
-        val privateKey: Int
-    ) {
-        companion object {
-            @Suppress("FunctionMinLength")
-            fun of(url: Int? = null, domain: Int? = null, publicKey: Int? = null, privateKey: Int? = null): General {
-                return General(
-                    url ?: 1000,
-                    domain ?: 1000,
-                    publicKey ?: 10000,
-                    privateKey ?: 10000
-                )
-            }
-        }
-    }
-
-    @Deprecated("Config is deprecated")
-    data class Post(
-        val text: Int = 3000,
-        val overview: Int = 3000
-    )
-
-    @Deprecated("Config is deprecated")
-    data class Account(
-        val id: Int = 300,
-        val name: Int = 300,
-        val description: Int = 10000
-    )
-
-    @Deprecated("Config is deprecated")
-    data class Instance(
-        val name: Int = 600,
-        val description: Int = 10000
-    )
-}
diff --git a/src/main/kotlin/dev/usbharu/hideout/config/SpringConfig.kt b/src/main/kotlin/dev/usbharu/hideout/config/SpringConfig.kt
index 18ee3845..a7932b53 100644
--- a/src/main/kotlin/dev/usbharu/hideout/config/SpringConfig.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/config/SpringConfig.kt
@@ -43,3 +43,35 @@ data class StorageConfig(
     val accessKey: String,
     val secretKey: String
 )
+
+@ConfigurationProperties("hideout.character-limit")
+data class CharacterLimit(
+    val general: General = General(),
+    val post: Post = Post(),
+    val account: Account = Account(),
+    val instance: Instance = Instance()
+) {
+
+    data class General(
+        val url: Int = 1000,
+        val domain: Int = 1000,
+        val publicKey: Int = 10000,
+        val privateKey: Int = 10000
+    )
+
+    data class Post(
+        val text: Int = 3000,
+        val overview: Int = 3000
+    )
+
+    data class Account(
+        val id: Int = 300,
+        val name: Int = 300,
+        val description: Int = 10000
+    )
+
+    data class Instance(
+        val name: Int = 600,
+        val description: Int = 10000
+    )
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Post.kt b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Post.kt
index afe45261..7bffa75e 100644
--- a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Post.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Post.kt
@@ -1,6 +1,7 @@
 package dev.usbharu.hideout.domain.model.hideout.entity
 
-import dev.usbharu.hideout.config.Config
+import dev.usbharu.hideout.config.CharacterLimit
+import org.springframework.stereotype.Component
 
 data class Post private constructor(
     val id: Long,
@@ -16,7 +17,9 @@ data class Post private constructor(
     val apId: String = url,
     val mediaIds: List<Long> = emptyList()
 ) {
-    companion object {
+
+    @Component
+    class PostBuilder(private val characterLimit: CharacterLimit) {
         @Suppress("FunctionMinLength", "LongParameterList")
         fun of(
             id: Long,
@@ -32,8 +35,6 @@ data class Post private constructor(
             apId: String = url,
             mediaIds: List<Long> = emptyList()
         ): Post {
-            val characterLimit = Config.configData.characterLimit
-
             require(id >= 0) { "id must be greater than or equal to 0." }
 
             require(userId >= 0) { "userId must be greater than or equal to 0." }
diff --git a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/User.kt b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/User.kt
index d79d617b..302a3c1e 100644
--- a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/User.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/User.kt
@@ -1,7 +1,9 @@
 package dev.usbharu.hideout.domain.model.hideout.entity
 
-import dev.usbharu.hideout.config.Config
+import dev.usbharu.hideout.config.ApplicationConfig
+import dev.usbharu.hideout.config.CharacterLimit
 import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Component
 import java.time.Instant
 
 data class User private constructor(
@@ -27,9 +29,9 @@ data class User private constructor(
                 " privateKey=$privateKey, createdAt=$createdAt, keyId='$keyId', followers=$followers," +
                 " following=$following)"
 
-    companion object {
-
-        private val logger = LoggerFactory.getLogger(User::class.java)
+    @Component
+    class UserBuilder(private val characterLimit: CharacterLimit, private val applicationConfig: ApplicationConfig) {
+        private val logger = LoggerFactory.getLogger(UserBuilder::class.java)
 
         @Suppress("LongParameterList", "FunctionMinLength", "LongMethod")
         fun of(
@@ -49,8 +51,6 @@ data class User private constructor(
             following: String? = null,
             followers: String? = null
         ): User {
-            val characterLimit = Config.configData.characterLimit
-
             // idは0未満ではいけない
             require(id >= 0) { "id must be greater than or equal to 0." }
 
@@ -93,7 +93,7 @@ data class User private constructor(
             }
 
             // ローカルユーザーはpasswordとprivateKeyをnullにしてはいけない
-            if (domain == Config.configData.domain) {
+            if (domain == applicationConfig.url.host) {
                 requireNotNull(password) { "password and privateKey must not be null for local users." }
                 requireNotNull(privateKey) { "password and privateKey must not be null for local users." }
             }
diff --git a/src/main/kotlin/dev/usbharu/hideout/query/FollowerQueryServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/query/FollowerQueryServiceImpl.kt
index 10be4068..75d27e7b 100644
--- a/src/main/kotlin/dev/usbharu/hideout/query/FollowerQueryServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/query/FollowerQueryServiceImpl.kt
@@ -9,7 +9,7 @@ import org.springframework.stereotype.Repository
 import java.time.Instant
 
