diff --git a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Timeline.kt b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Timeline.kt
index a7536851..e8e591ea 100644
--- a/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Timeline.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/entity/Timeline.kt
@@ -1,7 +1,6 @@
 package dev.usbharu.hideout.domain.model.hideout.entity
 
 import org.springframework.data.annotation.Id
-import java.time.Instant
 
 data class Timeline(
     @Id
@@ -10,9 +9,9 @@ data class Timeline(
     val timelineId: Long,
     val postId: Long,
     val postUserId: Long,
-    val createdAt: Instant,
-    val replyId: Long,
-    val repostId: Long,
+    val createdAt: Long,
+    val replyId: Long?,
+    val repostId: Long?,
     val visibility: Visibility,
     val sensitive: Boolean
 )
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepository.kt b/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepository.kt
index 7077fe99..716609f5 100644
--- a/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepository.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepository.kt
@@ -3,7 +3,9 @@ package dev.usbharu.hideout.repository
 import dev.usbharu.hideout.domain.model.hideout.entity.Timeline
 import org.springframework.data.mongodb.repository.MongoRepository
 
-interface MongoTimelineRepository : TimelineRepository, MongoRepository<Timeline, Long> {
-    override fun findByUserId(id: Long): List<Timeline>
-    override fun findByUserIdAndTimelineId(userId: Long, timelineId: Long): List<Timeline>
+interface MongoTimelineRepository : MongoRepository<Timeline, Long> {
+
+
+    fun findByUserId(id: Long): List<Timeline>
+    fun findByUserIdAndTimelineId(userId: Long, timelineId: Long): List<Timeline>
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepositoryWrapper.kt b/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepositoryWrapper.kt
new file mode 100644
index 00000000..98674637
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/MongoTimelineRepositoryWrapper.kt
@@ -0,0 +1,38 @@
+package dev.usbharu.hideout.repository
+
+import dev.usbharu.hideout.domain.model.hideout.entity.Timeline
+import dev.usbharu.hideout.service.core.IdGenerateService
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.springframework.stereotype.Repository
+
+@Repository
+class MongoTimelineRepositoryWrapper(
+    private val mongoTimelineRepository: MongoTimelineRepository,
+    private val idGenerateService: IdGenerateService
+) :
+    TimelineRepository {
+    override suspend fun generateId(): Long = idGenerateService.generateId()
+
+    override suspend fun save(timeline: Timeline): Timeline {
+        return withContext(Dispatchers.IO) {
+            mongoTimelineRepository.save(timeline)
+        }
+    }
+
+    override suspend fun saveAll(timelines: List<Timeline>): List<Timeline> {
+        return mongoTimelineRepository.saveAll(timelines)
+    }
+
+    override suspend fun findByUserId(id: Long): List<Timeline> {
+        return withContext(Dispatchers.IO) {
+            mongoTimelineRepository.findByUserId(id)
+        }
+    }
+
+    override suspend fun findByUserIdAndTimelineId(userId: Long, timelineId: Long): List<Timeline> {
+        return withContext(Dispatchers.IO) {
+            mongoTimelineRepository.findByUserIdAndTimelineId(userId, timelineId)
+        }
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/TimelineRepository.kt b/src/main/kotlin/dev/usbharu/hideout/repository/TimelineRepository.kt
index 80b88278..76e9755c 100644
--- a/src/main/kotlin/dev/usbharu/hideout/repository/TimelineRepository.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/TimelineRepository.kt
@@ -3,6 +3,9 @@ package dev.usbharu.hideout.repository
 import dev.usbharu.hideout.domain.model.hideout.entity.Timeline
 
 interface TimelineRepository {
-    fun findByUserId(id: Long): List<Timeline>
-    fun findByUserIdAndTimelineId(userId: Long, timelineId: Long): List<Timeline>
+    suspend fun generateId(): Long
+    suspend fun save(timeline: Timeline): Timeline
+    suspend fun saveAll(timelines: List<Timeline>): List<Timeline>
+    suspend fun findByUserId(id: Long): List<Timeline>
+    suspend fun findByUserIdAndTimelineId(userId: Long, timelineId: Long): List<Timeline>
 }
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 d0f91b25..f2531442 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/post/PostServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/post/PostServiceImpl.kt
@@ -13,6 +13,7 @@ import java.util.*
 class PostServiceImpl(
     private val postRepository: PostRepository,
     private val userRepository: UserRepository,
+    private val timelineService: TimelineService
 ) : PostService {
     private val interceptors = Collections.synchronizedList(mutableListOf<PostCreateInterceptor>())
 
@@ -31,7 +32,7 @@ class PostServiceImpl(
     }
 
     private suspend fun internalCreate(post: Post): Post {
-
+        timelineService.publishTimeline(post)
         return postRepository.save(post)
     }
 
@@ -49,6 +50,6 @@ class PostServiceImpl(
             repostId = null,
             replyId = null
         )
-        return internalCreate(post)
+        return internalCreate(createPost)
     }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/post/TimelineService.kt b/src/main/kotlin/dev/usbharu/hideout/service/post/TimelineService.kt
new file mode 100644
index 00000000..681893f7
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/service/post/TimelineService.kt
@@ -0,0 +1,31 @@
+package dev.usbharu.hideout.service.post
+
+import dev.usbharu.hideout.domain.model.hideout.entity.Post
+import dev.usbharu.hideout.domain.model.hideout.entity.Timeline
+import dev.usbharu.hideout.query.FollowerQueryService
+import dev.usbharu.hideout.repository.TimelineRepository
+import org.springframework.stereotype.Service
+
+@Service
+class TimelineService(
+    private val followerQueryService: FollowerQueryService,
+    private val timelineRepository: TimelineRepository
+) {
+    suspend fun publishTimeline(post: Post) {
+        val findFollowersById = followerQueryService.findFollowersById(post.userId)
+        timelineRepository.saveAll(findFollowersById.map {
+            Timeline(
+                id = timelineRepository.generateId(),
+                userId = it.id,
+                timelineId = 0,
+                postId = post.id,
+                postUserId = post.userId,
+                createdAt = post.createdAt,
+                replyId = post.replyId,
+                repostId = post.repostId,
+                visibility = post.visibility,
+                sensitive = post.sensitive
+            )
+        })
+    }
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 876dbe3d..889d71f4 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -24,7 +24,11 @@ spring:
     password: ""
   data:
     mongodb:
-
+      host: localhost
+      port: 27017
+      database: hideout
+  #      username: hideoutuser
+  #      password: hideoutpass
 
   h2:
     console: