diff --git a/server/src/main/kotlin/suwayomi/server/database/migration/M0004_AnimeTablesBatch1.kt b/server/src/main/kotlin/suwayomi/server/database/migration/M0004_AnimeTablesBatch1.kt
index 5a6e8b1..3bca772 100644
--- a/server/src/main/kotlin/suwayomi/server/database/migration/M0004_AnimeTablesBatch1.kt
+++ b/server/src/main/kotlin/suwayomi/server/database/migration/M0004_AnimeTablesBatch1.kt
@@ -14,7 +14,7 @@ import suwayomi.server.database.migration.lib.Migration
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 class M0004_AnimeTablesBatch1 : Migration() {
-    private object AnimeExtensionTable : IntIdTable() {
+    private class AnimeExtensionTable : IntIdTable() {
         val apkName = varchar("apk_name", 1024)
 
         // default is the local source icon from tachiyomi
@@ -35,7 +35,7 @@ class M0004_AnimeTablesBatch1 : Migration() {
         val classFQName = varchar("class_name", 1024).default("") // fully qualified name
     }
 
-    private object AnimeSourceTable : IdTable<Long>() {
+    private class AnimeSourceTable : IdTable<Long>() {
         override val id = long("id").entityId()
         val name = varchar("name", 128)
         val lang = varchar("lang", 10)
@@ -46,8 +46,8 @@ class M0004_AnimeTablesBatch1 : Migration() {
     override fun run() {
         transaction {
             SchemaUtils.create(
-                AnimeExtensionTable,
-                AnimeSourceTable
+                AnimeExtensionTable(),
+                AnimeSourceTable()
             )
         }
     }
diff --git a/server/src/main/kotlin/suwayomi/server/database/migration/M0005_AnimeTablesBatch2.kt b/server/src/main/kotlin/suwayomi/server/database/migration/M0005_AnimeTablesBatch2.kt
index 9169cf3..35bfb21 100644
--- a/server/src/main/kotlin/suwayomi/server/database/migration/M0005_AnimeTablesBatch2.kt
+++ b/server/src/main/kotlin/suwayomi/server/database/migration/M0005_AnimeTablesBatch2.kt
@@ -14,7 +14,7 @@ import suwayomi.server.database.migration.lib.Migration
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 class M0005_AnimeTablesBatch2 : Migration() {
-    private object AnimeTable : IntIdTable() {
+    private class AnimeTable : IntIdTable() {
         val url = varchar("url", 2048)
         val title = varchar("title", 512)
         val initialized = bool("initialized").default(false)
@@ -38,7 +38,7 @@ class M0005_AnimeTablesBatch2 : Migration() {
     override fun run() {
         transaction {
             SchemaUtils.create(
-                AnimeTable
+                AnimeTable()
             )
         }
     }
diff --git a/server/src/main/kotlin/suwayomi/server/database/migration/M0006_AnimeTablesBatch3.kt b/server/src/main/kotlin/suwayomi/server/database/migration/M0006_AnimeTablesBatch3.kt
index 891a708..5a83f08 100644
--- a/server/src/main/kotlin/suwayomi/server/database/migration/M0006_AnimeTablesBatch3.kt
+++ b/server/src/main/kotlin/suwayomi/server/database/migration/M0006_AnimeTablesBatch3.kt
@@ -14,7 +14,7 @@ import suwayomi.server.database.migration.lib.Migration
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 class M0006_AnimeTablesBatch3 : Migration() {
-    private object EpisodeTable : IntIdTable() {