 @Repository
-class FollowerQueryServiceImpl : FollowerQueryService {
+class FollowerQueryServiceImpl(private val userBuilder: User.UserBuilder) : FollowerQueryService {
     override suspend fun findFollowersById(id: Long): List<User> {
         val followers = Users.alias("FOLLOWERS")
         return Users.innerJoin(
@@ -41,7 +41,7 @@ class FollowerQueryServiceImpl : FollowerQueryService {
             )
             .select { Users.id eq id }
             .map {
-                User.of(
+                userBuilder.of(
                     id = it[followers[Users.id]],
                     name = it[followers[Users.name]],
                     domain = it[followers[Users.domain]],
@@ -92,7 +92,7 @@ class FollowerQueryServiceImpl : FollowerQueryService {
             )
             .select { Users.name eq name and (Users.domain eq domain) }
             .map {
-                User.of(
+                userBuilder.of(
                     id = it[followers[Users.id]],
                     name = it[followers[Users.name]],
                     domain = it[followers[Users.domain]],
@@ -143,7 +143,7 @@ class FollowerQueryServiceImpl : FollowerQueryService {
             )
             .select { followers[Users.id] eq id }
             .map {
-                User.of(
+                userBuilder.of(
                     id = it[followers[Users.id]],
                     name = it[followers[Users.name]],
                     domain = it[followers[Users.domain]],
@@ -194,7 +194,7 @@ class FollowerQueryServiceImpl : FollowerQueryService {
             )
             .select { followers[Users.name] eq name and (followers[Users.domain] eq domain) }
             .map {
-                User.of(
+                userBuilder.of(
                     id = it[followers[Users.id]],
                     name = it[followers[Users.name]],
                     domain = it[followers[Users.domain]],
diff --git a/src/main/kotlin/dev/usbharu/hideout/query/PostQueryServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/query/PostQueryServiceImpl.kt
index dc3d3d9a..c6708dae 100644
--- a/src/main/kotlin/dev/usbharu/hideout/query/PostQueryServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/query/PostQueryServiceImpl.kt
@@ -4,27 +4,32 @@ import dev.usbharu.hideout.domain.model.hideout.entity.Post
 import dev.usbharu.hideout.exception.FailedToGetResourcesException
 import dev.usbharu.hideout.repository.Posts
 import dev.usbharu.hideout.repository.PostsMedia
-import dev.usbharu.hideout.repository.toPost
+import dev.usbharu.hideout.repository.QueryMapper
+import dev.usbharu.hideout.repository.ResultRowMapper
 import dev.usbharu.hideout.util.singleOr
 import org.jetbrains.exposed.sql.select
 import org.springframework.stereotype.Repository
 
 @Repository
-class PostQueryServiceImpl : PostQueryService {
+class PostQueryServiceImpl(
+    private val postResultRowMapper: ResultRowMapper<Post>,
+    private val postQueryMapper: QueryMapper<Post>
+) : PostQueryService {
     override suspend fun findById(id: Long): Post =
         Posts.leftJoin(PostsMedia)
             .select { Posts.id eq id }
-            .singleOr { FailedToGetResourcesException("id: $id is duplicate or does not exist.", it) }.toPost()
+            .singleOr { FailedToGetResourcesException("id: $id is duplicate or does not exist.", it) }
+            .let(postResultRowMapper::map)
 
     override suspend fun findByUrl(url: String): Post =
         Posts.leftJoin(PostsMedia)
             .select { Posts.url eq url }
-            .toPost()
+            .let(postQueryMapper::map)
             .singleOr { FailedToGetResourcesException("url: $url is duplicate or does not exist.", it) }
 
     override suspend fun findByApId(string: String): Post =
         Posts.leftJoin(PostsMedia)
             .select { Posts.apId eq string }
-            .toPost()
+            .let(postQueryMapper::map)
             .singleOr { FailedToGetResourcesException("apId: $string is duplicate or does not exist.", it) }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt
index 351a8303..3db693e1 100644
--- a/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt
@@ -2,8 +2,9 @@ package dev.usbharu.hideout.query
 
 import dev.usbharu.hideout.domain.model.hideout.entity.User
 import dev.usbharu.hideout.exception.FailedToGetResourcesException
+import dev.usbharu.hideout.repository.QueryMapper
+import dev.usbharu.hideout.repository.ResultRowMapper
 import dev.usbharu.hideout.repository.Users
-import dev.usbharu.hideout.repository.toUser
 import dev.usbharu.hideout.util.singleOr
 import org.jetbrains.exposed.sql.and
 import org.jetbrains.exposed.sql.select
@@ -12,17 +13,22 @@ import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Repository
 
 @Repository
-class UserQueryServiceImpl : UserQueryService {
+class UserQueryServiceImpl(
+    private val userResultRowMapper: ResultRowMapper<User>,
+    private val userQueryMapper: QueryMapper<User>
+) : UserQueryService {
 
     private val logger = LoggerFactory.getLogger(UserQueryServiceImpl::class.java)
 
     override suspend fun findAll(limit: Int, offset: Long): List<User> =
-        Users.selectAll().limit(limit, offset).map { it.toUser() }
+        Users.selectAll().limit(limit, offset).let(userQueryMapper::map)
 
     override suspend fun findById(id: Long): User = Users.select { Users.id eq id }
-        .singleOr { FailedToGetResourcesException("id: $id is duplicate or does not exist.", it) }.toUser()
+        .singleOr { FailedToGetResourcesException("id: $id is duplicate or does not exist.", it) }
+        .let(userResultRowMapper::map)
 
-    override suspend fun findByName(name: String): List<User> = Users.select { Users.name eq name }.map { it.toUser() }
+    override suspend fun findByName(name: String): List<User> =
+        Users.select { Users.name eq name }.let(userQueryMapper::map)
 
     override suspend fun findByNameAndDomain(name: String, domain: String): User =
         Users
@@ -30,17 +36,17 @@ class UserQueryServiceImpl : UserQueryService {
             .singleOr {
                 FailedToGetResourcesException("name: $name,domain: $domain  is duplicate or does not exist.", it)
             }
-            .toUser()
+            .let(userResultRowMapper::map)
 
     override suspend fun findByUrl(url: String): User {
         logger.trace("findByUrl url: $url")
         return Users.select { Users.url eq url }
             .singleOr { FailedToGetResourcesException("url: $url  is duplicate or does not exist.", it) }
-            .toUser()
+            .let(userResultRowMapper::map)
     }
 
     override suspend fun findByIds(ids: List<Long>): List<User> =
-        Users.select { Users.id inList ids }.map { it.toUser() }
+        Users.select { Users.id inList ids }.let(userQueryMapper::map)
 
     override suspend fun existByNameAndDomain(name: String, domain: String): Boolean =
         Users.select { Users.name eq name and (Users.domain eq domain) }.empty().not()
@@ -48,6 +54,6 @@ class UserQueryServiceImpl : UserQueryService {
     override suspend fun findByKeyId(keyId: String): User {
         return Users.select { Users.keyId eq keyId }
             .singleOr { FailedToGetResourcesException("keyId: $keyId  is duplicate or does not exist.", it) }
-            .toUser()
+            .let(userResultRowMapper::map)
     }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/query/activitypub/NoteQueryServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/query/activitypub/NoteQueryServiceImpl.kt
index b6affcbb..55746226 100644
--- a/src/main/kotlin/dev/usbharu/hideout/query/activitypub/NoteQueryServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/query/activitypub/NoteQueryServiceImpl.kt
@@ -13,14 +13,15 @@ import org.springframework.stereotype.Repository
 import java.time.Instant
 
 @Repository
-class NoteQueryServiceImpl(private val postRepository: PostRepository) : NoteQueryService {
+class NoteQueryServiceImpl(private val postRepository: PostRepository, private val postQueryMapper: QueryMapper<Post>) :
+    NoteQueryService {
     override suspend fun findById(id: Long): Pair<Note, Post> {
         return Posts
             .leftJoin(Users)
             .leftJoin(PostsMedia)
             .leftJoin(Media)
             .select { Posts.id eq id }
-            .let { it.toNote() to it.toPost().first() }
+            .let { it.toNote() to postQueryMapper.map(it).first() }
     }
 
     private suspend fun ResultRow.toNote(mediaList: List<dev.usbharu.hideout.domain.model.hideout.entity.Media>): Note {
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/PostQueryMapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/PostQueryMapper.kt
new file mode 100644
index 00000000..f71d5492
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/PostQueryMapper.kt
@@ -0,0 +1,17 @@
+package dev.usbharu.hideout.repository
+
+import dev.usbharu.hideout.domain.model.hideout.entity.Post
+import org.jetbrains.exposed.sql.Query
+import org.springframework.stereotype.Component
+
+@Component
+class PostQueryMapper(private val postResultRowMapper: ResultRowMapper<Post>) : QueryMapper<Post> {
+    override fun map(query: Query): List<Post> {
+        return query.groupBy { it[Posts.id] }
+            .map { it.value }
+            .map {
+                it.first().let(postResultRowMapper::map)
+                    .copy(mediaIds = it.mapNotNull { it.getOrNull(PostsMedia.mediaId) })
+            }
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/PostRepositoryImpl.kt b/src/main/kotlin/dev/usbharu/hideout/repository/PostRepositoryImpl.kt
index 9100422a..d0a8ee96 100644
--- a/src/main/kotlin/dev/usbharu/hideout/repository/PostRepositoryImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/PostRepositoryImpl.kt
@@ -1,7 +1,6 @@
 package dev.usbharu.hideout.repository
 
 import dev.usbharu.hideout.domain.model.hideout.entity.Post
-import dev.usbharu.hideout.domain.model.hideout.entity.Visibility
 import dev.usbharu.hideout.exception.FailedToGetResourcesException
 import dev.usbharu.hideout.service.core.IdGenerateService
 import org.jetbrains.exposed.sql.*
@@ -9,7 +8,10 @@ import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
 import org.springframework.stereotype.Repository
 
 @Repository
-class PostRepositoryImpl(private val idGenerateService: IdGenerateService) : PostRepository {
+class PostRepositoryImpl(
+    private val idGenerateService: IdGenerateService,
+    private val postQueryMapper: QueryMapper<Post>
+) : PostRepository {
 
     override suspend fun generateId(): Long = idGenerateService.generateId()
 
@@ -65,7 +67,7 @@ class PostRepositoryImpl(private val idGenerateService: IdGenerateService) : Pos
     override suspend fun findById(id: Long): Post =
         Posts.innerJoin(PostsMedia, onColumn = { Posts.id }, otherColumn = { PostsMedia.postId })
             .select { Posts.id eq id }
-            .toPost()
+            .let(postQueryMapper::map)
             .singleOrNull()
             ?: throw FailedToGetResourcesException("id: $id was not found.")
 
