diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/timeline/Timeline.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/timeline/Timeline.kt
index 9b713d8f..d253d275 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/timeline/Timeline.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/timeline/Timeline.kt
@@ -26,6 +26,20 @@ class Timeline(
         addDomainEvent(TimelineEventFactory(this).createEvent(TimelineEvent.CHANGE_VISIBILITY))
     }
 
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as Timeline
+
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id.hashCode()
+    }
+
+
     companion object {
         fun create(
             id: TimelineId,
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepositoryTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepositoryTest.kt
index f80bc992..2802bc3d 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepositoryTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepositoryTest.kt
@@ -8,16 +8,17 @@ import dev.usbharu.hideout.core.domain.model.timeline.TimelineVisibility
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import dev.usbharu.hideout.core.domain.shared.domainevent.DomainEventPublisher
 import kotlinx.coroutines.test.runTest
+import org.assertj.core.api.Assertions.assertThat
 import org.assertj.db.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
 import org.mockito.InjectMocks
 import org.mockito.Mock
 import org.mockito.junit.jupiter.MockitoExtension
-import utils.AbstractRepositoryTest
-import utils.columns
-import utils.disableReferenceIntegrityConstraints
-import utils.isEqualTo
+import utils.*
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+import kotlin.test.assertNull
 
 @ExtendWith(MockitoExtension::class)
 class ExposedTimelineRepositoryTest : AbstractRepositoryTest(Timelines) {
@@ -87,4 +88,105 @@ class ExposedTimelineRepositoryTest : AbstractRepositoryTest(Timelines) {
             .isEqualTo(Timelines.visibility, timeline.visibility.name)
             .isEqualTo(Timelines.isSystem, timeline.isSystem)
     }
+
+    @Test
+    fun delete_削除される() = runTest {
+        dbSetup(to = dataSource) {
+            execute(disableReferenceIntegrityConstraints)
+            insertInto(UserDetails.tableName) {
+                columns(UserDetails.columns)
+                values(1, 1, "veeeeeeeeeeeeeeryStrongPassword", true, null, null)
+            }
+            insertInto(Timelines.tableName) {
+                columns(Timelines.columns)
+                values(1, 1, "test-timeline", "PUBLIC", true)
+            }
+
+        }.launch()
+        val timeline = Timeline(
+            id = TimelineId(1),
+            userDetailId = UserDetailId(1),
+            name = TimelineName("timeline"),
+            visibility = TimelineVisibility.PRIVATE,
+            isSystem = false
+        )
+
+        change.withSuspend {
+            repository.delete(timeline)
+        }
+
+        assertThat(change)
+            .changeOfDeletionOnTable(Timelines.tableName)
+            .rowAtStartPoint()
+            .value(Timelines.id.name).isEqualTo(timeline.id.value)
+    }
+
+    @Test
+    fun findByIds_指定されたIdすべて返す() = runTest {
+        dbSetup(to = dataSource) {
+            execute(disableReferenceIntegrityConstraints)
+            insertInto(Timelines.tableName) {
+                columns(Timelines.columns)
+                values(1, 1, "test-timeline", "PUBLIC", true)
+                values(2, 1, "test-timeline2", "PUBLIC", true)
+                values(3, 1, "test-timeline3", "PUBLIC", true)
+            }
+        }.launch()
+
+        val findByIds = repository.findByIds(listOf(TimelineId(1), TimelineId(3)))
+
+        assertThat(findByIds)
+            .hasSize(2)
+    }
+
+    @Test
+    fun findById_指定されたIdが存在したら返す() = runTest {
+        dbSetup(to = dataSource) {
+            execute(disableReferenceIntegrityConstraints)
+            insertInto(Timelines.tableName) {
+                columns(Timelines.columns)
+                values(1, 1, "test-timeline", "PUBLIC", true)
+                values(2, 1, "test-timeline2", "PUBLIC", true)
+                values(3, 1, "test-timeline3", "PUBLIC", true)
+            }
+        }.launch()
+
+        val actual = repository.findById(TimelineId(1))
+
+        val expected = Timeline(
+            TimelineId(1), UserDetailId(1), TimelineName("test-timeline"), TimelineVisibility.PUBLIC, true
+        )
+
+        assertEquals(expected, actual)
+        assertNotNull(actual)
+        assertEquals(expected.id, actual.id)
+        assertEquals(expected.userDetailId, actual.userDetailId)
+        assertEquals(expected.name, actual.name)
+        assertEquals(expected.visibility, actual.visibility)
+        assertEquals(expected.isSystem, actual.isSystem)
+    }
+
+    @Test
+    fun findById_指定されたIdがなければnull() = runTest {
+        assertNull(repository.findById(TimelineId(1)))
+    }
+
+    @Test
+    fun findAllByUserDetailIdANdVisibilityIn_指定されたVisibilityで指定されたUserDetailId全部返す() = runTest {
+        dbSetup(to = dataSource) {
+            execute(disableReferenceIntegrityConstraints)
+            insertInto(Timelines.tableName) {
+                columns(Timelines.columns)
+                values(1, 1, "test-timeline", "PUBLIC", true)
+                values(2, 1, "test-timeline2", "PRIVATE", true)
+                values(3, 1, "test-timeline3", "PUBLIC", true)
+            }
+        }.launch()
+
+        val timelines =
+            repository.findAllByUserDetailIdAndVisibilityIn(UserDetailId(1), listOf(TimelineVisibility.PUBLIC))
+
+        assertThat(timelines)
+            .hasSize(2)
+    }
 }