diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/followtimeline/FollowTimeline.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/followtimeline/FollowTimeline.kt
deleted file mode 100644
index 463e4c32..00000000
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/followtimeline/FollowTimeline.kt
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2024 usbharu
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package dev.usbharu.hideout.core.domain.model.followtimeline
-
-import dev.usbharu.hideout.core.domain.model.timeline.TimelineId
-import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
-
-class FollowTimeline(val userDetailId: UserDetailId, val timelineId: TimelineId)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/followtimeline/FollowTimelineRepository.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/followtimeline/FollowTimelineRepository.kt
deleted file mode 100644
index 92273f70..00000000
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/followtimeline/FollowTimelineRepository.kt
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2024 usbharu
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package dev.usbharu.hideout.core.domain.model.followtimeline
-
-interface FollowTimelineRepository {
-    suspend fun save(followTimeline: FollowTimeline): FollowTimeline
-    suspend fun delete(followTimeline: FollowTimeline)
-}
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/relationship/Relationship.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/relationship/Relationship.kt
index f1f48851..87bccaea 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/relationship/Relationship.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/relationship/Relationship.kt
@@ -53,7 +53,7 @@ class Relationship(
     }
 
     fun block() {
-        require(following.not())
+        unfollow()
         blocking = true
         addDomainEvent(RelationshipEventFactory(this).createEvent(RelationshipEvent.BLOCK))
     }
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/relationship/RelationshipTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/relationship/RelationshipTest.kt
new file mode 100644
index 00000000..7a299558
--- /dev/null
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/model/relationship/RelationshipTest.kt
@@ -0,0 +1,140 @@
+package dev.usbharu.hideout.core.domain.model.relationship
+
+import dev.usbharu.hideout.core.domain.event.relationship.RelationshipEvent
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import org.junit.jupiter.api.Test
+import utils.AssertDomainEvent.assertContainsEvent
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class RelationshipTest {
+    @Test
+    fun unfollow_フォローとフォローリクエストが取り消されUNFOLLOWとUNFOLLOW_REQUESTが発生する() {
+        val relationship = Relationship(
+            actorId = ActorId(1),
+            targetActorId = ActorId(2),
+            following = true,
+            blocking = false,
+            muting = false,
+            followRequesting = false,
+            mutingFollowRequest = false
+        )
+
+        relationship.unfollow()
+
+        assertFalse(relationship.following)
+        assertFalse(relationship.followRequesting)
+        assertContainsEvent(relationship, RelationshipEvent.UNFOLLOW.eventName)
+        assertContainsEvent(relationship, RelationshipEvent.UNFOLLOW_REQUEST.eventName)
+    }
+
+    @Test
+    fun block_unfollowされblockが発生する() {
+        val relationship = Relationship(
+            actorId = ActorId(1),
+            targetActorId = ActorId(2),
+            following = true,
+            blocking = false,
+            muting = false,
+            followRequesting = false,
+            mutingFollowRequest = false
+        )
+
+        relationship.block()
+
+        assertTrue(relationship.blocking)
+        assertContainsEvent(relationship, RelationshipEvent.BLOCK.eventName)
+    }
+
+    @Test
+    fun mute_MUTEが発生する() {
+        val relationship = Relationship(
+            actorId = ActorId(1),
+            targetActorId = ActorId(2),
+            following = true,
+            blocking = false,
+            muting = false,
+            followRequesting = false,
+            mutingFollowRequest = false
+        )
+
+        relationship.mute()
+
+        assertTrue(relationship.muting)
+        assertContainsEvent(relationship, RelationshipEvent.MUTE.eventName)
+    }
+
+    @Test
+    fun unmute_UNMUTEが発生する() {
+        val relationship = Relationship(
+            actorId = ActorId(1),
+            targetActorId = ActorId(2),
+            following = true,
+            blocking = false,
+            muting = true,
+            followRequesting = false,
+            mutingFollowRequest = true
+        )
+
+        relationship.unmute()
+
+        assertFalse(relationship.muting)
+        assertContainsEvent(relationship, RelationshipEvent.UNMUTE.eventName)
+    }
+
+    @Test
+    fun muteFollowRequest_muteFollowiRequestがtrueになる() {
+        val relationship = Relationship(
+            actorId = ActorId(1),
+            targetActorId = ActorId(2),
+            following = true,
+            blocking = false,
+            muting = false,
+            followRequesting = true,
+            mutingFollowRequest = false
+        )
+
+        relationship.muteFollowRequest()
+
+        assertTrue(relationship.mutingFollowRequest)
+    }
+
+    @Test
+    fun unmuteFollowRequest_muteFollowiRequestがfalseになる() {
+        val relationship = Relationship(
+            actorId = ActorId(1),
+            targetActorId = ActorId(2),
+            following = true,
+            blocking = false,
+            muting = false,
+            followRequesting = true,
+            mutingFollowRequest = true
+        )
+
+        relationship.unmuteFollowRequest()
+
+        assertFalse(relationship.mutingFollowRequest)
+    }
+
+    @Test
+    fun followRequest_followRequestingがtrueになりFOLLOW_REQUESTが発生する() {
+
+    }
+
+    @Test
+    fun followRequest_ブロックしている場合はフォローリクエストを送れない() {
+
+    }
+
+    @Test
+    fun unfollowRequest_followRequestingがfalseになりUNFOLLOW_REQUESTが発生する() {
+
+    }
+
+    @Test
+    fun acceptFollowRequest_followingがtrueにfollowRequestingがfalseになりaccept_followが発生する() {
+
+    }
+
+    
+}
\ No newline at end of file