diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt
index cca33575..389aa714 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt
@@ -184,6 +184,7 @@ class Post(
     }
 
     fun restore(content: PostContent, overview: PostOverview?, mediaIds: List<MediaId>) {
+        require(deleted)
         deleted = false
         this.content = content
         this.overview = overview
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/post/PostTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/post/PostTest.kt
index 8487e528..7c7be023 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/post/PostTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/post/PostTest.kt
@@ -6,6 +6,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorPublicKey
 import dev.usbharu.hideout.core.domain.model.actor.TestActorFactory
 import dev.usbharu.hideout.core.domain.model.emoji.EmojiId
 import dev.usbharu.hideout.core.domain.model.media.MediaId
+import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertDoesNotThrow
 import org.junit.jupiter.api.assertThrows
@@ -14,6 +15,7 @@ import utils.AssertDomainEvent.assertEmpty
 import java.net.URI
 import java.time.Instant
 import kotlin.test.assertEquals
+import kotlin.test.assertFalse
 import kotlin.test.assertNull
 
 class PostTest {
@@ -550,4 +552,136 @@ class PostTest {
 
         assertEquals(mediaIds, post.mediaIds)
     }
+
+    @Test
+    fun `delete deleteイベントが発生する`() {
+
+        val actor = TestActorFactory.create()
+        val post = TestPostFactory.create(deleted = false, actorId = actor.id.id)
+        post.delete(actor)
+        assertContainsEvent(post, PostEvent.DELETE.eventName)
+    }
+
+    @Test
+    fun `delete すでにdeletedがtrueの時deleteイベントは発生しない`() {
+
+        val actor = TestActorFactory.create()
+        val post = TestPostFactory.create(deleted = true, actorId = actor.id.id)
+        post.delete(actor)
+        assertEmpty(post)
+    }
+
+    @Test
+    fun `delete contentがemptyにoverviewがnullにmediaIdsがemptyになる`() {
+        val actor = TestActorFactory.create()
+        val post = TestPostFactory.create(deleted = false, actorId = actor.id.id)
+        post.delete(actor)
+        assertEquals(PostContent.empty, post.content)
+        assertNull(post.overview)
+        assertEquals(emptyList(), post.mediaIds)
+        assertTrue(post.deleted)
+    }
+
+    @Test
+    fun `checkUpdate CHECKUPDATEイベントが発生する`() {
+        val post = TestPostFactory.create()
+
+        post.checkUpdate()
+
+        assertContainsEvent(post, PostEvent.CHECK_UPDATE.eventName)
+    }
+
+    @Test
+    fun `restore 指定された引数で再構成されCHECKUPDATEイベントが発生する`() {
+        val post = TestPostFactory.create(deleted = true)
+
+        val postContent = PostContent("aiueo", "aiueo", listOf(EmojiId(1)))
+        val overview = PostOverview("overview")
+        val mediaIds = listOf(MediaId(1))
+        post.restore(
+            postContent,
+            overview,
+            mediaIds
+        )
+
+        assertContainsEvent(post, PostEvent.CHECK_UPDATE.eventName)
+        assertEquals(postContent, post.content)
+        assertEquals(overview, post.overview)
+        assertEquals(mediaIds, post.mediaIds)
+    }
+
+    @Test
+    fun deletedがfalseの時失敗する() {
+        val post = TestPostFactory.create(deleted = false)
+
+        val postContent = PostContent("aiueo", "aiueo", listOf(EmojiId(1)))
+        val overview = PostOverview("overview")
+        val mediaIds = listOf(MediaId(1))
+        assertThrows<IllegalArgumentException> {
+            post.restore(
+                postContent,
+                overview,
+                mediaIds
+            )
+        }
+    }
+
+    @Test
+    fun `addMediaIds deletedがtrueの時失敗する`() {
+        val post = TestPostFactory.create(deleted = true)
+        val actor = TestActorFactory.create(id = post.actorId.id)
+
+        assertThrows<IllegalArgumentException> {
+            post.addMediaIds(listOf(MediaId(1)), actor)
+        }
+    }
+
+    @Test
+    fun `addMediaIds updateイベントが発生する`() {
+        val post = TestPostFactory.create(deleted = false)
+        val actor = TestActorFactory.create(id = post.actorId.id)
+
+        post.addMediaIds(listOf(MediaId(2)), actor)
+        assertContainsEvent(post, PostEvent.UPDATE.eventName)
+    }
+
+    @Test
+    fun `hide hideがtrueになる`() {
+        val post = TestPostFactory.create(hide = false)
+
+        post.hide()
+
+        assertTrue(post.hide)
+    }
+
+    @Test
+    fun `show hideがfalseになる`() {
+        val post = TestPostFactory.create(hide = true)
+
+        post.show()
+
+        assertFalse(post.hide)
+    }
+
+    @Test
+    fun `moveTo すでに設定されている場合は失敗する`() {
+        val post = TestPostFactory.create(moveTo = 100)
+        val actor = TestActorFactory.create(post.actorId.id)
+
+        assertThrows<IllegalArgumentException> {
+            post.moveTo(PostId(2), actor)
+        }
+    }
+
+    @Test
+    fun `moveTo moveToが設定される`() {
+        val post = TestPostFactory.create(moveTo = null)
+        val actor = TestActorFactory.create(post.actorId.id)
+
+        assertDoesNotThrow {
+            post.moveTo(PostId(2), actor)
+        }
+
+        assertEquals(PostId(2), post.moveTo)
+    }
 }