diff --git a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/form/UserCreate.kt b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/form/UserCreate.kt
new file mode 100644
index 00000000..40d96a92
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/form/UserCreate.kt
@@ -0,0 +1,3 @@
+package dev.usbharu.hideout.domain.model.hideout.form
+
+data class UserCreate(val username: String, val password: String)
diff --git a/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Users.kt b/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Users.kt
new file mode 100644
index 00000000..a16f28b7
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Users.kt
@@ -0,0 +1,89 @@
+package dev.usbharu.hideout.routing.api.internal.v1
+
+import dev.usbharu.hideout.config.Config
+import dev.usbharu.hideout.domain.model.hideout.dto.UserCreateDto
+import dev.usbharu.hideout.domain.model.hideout.form.UserCreate
+import dev.usbharu.hideout.exception.ParameterNotExistException
+import dev.usbharu.hideout.plugins.TOKEN_AUTH
+import dev.usbharu.hideout.service.impl.IUserService
+import dev.usbharu.hideout.util.AcctUtil
+import io.ktor.http.*
+import io.ktor.server.application.*
+import io.ktor.server.auth.*
+import io.ktor.server.auth.jwt.*
+import io.ktor.server.request.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+
+fun Route.users(userService: IUserService) {
+    route("/users") {
+        get {
+            call.respond(userService.findAll())
+        }
+        post {
+            val userCreate = call.receive<UserCreate>()
+            if (userService.usernameAlreadyUse(userCreate.username)) {
+                return@post call.respond(HttpStatusCode.BadRequest)
+            }
+            val user = userService.createLocalUser(
+                UserCreateDto(
+                    userCreate.username,
+                    userCreate.username,
+                    "",
+                    userCreate.password
+                )
+            )
+            call.response.header("Location", "${Config.configData.url}/api/internal/v1/users/${user.name}")
+            call.respond(HttpStatusCode.OK)
+        }
+        route("/{name}") {
+
+            route("/followers") {
+                get {
+                    val userParameter = call.parameters["name"]
+                        ?: throw ParameterNotExistException("Parameter(name='userName@domain') does not exist.")
+                    if (userParameter.toLongOrNull() != null) {
+                        return@get call.respond(userService.findFollowersById(userParameter.toLong()))
+                    }
+                    val acct = AcctUtil.parse(userParameter)
+                    return@get call.respond(userService.findFollowersByNameAndDomain(acct.username, acct.domain))
+                }
+                authenticate(TOKEN_AUTH) {
+
+                    post {
+                        val userId = call.principal<JWTPrincipal>()?.payload?.getClaim("uid")?.asLong()
+                            ?: throw IllegalStateException("no principal")
+                        val userParameter = call.parameters["name"]
+                            ?: throw ParameterNotExistException("Parameter(name='userName@domain') does not exist.")
+                        if (userParameter.toLongOrNull() != null) {
+                            if (userService.addFollowers(userParameter.toLong(), userId)) {
+                                return@post call.respond(HttpStatusCode.OK)
+                            } else {
+                                return@post call.respond(HttpStatusCode.Accepted)
+                            }
+                        }
+                        val acct = AcctUtil.parse(userParameter)
+                        val targetUser = userService.findByNameAndDomain(acct.username, acct.domain)
+                        if (userService.addFollowers(targetUser.id, userId)) {
+                            return@post call.respond(HttpStatusCode.OK)
+                        } else {
+                            return@post call.respond(HttpStatusCode.Accepted)
+                        }
+                    }
+                }
+            }
+            route("/following") {
+                get {
+                    val userParameter = (call.parameters["name"]
+                        ?: throw ParameterNotExistException("Parameter(name='userName@domain') does not exist."))
+                    if (userParameter.toLongOrNull() != null) {
+                        return@get call.respond(userService.findFollowingById(userParameter.toLong()))
+                    }
+                    val acct = AcctUtil.parse(userParameter)
+                    return@get call.respond(userService.findFollowingByNameAndDomain(acct.username, acct.domain))
+                }
+            }
+        }
+
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/impl/IUserService.kt b/src/main/kotlin/dev/usbharu/hideout/service/impl/IUserService.kt
index d2d61b1b..ab726ac1 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/impl/IUserService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/impl/IUserService.kt
@@ -16,6 +16,8 @@ interface IUserService {
 
     suspend fun findByNameLocalUser(name: String): User
 
+    suspend fun findByNameAndDomain(name: String, domain: String? = null): User
+
     suspend fun findByNameAndDomains(names: List<Pair<String, String>>): List<User>
 
     suspend fun findByUrl(url: String): User
@@ -30,5 +32,18 @@ interface IUserService {
 
     suspend fun findFollowersById(id: Long): List<User>
 
-    suspend fun addFollowers(id: Long, follower: Long)
+    suspend fun findFollowersByNameAndDomain(name: String, domain: String?): List<User>
+
+    suspend fun findFollowingById(id: Long): List<User>
+
+    suspend fun findFollowingByNameAndDomain(name: String, domain: String?): List<User>
+
+    /**
+     * フォロワーを追加する
+     *
+     * @param id
+     * @param follower
+     * @return リクエストが成功したか
+     */
+    suspend fun addFollowers(id: Long, follower: Long): Boolean
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/impl/PostService.kt b/src/main/kotlin/dev/usbharu/hideout/service/impl/PostService.kt
index e017610d..28fa7c9c 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/impl/PostService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/impl/PostService.kt
@@ -92,6 +92,31 @@ class PostService(
         }
     }
 
+    override suspend fun findByUserIdForUser(
+        userId: Long,
+        since: Instant?,
+        until: Instant?,
+        minId: Long?,
+        maxId: Long?,
+        limit: Int?,
+        forUserId: Long?
+    ): List<Post> {
+        TODO("Not yet implemented")
+    }
+
+    override suspend fun findByUserNameAndDomainForUser(
+        userName: String,
+        domain: String,
+        since: Instant?,
+        until: Instant?,
+        minId: Long?,
+        maxId: Long?,
+        limit: Int?,
+        forUserId: Long?
+    ): List<Post> {
+        TODO("Not yet implemented")
+    }
+
     override suspend fun delete(id: String) {
         TODO("Not yet implemented")
     }
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt b/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt
index 599e274f..490c3859 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt
@@ -35,6 +35,10 @@ class UserService(private val userRepository: IUserRepository, private val userA
             ?: throw UserNotFoundException("$name was not found.")
     }
 
+    override suspend fun findByNameAndDomain(name: String, domain: String?): User {
+        TODO("Not yet implemented")
+    }
+
     override suspend fun findByNameAndDomains(names: List<Pair<String, String>>): List<User> =
         userRepository.findByNameAndDomains(names)
 
@@ -87,6 +91,21 @@ class UserService(private val userRepository: IUserRepository, private val userA
     }
 
     override suspend fun findFollowersById(id: Long): List<User> = userRepository.findFollowersById(id)
+    override suspend fun findFollowersByNameAndDomain(name: String, domain: String?): List<User> {
+        TODO("Not yet implemented")
+    }
 
-    override suspend fun addFollowers(id: Long, follower: Long) = userRepository.createFollower(id, follower)
+    override suspend fun findFollowingById(id: Long): List<User> {
+        TODO("Not yet implemented")
+    }
+
+    override suspend fun findFollowingByNameAndDomain(name: String, domain: String?): List<User> {
+        TODO("Not yet implemented")
+    }
+
+    //TODO APのフォロー処理を作る
+    override suspend fun addFollowers(id: Long, follower: Long): Boolean {
+        userRepository.createFollower(id, follower)
+        return false
+    }
 }