diff --git a/src/zh/terrahistoricus/build.gradle b/src/zh/terrahistoricus/build.gradle
index 13b0dd776..622f088ed 100644
--- a/src/zh/terrahistoricus/build.gradle
+++ b/src/zh/terrahistoricus/build.gradle
@@ -6,7 +6,7 @@ ext {
     extName = 'Terra Historicus'
     pkgNameSuffix = 'zh.terrahistoricus'
     extClass = '.TerraHistoricus'
-    extVersionCode = 1
+    extVersionCode = 2
 }
 
 apply from: "$rootDir/common.gradle"
diff --git a/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricus.kt b/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricus.kt
index bf2f8aebe..cb13d5346 100644
--- a/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricus.kt
+++ b/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricus.kt
@@ -6,6 +6,7 @@ import eu.kanade.tachiyomi.source.model.FilterList
 import eu.kanade.tachiyomi.source.model.MangasPage
 import eu.kanade.tachiyomi.source.model.Page
 import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
 import eu.kanade.tachiyomi.source.online.HttpSource
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.json.Json
@@ -21,43 +22,45 @@ class TerraHistoricus : HttpSource() {
 
     private val json: Json by injectLazy()
 
-    override fun popularMangaRequest(page: Int) = GET("$baseUrl/api/comic")
+    override fun popularMangaRequest(page: Int) = GET("$baseUrl/api/comic", headers)
+    override fun popularMangaParse(response: Response) =
+        MangasPage(response.parseAs<List<THComic>>().map { it.toSManga() }, false)
 
-    override fun popularMangaParse(response: Response) = MangasPage(
-        json.decodeFromString<THResult<List<THComic>>>(response.body!!.string()).data.map(THComic::toSManga),
-        false
-    )
+    override fun latestUpdatesRequest(page: Int) = GET("$baseUrl/api/recentUpdate", headers)
+    override fun latestUpdatesParse(response: Response) =
+        MangasPage(response.parseAs<List<THRecentUpdate>>().map { it.toSManga() }, false)
 
-    override fun latestUpdatesRequest(page: Int) = GET("$baseUrl/api/recentUpdate")
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> =
+        fetchPopularManga(page).map { mangasPage ->
+            val mangas = mangasPage.mangas.filter { it.title.contains(query) }
+            MangasPage(mangas, false)
+        }
 
-    override fun latestUpdatesParse(response: Response) = MangasPage(
-        json.decodeFromString<THResult<List<THRecentUpdate>>>(response.body!!.string()).data.map(THRecentUpdate::toSManga),
-        false
-    )
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList) = throw UnsupportedOperationException("Not used.")
+    override fun searchMangaParse(response: Response) = throw UnsupportedOperationException("Not used.")
 
-    override fun searchMangaRequest(page: Int, query: String, filters: FilterList) =
-        throw UnsupportedOperationException("没有搜索功能")
+    // navigate webview to webpage
+    override fun mangaDetailsRequest(manga: SManga) = GET(baseUrl + manga.url.removePrefix("/api"), headers)
 
-    override fun searchMangaParse(response: Response) = throw UnsupportedOperationException("没有搜索功能")
+    override fun fetchMangaDetails(manga: SManga): Observable<SManga> =
+        client.newCall(chapterListRequest(manga)).asObservableSuccess()
+            .map { response -> mangaDetailsParse(response).apply { initialized = true } }
 
-    override fun mangaDetailsParse(response: Response) =
-        json.decodeFromString<THResult<THComic>>(response.body!!.string()).data.toSManga()
+    override fun mangaDetailsParse(response: Response) = response.parseAs<THComic>().toSManga()
 
-    override fun chapterListParse(response: Response) =
-        json.decodeFromString<THResult<THComic>>(response.body!!.string()).data.toSChapterList().orEmpty()
+    override fun chapterListParse(response: Response) = response.parseAs<THComic>().toSChapterList()
 
-    override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
-        return client.newCall(pageListRequest(chapter))
-            .asObservableSuccess()
-            .map { response ->
-                (0 until json.decodeFromString<THResult<THEpisode>>(response.body!!.string()).data.pageInfos!!.size).map {
-                    Page(it, "$baseUrl${chapter.url}/page?pageNum=${it + 1}")
-                }
+    override fun fetchPageList(chapter: SChapter): Observable<List<Page>> =
+        client.newCall(pageListRequest(chapter)).asObservableSuccess().map { response ->
+            (0 until response.parseAs<THEpisode>().pageInfos!!.size).map {
+                Page(it, "$baseUrl${chapter.url}/page?pageNum=${it + 1}")
             }
-    }
+        }
 
     override fun pageListParse(response: Response) = throw UnsupportedOperationException("Not used.")
 