+    private class EpisodeTable : IntIdTable() {
         val url = varchar("url", 2048)
         val name = varchar("name", 512)
         val date_upload = long("date_upload").default(0)
@@ -34,7 +34,7 @@ class M0006_AnimeTablesBatch3 : Migration() {
     override fun run() {
         transaction {
             SchemaUtils.create(
-                EpisodeTable
+                EpisodeTable()
             )
         }
     }
diff --git a/server/src/main/kotlin/suwayomi/server/database/migration/M0010_MangaAndChapterMeta.kt b/server/src/main/kotlin/suwayomi/server/database/migration/M0010_MangaAndChapterMeta.kt
new file mode 100644
index 0000000..8a8e019
--- /dev/null
+++ b/server/src/main/kotlin/suwayomi/server/database/migration/M0010_MangaAndChapterMeta.kt
@@ -0,0 +1,38 @@
+package suwayomi.server.database.migration
+
+import org.jetbrains.exposed.dao.id.IntIdTable
+import org.jetbrains.exposed.sql.ReferenceOption
+import org.jetbrains.exposed.sql.SchemaUtils
+import org.jetbrains.exposed.sql.transactions.transaction
+import suwayomi.server.database.migration.lib.Migration
+import suwayomi.tachidesk.model.table.ChapterTable
+import suwayomi.tachidesk.model.table.MangaTable
+
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+class M0010_MangaAndChapterMeta : Migration() {
+    private class ChapterMetaTable : IntIdTable() {
+        val key = varchar("key", 256)
+        val value = varchar("value", 4096)
+        val ref = reference("chapter_ref", ChapterTable, ReferenceOption.CASCADE)
+    }
+    private class MangaMetaTable : IntIdTable() {
+        val key = varchar("key", 256)
+        val value = varchar("value", 4096)
+        val ref = reference("manga_ref", MangaTable, ReferenceOption.CASCADE)
+    }
+
+    override fun run() {
+        transaction {
+            SchemaUtils.create(
+                ChapterMetaTable(),
+                MangaMetaTable()
+            )
+        }
+    }
+}
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/TachideskAPI.kt b/server/src/main/kotlin/suwayomi/tachidesk/TachideskAPI.kt
index 5c7df9c..b7d32b5 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/TachideskAPI.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/TachideskAPI.kt
@@ -18,11 +18,13 @@ import suwayomi.tachidesk.impl.CategoryManga.removeMangaFromCategory
 import suwayomi.tachidesk.impl.Chapter.getChapter
 import suwayomi.tachidesk.impl.Chapter.getChapterList
 import suwayomi.tachidesk.impl.Chapter.modifyChapter
+import suwayomi.tachidesk.impl.Chapter.modifyChapterMeta
 import suwayomi.tachidesk.impl.Library.addMangaToLibrary
 import suwayomi.tachidesk.impl.Library.getLibraryMangas
 import suwayomi.tachidesk.impl.Library.removeMangaFromLibrary
 import suwayomi.tachidesk.impl.Manga.getManga
 import suwayomi.tachidesk.impl.Manga.getMangaThumbnail
+import suwayomi.tachidesk.impl.Manga.modifyMangaMeta
 import suwayomi.tachidesk.impl.MangaList.getMangaList
 import suwayomi.tachidesk.impl.Page.getPageImage
 import suwayomi.tachidesk.impl.Search.sourceFilters
@@ -185,6 +187,18 @@ object TachideskAPI {
             ctx.json(future { getChapterList(mangaId, onlineFetch) })
         }
 