@@ -94,25 +96,3 @@ object PostsMedia : Table() {
     val mediaId = long("media_id").references(Media.id, ReferenceOption.CASCADE, ReferenceOption.CASCADE)
     override val primaryKey = PrimaryKey(postId, mediaId)
 }
-
-fun ResultRow.toPost(): Post {
-    return Post.of(
-        id = this[Posts.id],
-        userId = this[Posts.userId],
-        overview = this[Posts.overview],
-        text = this[Posts.text],
-        createdAt = this[Posts.createdAt],
-        visibility = Visibility.values().first { visibility -> visibility.ordinal == this[Posts.visibility] },
-        url = this[Posts.url],
-        repostId = this[Posts.repostId],
-        replyId = this[Posts.replyId],
-        sensitive = this[Posts.sensitive],
-        apId = this[Posts.apId],
-    )
-}
-
-fun Query.toPost(): List<Post> {
-    return this.groupBy { it[Posts.id] }
-        .map { it.value }
-        .map { it.first().toPost().copy(mediaIds = it.mapNotNull { it.getOrNull(PostsMedia.mediaId) }) }
-}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/PostResultRowMapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/PostResultRowMapper.kt
new file mode 100644
index 00000000..7949e401
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/PostResultRowMapper.kt
@@ -0,0 +1,25 @@
+package dev.usbharu.hideout.repository
+
+import dev.usbharu.hideout.domain.model.hideout.entity.Post
+import dev.usbharu.hideout.domain.model.hideout.entity.Visibility
+import org.jetbrains.exposed.sql.ResultRow
+import org.springframework.stereotype.Component
+
+@Component
+class PostResultRowMapper(private val postBuilder: Post.PostBuilder) : ResultRowMapper<Post> {
+    override fun map(resultRow: ResultRow): Post {
+        return postBuilder.of(
+            id = resultRow[Posts.id],
+            userId = resultRow[Posts.userId],
+            overview = resultRow[Posts.overview],
+            text = resultRow[Posts.text],
+            createdAt = resultRow[Posts.createdAt],
+            visibility = Visibility.values().first { visibility -> visibility.ordinal == resultRow[Posts.visibility] },
+            url = resultRow[Posts.url],
+            repostId = resultRow[Posts.repostId],
+            replyId = resultRow[Posts.replyId],
+            sensitive = resultRow[Posts.sensitive],
+            apId = resultRow[Posts.apId],
+        )
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/QueryMapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/QueryMapper.kt
new file mode 100644
index 00000000..b5b5fdad
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/QueryMapper.kt
@@ -0,0 +1,7 @@
+package dev.usbharu.hideout.repository
+
+import org.jetbrains.exposed.sql.Query
+
+interface QueryMapper<T> {
+    fun map(query: Query): List<T>
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/ResultRowMapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/ResultRowMapper.kt
new file mode 100644
index 00000000..e2ea4b3f
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/ResultRowMapper.kt
@@ -0,0 +1,7 @@
+package dev.usbharu.hideout.repository
+
+import org.jetbrains.exposed.sql.ResultRow
+
+interface ResultRowMapper<T> {
+    fun map(resultRow: ResultRow): T
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/UserQueryMapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/UserQueryMapper.kt
new file mode 100644
index 00000000..62828e72
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/UserQueryMapper.kt
@@ -0,0 +1,12 @@
+package dev.usbharu.hideout.repository
+
+import dev.usbharu.hideout.domain.model.hideout.entity.User
+import org.jetbrains.exposed.sql.Query
+import org.springframework.stereotype.Component
+
+@Component
+class UserQueryMapper(private val userResultRowMapper: ResultRowMapper<User>) : QueryMapper<User> {
+    override fun map(query: Query): List<User> {
+        return query.map(userResultRowMapper::map)
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/UserRepositoryImpl.kt b/src/main/kotlin/dev/usbharu/hideout/repository/UserRepositoryImpl.kt
index a6955a5d..0a1a9958 100644
--- a/src/main/kotlin/dev/usbharu/hideout/repository/UserRepositoryImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/UserRepositoryImpl.kt
@@ -1,16 +1,17 @@
 package dev.usbharu.hideout.repository
 
-import dev.usbharu.hideout.config.Config
 import dev.usbharu.hideout.domain.model.hideout.entity.User
 import dev.usbharu.hideout.service.core.IdGenerateService
 import org.jetbrains.exposed.dao.id.LongIdTable
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
 import org.springframework.stereotype.Repository
-import java.time.Instant
 
 @Repository
-class UserRepositoryImpl(private val idGenerateService: IdGenerateService) :
+class UserRepositoryImpl(
+    private val idGenerateService: IdGenerateService,
+    private val userResultRowMapper: ResultRowMapper<User>
+) :
     UserRepository {
 
     override suspend fun save(user: User): User {
@@ -55,9 +56,7 @@ class UserRepositoryImpl(private val idGenerateService: IdGenerateService) :
     }
 
     override suspend fun findById(id: Long): User? {
-        return Users.select { Users.id eq id }.map {
-            it.toUser()
-        }.singleOrNull()
+        return Users.select { Users.id eq id }.singleOrNull()?.let(userResultRowMapper::map)
     }
 
     override suspend fun deleteFollowRequest(id: Long, follower: Long) {
@@ -78,26 +77,26 @@ class UserRepositoryImpl(private val idGenerateService: IdGenerateService) :
 