-    override fun imageUrlParse(response: Response) =
-        json.decodeFromString<THResult<THPage>>(response.body!!.string()).data.url
+    override fun imageUrlParse(response: Response) = response.parseAs<THPage>().url
+
+    private inline fun <reified T> Response.parseAs() =
+        json.decodeFromString<THResult<T>>(this.body!!.string()).data
 }
diff --git a/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricusDto.kt b/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricusDto.kt
index 85be93a25..6bfaddc46 100644
--- a/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricusDto.kt
+++ b/src/zh/terrahistoricus/src/eu/kanade/tachiyomi/extension/zh/terrahistoricus/TerraHistoricusDto.kt
@@ -1,5 +1,6 @@
 package eu.kanade.tachiyomi.extension.zh.terrahistoricus
 
+import eu.kanade.tachiyomi.AppInfo
 import eu.kanade.tachiyomi.source.model.SChapter
 import eu.kanade.tachiyomi.source.model.SManga
 import kotlinx.serialization.Serializable
@@ -7,10 +8,11 @@ import kotlinx.serialization.Serializable
 @Serializable
 data class THResult<T>(val code: Int, val msg: String, val data: T)
 
+// https://web.hycdn.cn/comic/site/umi.dee612f8.js
 @Serializable
 data class THComic(
     val cid: String,
-//  val type: Int,
+    val type: Int,
     val cover: String,
     val title: String,
     val subtitle: String,
@@ -23,30 +25,51 @@ data class THComic(
 ) {
     private fun getDescription(): String? {
         var result = ""
-        if (subtitle.isNotEmpty()) result += "「$subtitle」"
+        if (subtitle.isNotEmpty()) result += "「$subtitle」\n"
         if (introduction != null) result += introduction
         return result.ifEmpty { null }
     }
 
+    private fun getType() = when (type) {
+        2 -> listOf("相簿")
+        3 -> listOf("四格")
+        else -> emptyList() // 1 = Normal
+    }
+
     fun toSManga() = SManga.create().apply {
         url = "/api/comic/$cid"
         title = this@THComic.title
         author = authors.joinToString("、")
         thumbnail_url = cover
         description = getDescription()
-        genre = keywords?.joinToString("，")?.replace("，", ", ")
+        genre = (getType() + keywords.orEmpty()).joinToString(", ").replace("，", ", ")
     }
 
-    fun toSChapterList() = episodes?.map { episode ->
+    fun toSChapterList() = episodes!!.map { episode ->
         SChapter.create().apply {
             url = "/api/comic/$cid/episode/${episode.cid!!}"
-            try {
-                chapter_number = episode.shortTitle?.toFloat() ?: chapter_number
-                name = episode.title
-            } catch (e: NumberFormatException) {
-                name = "${episode.shortTitle} ${episode.title}"
+            name = if (episode.type != 1) {
+                "${EPISODE_TYPES[episode.type]} ${episode.title}"
+            } else if (episode.shortTitle.isNullOrBlank()) {
+                episode.title
+            } else {
+                "${episode.shortTitle} ${episode.title}"
             }
-            date_upload = (updateTime ?: 0L) * 1000
+        }
+    }.apply {
+        if (isNewDateLogic) {
+            this[0].date_upload = (updateTime ?: 0L) * 1000
+        }
+    }
+
+    companion object {
+        private val EPISODE_TYPES = arrayOf("", "正篇", "番外", "贺图", "公告")
+        private val isNewDateLogic = run {
+            val commitCount = AppInfo.getVersionName().substringAfter('-', "")
+            if (commitCount.isNotEmpty()) // Preview
+                commitCount.toInt() >= 4442
+            else // Stable
+                AppInfo.getVersionCode() >= 81
         }
     }
 }
@@ -72,7 +95,7 @@ data class THRecentUpdate(
 @Serializable
 data class THEpisode(
     val cid: String? = null,
-//  val type: Int,
+    val type: Int,
     val shortTitle: String?,
     val title: String, // 作品信息中
 //  val likes: Int? = null,