+        // used to modify a manga's meta paramaters
+        app.patch("/api/v1/manga/:mangaId/meta") { ctx ->
+            val mangaId = ctx.pathParam("mangaId").toInt()
+
+            val key = ctx.formParam("key")!!
+            val value = ctx.formParam("value")!!
+
+            modifyMangaMeta(mangaId, key, value)
+
+            ctx.status(200)
+        }
+
         // used to display a chapter, get a chapter in order to show it's pages
         app.get("/api/v1/manga/:mangaId/chapter/:chapterIndex") { ctx ->
             val chapterIndex = ctx.pathParam("chapterIndex").toInt()
@@ -207,6 +221,19 @@ object TachideskAPI {
             ctx.status(200)
         }
 
+        // used to modify a chapter's meta paramaters
+        app.patch("/api/v1/manga/:mangaId/chapter/:chapterIndex/meta") { ctx ->
+            val chapterIndex = ctx.pathParam("chapterIndex").toInt()
+            val mangaId = ctx.pathParam("mangaId").toInt()
+
+            val key = ctx.formParam("key")!!
+            val value = ctx.formParam("value")!!
+
+            modifyChapterMeta(mangaId, chapterIndex, key, value)
+
+            ctx.status(200)
+        }
+
         // get page at index "index"
         app.get("/api/v1/manga/:mangaId/chapter/:chapterIndex/page/:index") { ctx ->
             val mangaId = ctx.pathParam("mangaId").toInt()
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/impl/Chapter.kt b/server/src/main/kotlin/suwayomi/tachidesk/impl/Chapter.kt
index d062377..ea31205 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/impl/Chapter.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/impl/Chapter.kt
@@ -9,6 +9,7 @@ package suwayomi.tachidesk.impl
 
 import eu.kanade.tachiyomi.source.model.SChapter
 import eu.kanade.tachiyomi.source.model.SManga
+import org.jetbrains.exposed.dao.id.EntityID
 import org.jetbrains.exposed.sql.SortOrder.DESC
 import org.jetbrains.exposed.sql.and
 import org.jetbrains.exposed.sql.deleteWhere
@@ -20,6 +21,7 @@ import suwayomi.tachidesk.impl.Manga.getManga
 import suwayomi.tachidesk.impl.util.GetHttpSource.getHttpSource
 import suwayomi.tachidesk.impl.util.lang.awaitSingle
 import suwayomi.tachidesk.model.dataclass.ChapterDataClass
+import suwayomi.tachidesk.model.table.ChapterMetaTable
 import suwayomi.tachidesk.model.table.ChapterTable
 import suwayomi.tachidesk.model.table.MangaTable
 import suwayomi.tachidesk.model.table.PageTable
@@ -131,6 +133,7 @@ object Chapter {
                 dbChapter[ChapterTable.pageCount],
 
                 chapterList.size,
+                meta = getChapterMetaMap(dbChapter[ChapterTable.id])
             )
         }
     }
@@ -199,7 +202,8 @@ object Chapter {
                 chapterEntry[ChapterTable.chapterIndex],
                 chapterEntry[ChapterTable.isDownloaded],
                 pageCount,
-                chapterCount.toInt()
+                chapterCount.toInt(),
+                getChapterMetaMap(chapterEntry[ChapterTable.id])
             )
         } else {
             ChapterTable.toDataClass(chapterEntry)
@@ -230,4 +234,30 @@ object Chapter {
             }
         }
     }
+
+    fun getChapterMetaMap(chapter: EntityID<Int>): Map<String, String> {
+        return transaction {
+            ChapterMetaTable.select { ChapterMetaTable.ref eq chapter }
+                .associate { it[ChapterMetaTable.key] to it[ChapterMetaTable.value] }
+        }
+    }
+
+    fun modifyChapterMeta(mangaId: Int, chapterIndex: Int, key: String, value: String) {
+        transaction {
+            val chapter = ChapterTable.select { (ChapterTable.manga eq mangaId) and (ChapterTable.chapterIndex eq chapterIndex) }
+                .first()[ChapterTable.id]
+            val meta = transaction { ChapterMetaTable.select { (ChapterMetaTable.ref eq chapter) and (ChapterMetaTable.key eq key) } }.firstOrNull()
+            if (meta == null) {
+                ChapterMetaTable.insert {
+                    it[ChapterMetaTable.key] = key
+                    it[ChapterMetaTable.value] = value
+                    it[ChapterMetaTable.ref] = chapter
+                }
+            } else {
+                ChapterMetaTable.update {
+                    it[ChapterMetaTable.value] = value
+                }
+            }
+        }
+    }
 }
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/impl/Manga.kt b/server/src/main/kotlin/suwayomi/tachidesk/impl/Manga.kt
index 490d386..9e7c953 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/impl/Manga.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/impl/Manga.kt
@@ -9,6 +9,9 @@ package suwayomi.tachidesk.impl
 