 object Users : Table("users") {
     val id: Column<Long> = long("id")
-    val name: Column<String> = varchar("name", length = Config.configData.characterLimit.account.id)
-    val domain: Column<String> = varchar("domain", length = Config.configData.characterLimit.general.domain)
-    val screenName: Column<String> = varchar("screen_name", length = Config.configData.characterLimit.account.name)
+    val name: Column<String> = varchar("name", length = 300)
+    val domain: Column<String> = varchar("domain", length = 1000)
+    val screenName: Column<String> = varchar("screen_name", length = 300)
     val description: Column<String> = varchar(
         "description",
-        length = Config.configData.characterLimit.account.description
+        length = 10000
     )
     val password: Column<String?> = varchar("password", length = 255).nullable()
-    val inbox: Column<String> = varchar("inbox", length = Config.configData.characterLimit.general.url).uniqueIndex()
-    val outbox: Column<String> = varchar("outbox", length = Config.configData.characterLimit.general.url).uniqueIndex()
-    val url: Column<String> = varchar("url", length = Config.configData.characterLimit.general.url).uniqueIndex()
-    val publicKey: Column<String> = varchar("public_key", length = Config.configData.characterLimit.general.publicKey)
+    val inbox: Column<String> = varchar("inbox", length = 1000).uniqueIndex()
+    val outbox: Column<String> = varchar("outbox", length = 1000).uniqueIndex()
+    val url: Column<String> = varchar("url", length = 1000).uniqueIndex()
+    val publicKey: Column<String> = varchar("public_key", length = 10000)
     val privateKey: Column<String?> = varchar(
         "private_key",
-        length = Config.configData.characterLimit.general.privateKey
+        length = 10000
     ).nullable()
     val createdAt: Column<Long> = long("created_at")
-    val keyId = varchar("key_id", length = Config.configData.characterLimit.general.url)
-    val following = varchar("following", length = Config.configData.characterLimit.general.url).nullable()
-    val followers = varchar("followers", length = Config.configData.characterLimit.general.url).nullable()
+    val keyId = varchar("key_id", length = 1000)
+    val following = varchar("following", length = 1000).nullable()
+    val followers = varchar("followers", length = 1000).nullable()
 
     override val primaryKey: PrimaryKey = PrimaryKey(id)
 
@@ -106,26 +105,6 @@ object Users : Table("users") {
     }
 }
 
-fun ResultRow.toUser(): User {
-    return User.of(
-        id = this[Users.id],
-        name = this[Users.name],
-        domain = this[Users.domain],
-        screenName = this[Users.screenName],
-        description = this[Users.description],
-        password = this[Users.password],
-        inbox = this[Users.inbox],
-        outbox = this[Users.outbox],
-        url = this[Users.url],
-        publicKey = this[Users.publicKey],
-        privateKey = this[Users.privateKey],
-        createdAt = Instant.ofEpochMilli((this[Users.createdAt])),
-        keyId = this[Users.keyId],
-        followers = this[Users.followers],
-        following = this[Users.following]
-    )
-}
-
 object UsersFollowers : LongIdTable("users_followers") {
     val userId: Column<Long> = long("user_id").references(Users.id).index()
     val followerId: Column<Long> = long("follower_id").references(Users.id)
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/UserResultRowMapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/UserResultRowMapper.kt
new file mode 100644
index 00000000..8470a2f6
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/UserResultRowMapper.kt
@@ -0,0 +1,29 @@
+package dev.usbharu.hideout.repository
+
+import dev.usbharu.hideout.domain.model.hideout.entity.User
+import org.jetbrains.exposed.sql.ResultRow
+import org.springframework.stereotype.Component
+import java.time.Instant
+
+@Component
+class UserResultRowMapper(private val userBuilder: User.UserBuilder) : ResultRowMapper<User> {
+    override fun map(resultRow: ResultRow): User {
+        return userBuilder.of(
+            id = resultRow[Users.id],
+            name = resultRow[Users.name],
+            domain = resultRow[Users.domain],
+            screenName = resultRow[Users.screenName],
+            description = resultRow[Users.description],
+            password = resultRow[Users.password],
+            inbox = resultRow[Users.inbox],
+            outbox = resultRow[Users.outbox],
+            url = resultRow[Users.url],
+            publicKey = resultRow[Users.publicKey],
+            privateKey = resultRow[Users.privateKey],
+            createdAt = Instant.ofEpochMilli((resultRow[Users.createdAt])),
+            keyId = resultRow[Users.keyId],
+            followers = resultRow[Users.followers],
+            following = resultRow[Users.following]
+        )
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt b/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt
index 8a7b1a95..26a6306b 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt
@@ -69,6 +69,7 @@ class APNoteServiceImpl(
     private val postService: PostService,
     private val apResourceResolveService: APResourceResolveService,
     private val apRequestService: APRequestService,
+    private val postBuilder: Post.PostBuilder,
     private val transaction: Transaction
 
 ) : APNoteService, PostCreateInterceptor {
@@ -224,7 +225,7 @@ class APNoteServiceImpl(
 
         // TODO: リモートのメディア処理を追加
         postService.createRemote(
-            Post.of(
+            postBuilder.of(
                 id = postRepository.generateId(),
                 userId = person.second.id,
                 text = note.content.orEmpty(),
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/post/PostServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/post/PostServiceImpl.kt
index ac5e54c6..c98ee233 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/post/PostServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/post/PostServiceImpl.kt
@@ -16,7 +16,8 @@ class PostServiceImpl(
     private val postRepository: PostRepository,
     private val userRepository: UserRepository,
     private val timelineService: TimelineService,
-    private val postQueryService: PostQueryService
+    private val postQueryService: PostQueryService,
+    private val postBuilder: Post.PostBuilder
 ) : PostService {
     private val interceptors = Collections.synchronizedList(mutableListOf<PostCreateInterceptor>())
 