 import eu.kanade.tachiyomi.network.GET
 import eu.kanade.tachiyomi.source.model.SManga
+import org.jetbrains.exposed.dao.id.EntityID
+import org.jetbrains.exposed.sql.and
+import org.jetbrains.exposed.sql.insert
 import org.jetbrains.exposed.sql.select
 import org.jetbrains.exposed.sql.transactions.transaction
 import org.jetbrains.exposed.sql.update
@@ -24,6 +27,7 @@ import suwayomi.tachidesk.impl.util.network.await
 import suwayomi.tachidesk.impl.util.storage.CachedImageResponse.clearCachedImage
 import suwayomi.tachidesk.impl.util.storage.CachedImageResponse.getCachedImageResponse
 import suwayomi.tachidesk.model.dataclass.MangaDataClass
+import suwayomi.tachidesk.model.table.MangaMetaTable
 import suwayomi.tachidesk.model.table.MangaStatus
 import suwayomi.tachidesk.model.table.MangaTable
 import java.io.InputStream
@@ -57,6 +61,7 @@ object Manga {
                 MangaStatus.valueOf(mangaEntry[MangaTable.status]).name,
                 mangaEntry[MangaTable.inLibrary],
                 getSource(mangaEntry[MangaTable.sourceReference]),
+                getMangaMetaMap(mangaEntry[MangaTable.id]),
                 false
             )
         } else { // initialize manga
@@ -104,11 +109,38 @@ object Manga {
                 MangaStatus.valueOf(fetchedManga.status).name,
                 mangaEntry[MangaTable.inLibrary],
                 getSource(mangaEntry[MangaTable.sourceReference]),
+                getMangaMetaMap(mangaEntry[MangaTable.id]),
                 true
             )
         }
     }
 
+    fun getMangaMetaMap(manga: EntityID<Int>): Map<String, String> {
+        return transaction {
+            MangaMetaTable.select { MangaMetaTable.ref eq manga }
+                .associate { it[MangaMetaTable.key] to it[MangaMetaTable.value] }
+        }
+    }
+
+    fun modifyMangaMeta(mangaId: Int, key: String, value: String) {
+        transaction {
+            val manga = MangaMetaTable.select { (MangaTable.id eq mangaId) }
+                .first()[MangaTable.id]
+            val meta = transaction { MangaMetaTable.select { (MangaMetaTable.ref eq manga) and (MangaMetaTable.key eq key) } }.firstOrNull()
+            if (meta == null) {
+                MangaMetaTable.insert {
+                    it[MangaMetaTable.key] = key
+                    it[MangaMetaTable.value] = value
+                    it[MangaMetaTable.ref] = manga
+                }
+            } else {
+                MangaMetaTable.update {
+                    it[MangaMetaTable.value] = value
+                }
+            }
+        }
+    }
+
     private val applicationDirs by DI.global.instance<ApplicationDirs>()
     suspend fun getMangaThumbnail(mangaId: Int): Pair<InputStream, String> {
         val saveDir = applicationDirs.mangaThumbnailsRoot
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/impl/MangaList.kt b/server/src/main/kotlin/suwayomi/tachidesk/impl/MangaList.kt
index b3359c0..cb8e28d 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/impl/MangaList.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/impl/MangaList.kt
@@ -11,6 +11,7 @@ import eu.kanade.tachiyomi.source.model.MangasPage
 import org.jetbrains.exposed.sql.insertAndGetId
 import org.jetbrains.exposed.sql.select
 import org.jetbrains.exposed.sql.transactions.transaction
+import suwayomi.tachidesk.impl.Manga.getMangaMetaMap
 import suwayomi.tachidesk.impl.util.GetHttpSource.getHttpSource
 import suwayomi.tachidesk.impl.util.lang.awaitSingle
 import suwayomi.tachidesk.model.dataclass.MangaDataClass
@@ -89,7 +90,8 @@ object MangaList {
                         mangaEntry[MangaTable.description],
                         mangaEntry[MangaTable.genre],
                         MangaStatus.valueOf(mangaEntry[MangaTable.status]).name,
-                        mangaEntry[MangaTable.inLibrary]
+                        mangaEntry[MangaTable.inLibrary],
+                        meta = getMangaMetaMap(mangaEntry[MangaTable.id])
                     )
                 }
             }
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/ChapterDataClass.kt b/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/ChapterDataClass.kt
index 9a956f5..528effe 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/ChapterDataClass.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/ChapterDataClass.kt
@@ -39,4 +39,6 @@ data class ChapterDataClass(
     /** total chapter count, used to calculate if there's a next and prev chapter */
     val chapterCount: Int? = null,
 