@@ -45,7 +46,7 @@ class PostServiceImpl(
     private suspend fun internalCreate(post: PostCreateDto, isLocal: Boolean): Post {
         val user = userRepository.findById(post.userId) ?: throw UserNotFoundException("${post.userId} was not found")
         val id = postRepository.generateId()
-        val createPost = Post.of(
+        val createPost = postBuilder.of(
             id = id,
             userId = post.userId,
             overview = post.overview,
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/user/UserServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/user/UserServiceImpl.kt
index bb349ff3..6688ce48 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/user/UserServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/user/UserServiceImpl.kt
@@ -21,6 +21,7 @@ class UserServiceImpl(
     private val apSendFollowService: APSendFollowService,
     private val userQueryService: UserQueryService,
     private val followerQueryService: FollowerQueryService,
+    private val userBuilder: User.UserBuilder,
     private val applicationConfig: ApplicationConfig
 ) :
     UserService {
@@ -35,7 +36,7 @@ class UserServiceImpl(
         val hashedPassword = userAuthService.hash(user.password)
         val keyPair = userAuthService.generateKeyPair()
         val userUrl = "${applicationConfig.url}/users/${user.name}"
-        val userEntity = User.of(
+        val userEntity = userBuilder.of(
             id = nextId,
             name = user.name,
             domain = applicationConfig.url.host,
@@ -57,7 +58,7 @@ class UserServiceImpl(
 
     override suspend fun createRemoteUser(user: RemoteUserCreateDto): User {
         val nextId = userRepository.nextId()
-        val userEntity = User.of(
+        val userEntity = userBuilder.of(
             id = nextId,
             name = user.name,
             domain = user.domain,
diff --git a/src/test/kotlin/dev/usbharu/hideout/service/ap/APNoteServiceImplTest.kt b/src/test/kotlin/dev/usbharu/hideout/service/ap/APNoteServiceImplTest.kt
index 2543c8e9..628a8eff 100644
--- a/src/test/kotlin/dev/usbharu/hideout/service/ap/APNoteServiceImplTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/service/ap/APNoteServiceImplTest.kt
@@ -3,8 +3,8 @@
 
 package dev.usbharu.hideout.service.ap
 
-import dev.usbharu.hideout.config.Config
-import dev.usbharu.hideout.config.ConfigData
+import dev.usbharu.hideout.config.ApplicationConfig
+import dev.usbharu.hideout.config.CharacterLimit
 import dev.usbharu.hideout.domain.model.hideout.entity.Post
 import dev.usbharu.hideout.domain.model.hideout.entity.User
 import dev.usbharu.hideout.domain.model.hideout.entity.Visibility
@@ -23,21 +23,28 @@ import org.junit.jupiter.api.Test
 import org.mockito.Mockito.anyLong
 import org.mockito.Mockito.eq
 import org.mockito.kotlin.*
-import utils.JsonObjectMapper
 import utils.JsonObjectMapper.objectMapper
 import utils.TestApplicationConfig.testApplicationConfig
+import java.net.URL
 import java.time.Instant
 import kotlin.test.assertEquals
 
 class APNoteServiceImplTest {
+
+    val userBuilder = User.UserBuilder(CharacterLimit(), ApplicationConfig(URL("https://example.com")))
+    val postBuilder = Post.PostBuilder(CharacterLimit())
+
     @Test
     fun `createPost 新しい投稿`() {
         val mediaQueryService = mock<MediaQueryService> {
             onBlocking { findByPostId(anyLong()) } doReturn emptyList()
         }
+
+
+
         runTest {
             val followers = listOf(
-                User.of(
+                userBuilder.of(
                     2L,
                     "follower",
                     "follower.example.com",
@@ -51,7 +58,7 @@ class APNoteServiceImplTest {
                     createdAt = Instant.now(),
                     keyId = "a"
                 ),
-                User.of(
+                userBuilder.of(
                     3L,
                     "follower2",
                     "follower2.example.com",
@@ -67,7 +74,7 @@ class APNoteServiceImplTest {
                 )
             )
             val userQueryService = mock<UserQueryService> {
-                onBlocking { findById(eq(1L)) } doReturn User.of(
+                onBlocking { findById(eq(1L)) } doReturn userBuilder.of(
                     1L,
                     "test",
                     "example.com",
@@ -101,9 +108,10 @@ class APNoteServiceImplTest {
                     postService = mock(),
                     apResourceResolveService = mock(),
                     apRequestService = mock(),
-                    transaction = mock()
+                    transaction = mock(),
+                    postBuilder = postBuilder
                 )
-            val postEntity = Post.of(
+            val postEntity = postBuilder.of(
                 1L,
                 1L,
                 null,
@@ -123,7 +131,7 @@ class APNoteServiceImplTest {
             val mediaQueryService = mock<MediaQueryService> {
                 onBlocking { findByPostId(anyLong()) } doReturn emptyList()
             }
-            Config.configData = ConfigData(objectMapper = JsonObjectMapper.objectMapper)
+
             val httpClient = HttpClient(
                 MockEngine { httpRequestData ->
                     assertEquals("https://follower.example.com/inbox", httpRequestData.url.toString())
@@ -143,7 +151,8 @@ class APNoteServiceImplTest {
                 postService = mock(),
                 apResourceResolveService = mock(),
                 apRequestService = mock(),
-                transaction = mock()
+                transaction = mock(),
+                postBuilder = postBuilder
             )
             activityPubNoteService.createNoteJob(
                 JobProps(
diff --git a/src/test/kotlin/dev/usbharu/hideout/service/ap/APReceiveFollowServiceImplTest.kt b/src/test/kotlin/dev/usbharu/hideout/service/ap/APReceiveFollowServiceImplTest.kt
index d1d51fa7..38c266e1 100644
--- a/src/test/kotlin/dev/usbharu/hideout/service/ap/APReceiveFollowServiceImplTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/service/ap/APReceiveFollowServiceImplTest.kt
@@ -3,12 +3,13 @@
 
 package dev.usbharu.hideout.service.ap
 
-import dev.usbharu.hideout.config.Config
-import dev.usbharu.hideout.config.ConfigData
+import dev.usbharu.hideout.config.ApplicationConfig
+import dev.usbharu.hideout.config.CharacterLimit
 import dev.usbharu.hideout.domain.model.ap.Follow
 import dev.usbharu.hideout.domain.model.ap.Image
 import dev.usbharu.hideout.domain.model.ap.Key
 import dev.usbharu.hideout.domain.model.ap.Person
+import dev.usbharu.hideout.domain.model.hideout.entity.Post
 import dev.usbharu.hideout.domain.model.hideout.entity.User
 import dev.usbharu.hideout.domain.model.job.ReceiveFollowJob
 import dev.usbharu.hideout.query.UserQueryService
@@ -23,12 +24,16 @@ import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
 import org.mockito.ArgumentMatchers.anyString
 import org.mockito.kotlin.*
-import utils.JsonObjectMapper
 import utils.JsonObjectMapper.objectMapper
 import utils.TestTransaction
+import java.net.URL
 import java.time.Instant
 
 class APReceiveFollowServiceImplTest {
+
+    val userBuilder = User.UserBuilder(CharacterLimit(), ApplicationConfig(URL("https://example.com")))
+    val postBuilder = Post.PostBuilder(CharacterLimit())
+
     @Test
     fun `receiveFollow フォロー受付処理`() = runTest {
         val jobQueueParentService = mock<JobQueueParentService> {
@@ -80,7 +85,6 @@ class APReceiveFollowServiceImplTest {
 
     @Test
     fun `receiveFollowJob フォロー受付処理のJob`() = runTest {
-        Config.configData = ConfigData(objectMapper = JsonObjectMapper.objectMapper)
         val person = Person(
             type = emptyList(),
             name = "follower",
@@ -112,7 +116,7 @@ class APReceiveFollowServiceImplTest {
         }
         val userQueryService = mock<UserQueryService> {
             onBlocking { findByUrl(eq("https://example.com")) } doReturn
-                    User.of(
+                    userBuilder.of(
                         id = 1L,
                         name = "test",
                         domain = "example.com",
@@ -122,11 +126,13 @@ class APReceiveFollowServiceImplTest {
                         outbox = "https://example.com/outbox",
                         url = "https://example.com",
                         publicKey = "",
+                        password = "a",
+                        privateKey = "a",
                         createdAt = Instant.now(),
                         keyId = "a"
                     )
             onBlocking { findByUrl(eq("https://follower.example.com")) } doReturn
-                    User.of(
+                    userBuilder.of(
                         id = 2L,
                         name = "follower",
                         domain = "follower.example.com",
diff --git a/src/test/kotlin/dev/usbharu/hideout/service/ap/resource/APResourceResolveServiceImplTest.kt b/src/test/kotlin/dev/usbharu/hideout/service/ap/resource/APResourceResolveServiceImplTest.kt
index 344a07d8..87f5a553 100644
--- a/src/test/kotlin/dev/usbharu/hideout/service/ap/resource/APResourceResolveServiceImplTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/service/ap/resource/APResourceResolveServiceImplTest.kt
@@ -1,6 +1,9 @@
 package dev.usbharu.hideout.service.ap.resource
 
+import dev.usbharu.hideout.config.ApplicationConfig
+import dev.usbharu.hideout.config.CharacterLimit
 import dev.usbharu.hideout.domain.model.ap.Object
+import dev.usbharu.hideout.domain.model.hideout.entity.Post
 import dev.usbharu.hideout.domain.model.hideout.entity.User
 import dev.usbharu.hideout.repository.UserRepository
 import io.ktor.client.*
@@ -16,6 +19,7 @@ import org.mockito.kotlin.any
 import org.mockito.kotlin.doReturn
 import org.mockito.kotlin.mock
 import org.mockito.kotlin.whenever
+import java.net.URL
 import java.time.Instant
 import kotlin.test.assertEquals
 
@@ -23,6 +27,9 @@ import kotlin.test.assertEquals
 @Disabled
 class APResourceResolveServiceImplTest {
 
+    val userBuilder = User.UserBuilder(CharacterLimit(), ApplicationConfig(URL("https://example.com")))
+    val postBuilder = Post.PostBuilder(CharacterLimit())
+
     @Test
     fun `単純な一回のリクエスト`() = runTest {
 