+    /** used to store client specific values */
+    val meta: Map<String, String> = emptyMap(),
 )
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/MangaDataClass.kt b/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/MangaDataClass.kt
index 7ed07ff..1570a52 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/MangaDataClass.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/model/dataclass/MangaDataClass.kt
@@ -26,6 +26,7 @@ data class MangaDataClass(
     val status: String = MangaStatus.UNKNOWN.name,
     val inLibrary: Boolean = false,
     val source: SourceDataClass? = null,
+    val meta: Map<String, String> = emptyMap(),
 
     val freshData: Boolean = false
 )
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterMetaTable.kt b/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterMetaTable.kt
new file mode 100644
index 0000000..c3ca6c8
--- /dev/null
+++ b/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterMetaTable.kt
@@ -0,0 +1,10 @@
+package suwayomi.tachidesk.model.table
+
+import org.jetbrains.exposed.dao.id.IntIdTable
+import org.jetbrains.exposed.sql.ReferenceOption
+
+object ChapterMetaTable : IntIdTable() {
+    val key = varchar("key", 256)
+    val value = varchar("value", 4096)
+    val ref = reference("chapter_ref", ChapterTable, ReferenceOption.CASCADE)
+}
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterTable.kt b/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterTable.kt
index c39ecd3..ad187d4 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterTable.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/model/table/ChapterTable.kt
@@ -11,6 +11,7 @@ import org.jetbrains.exposed.dao.id.IntIdTable
 import org.jetbrains.exposed.sql.ResultRow
 import org.jetbrains.exposed.sql.select
 import org.jetbrains.exposed.sql.transactions.transaction
+import suwayomi.tachidesk.impl.Chapter.getChapterMetaMap
 import suwayomi.tachidesk.model.dataclass.ChapterDataClass
 
 object ChapterTable : IntIdTable() {
@@ -51,4 +52,5 @@ fun ChapterTable.toDataClass(chapterEntry: ResultRow) =
         chapterEntry[isDownloaded],
         chapterEntry[pageCount],
         transaction { ChapterTable.select { ChapterTable.manga eq chapterEntry[manga].value }.count().toInt() },
+        getChapterMetaMap(chapterEntry[id]),
     )
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaMetaTable.kt b/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaMetaTable.kt
new file mode 100644
index 0000000..f726997
--- /dev/null
+++ b/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaMetaTable.kt
@@ -0,0 +1,10 @@
+package suwayomi.tachidesk.model.table
+
+import org.jetbrains.exposed.dao.id.IntIdTable
+import org.jetbrains.exposed.sql.ReferenceOption
+
+object MangaMetaTable : IntIdTable() {
+    val key = varchar("key", 256)
+    val value = varchar("value", 4096)
+    val ref = reference("manga_ref", MangaTable, ReferenceOption.CASCADE)
+}
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaTable.kt b/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaTable.kt
index 9792ef7..d1d9039 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaTable.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/model/table/MangaTable.kt
@@ -10,6 +10,7 @@ package suwayomi.tachidesk.model.table
 import eu.kanade.tachiyomi.source.model.SManga
 import org.jetbrains.exposed.dao.id.IntIdTable
 import org.jetbrains.exposed.sql.ResultRow
+import suwayomi.tachidesk.impl.Manga.getMangaMetaMap
 import suwayomi.tachidesk.impl.MangaList.proxyThumbnailUrl
 import suwayomi.tachidesk.model.dataclass.MangaDataClass
 import suwayomi.tachidesk.model.table.MangaStatus.Companion
@@ -50,7 +51,8 @@ fun MangaTable.toDataClass(mangaEntry: ResultRow) =
         mangaEntry[description],
         mangaEntry[genre],
         Companion.valueOf(mangaEntry[status]).name,
-        mangaEntry[inLibrary]
+        mangaEntry[inLibrary],
+        meta = getMangaMetaMap(mangaEntry[id])
     )
 
 enum class MangaStatus(val status: Int) {