@@ -36,7 +43,7 @@ class APResourceResolveServiceImplTest {
         val userRepository = mock<UserRepository>()
 
         whenever(userRepository.findById(any())).doReturn(
-            User.of(
+            userBuilder.of(
                 2L,
                 "follower",
                 "follower.example.com",
@@ -72,7 +79,7 @@ class APResourceResolveServiceImplTest {
         val userRepository = mock<UserRepository>()
 
         whenever(userRepository.findById(any())).doReturn(
-            User.of(
+            userBuilder.of(
                 2L,
                 "follower",
                 "follower.example.com",
@@ -111,7 +118,7 @@ class APResourceResolveServiceImplTest {
         val userRepository = mock<UserRepository>()
 
         whenever(userRepository.findById(any())).doReturn(
-            User.of(
+            userBuilder.of(
                 2L,
                 "follower",
                 "follower.example.com",
@@ -161,7 +168,7 @@ class APResourceResolveServiceImplTest {
         val userRepository = mock<UserRepository>()
 
         whenever(userRepository.findById(any())).doReturn(
-            User.of(
+            userBuilder.of(
                 2L,
                 "follower",
                 "follower.example.com",
diff --git a/src/test/kotlin/dev/usbharu/hideout/service/user/UserServiceTest.kt b/src/test/kotlin/dev/usbharu/hideout/service/user/UserServiceTest.kt
index 26e4ebf8..663d7f40 100644
--- a/src/test/kotlin/dev/usbharu/hideout/service/user/UserServiceTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/service/user/UserServiceTest.kt
@@ -2,10 +2,12 @@
 
 package dev.usbharu.hideout.service.user
 
-import dev.usbharu.hideout.config.Config
-import dev.usbharu.hideout.config.ConfigData
+import dev.usbharu.hideout.config.ApplicationConfig
+import dev.usbharu.hideout.config.CharacterLimit
 import dev.usbharu.hideout.domain.model.hideout.dto.RemoteUserCreateDto
 import dev.usbharu.hideout.domain.model.hideout.dto.UserCreateDto
+import dev.usbharu.hideout.domain.model.hideout.entity.Post
+import dev.usbharu.hideout.domain.model.hideout.entity.User
 import dev.usbharu.hideout.repository.UserRepository
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.test.runTest
@@ -13,14 +15,17 @@ import org.junit.jupiter.api.Test
 import org.mockito.ArgumentMatchers.anyString
 import org.mockito.kotlin.*
 import utils.TestApplicationConfig.testApplicationConfig
+import java.net.URL
 import java.security.KeyPairGenerator
 import kotlin.test.assertEquals
 import kotlin.test.assertNull
 
 class UserServiceTest {
+    val userBuilder = User.UserBuilder(CharacterLimit(), ApplicationConfig(URL("https://example.com")))
+    val postBuilder = Post.PostBuilder(CharacterLimit())
     @Test
     fun `createLocalUser ローカルユーザーを作成できる`() = runTest {
-        Config.configData = ConfigData(domain = "example.com", url = "https://example.com")
+
         val userRepository = mock<UserRepository> {
             onBlocking { nextId() } doReturn 110001L
         }
@@ -30,7 +35,15 @@ class UserServiceTest {
             onBlocking { generateKeyPair() } doReturn generateKeyPair
         }
         val userService =
-            UserServiceImpl(userRepository, userAuthService, mock(), mock(), mock(), testApplicationConfig)
+            UserServiceImpl(
+                userRepository,
+                userAuthService,
+                mock(),
+                mock(),
+                mock(),
+                userBuilder,
+                testApplicationConfig,
+            )
         userService.createLocalUser(UserCreateDto("test", "testUser", "XXXXXXXXXXXXX", "test"))
         verify(userRepository, times(1)).save(any())
         argumentCaptor<dev.usbharu.hideout.domain.model.hideout.entity.User> {
@@ -51,20 +64,20 @@ class UserServiceTest {
 
     @Test
     fun `createRemoteUser リモートユーザーを作成できる`() = runTest {
-        Config.configData = ConfigData(domain = "remote.example.com", url = "https://remote.example.com")
 
         val userRepository = mock<UserRepository> {
             onBlocking { nextId() } doReturn 113345L
         }
-        val userService = UserServiceImpl(userRepository, mock(), mock(), mock(), mock(), testApplicationConfig)
+        val userService =
+            UserServiceImpl(userRepository, mock(), mock(), mock(), mock(), userBuilder, testApplicationConfig)
         val user = RemoteUserCreateDto(
             name = "test",
-            domain = "example.com",
+            domain = "remote.example.com",
             screenName = "testUser",
             description = "test user",
-            inbox = "https://example.com/inbox",
-            outbox = "https://example.com/outbox",
-            url = "https://example.com",
+            inbox = "https://remote.example.com/inbox",
+            outbox = "https://remote.example.com/outbox",
+            url = "https://remote.example.com",
             publicKey = "-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----",
             keyId = "a",
             following = "",
@@ -79,10 +92,10 @@ class UserServiceTest {
             assertEquals("test user", firstValue.description)
             assertNull(firstValue.password)
             assertEquals(113345L, firstValue.id)
-            assertEquals("https://example.com", firstValue.url)
-            assertEquals("example.com", firstValue.domain)
-            assertEquals("https://example.com/inbox", firstValue.inbox)
-            assertEquals("https://example.com/outbox", firstValue.outbox)
+            assertEquals("https://remote.example.com", firstValue.url)
+            assertEquals("remote.example.com", firstValue.domain)
+            assertEquals("https://remote.example.com/inbox", firstValue.inbox)
+            assertEquals("https://remote.example.com/outbox", firstValue.outbox)
             assertEquals("-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----", firstValue.publicKey)
             assertNull(firstValue.privateKey)
         }