diff --git a/src/content/file.ts b/src/content/file.ts
index 8339c59..bad6edc 100644
--- a/src/content/file.ts
+++ b/src/content/file.ts
@@ -15,10 +15,7 @@ export interface ContentFile{
     readonly type: string;
 }
 export type ContentConstructOption = {
-    hash: string,
-    tags: string[],
-    title: string,
-    additional: JSONMap
+    hash: string
 }
 type ContentFileConstructor =  (new (path:string,option?:ContentConstructOption) => ContentFile)&{content_type:string};
 export const createDefaultClass = (type:string):ContentFileConstructor=>{
@@ -41,16 +38,13 @@ export const createDefaultClass = (type:string):ContentFileConstructor=>{
                 content_type: cons.content_type,
                 filename: base,
                 tags: [],
-                content_hash: await this.getHash(),
+                content_hash: this.hash || await this.getHash(),
             } as DocumentBody;
             return ret;
         }
         get type():string{
             return cons.content_type;
         }
-        async getDesc(): Promise<object|null> {
-            return null;
-        }
         async getHash():Promise<string>{
             if(this.hash !== undefined) return this.hash;
             const stat = await promises.stat(this.path);
diff --git a/src/content/manga.ts b/src/content/manga.ts
index f01e2d5..023ae0a 100644
--- a/src/content/manga.ts
+++ b/src/content/manga.ts
@@ -1,26 +1,65 @@
 import {ContentFile, createDefaultClass,registerContentReferrer, ContentConstructOption} from './file';
 import {readZip,createReadStreamFromZip, readAllFromZip} from '../util/zipwrap';
+import { DocumentBody } from '../model/doc';
+import {extname} from 'path';
+
+type MangaType = "doujinshi"|"artist cg"|"manga"|"western";
+interface MangaDesc{
+    title:string,
+    artist?:string[],
+    group?:string[],
+    series?:string[],
+    type:MangaType|[MangaType],
+    character?:string[],
+    tags?:string[]
+}
+const ImageExt = ['.gif', '.png', '.jpeg', '.bmp', '.webp', '.jpg'];
 export class MangaReferrer extends createDefaultClass("manga"){
-    desc: object|null|undefined;
-    additional: object| undefined;
+    desc: MangaDesc|undefined;
+    pagenum: number;
+    additional: ContentConstructOption| undefined;
     constructor(path:string,option?:ContentConstructOption){
         super(path);
         this.additional = option;
+        this.pagenum = 0;
     }
-    async getDesc(){
-        if(this.desc !== undefined){
-            return this.desc;
-        }
+    async initDesc():Promise<void>{
+        if(this.desc !== undefined) return;
         const zip = await readZip(this.path);
-        const entry = zip.entry("desc.json");
+        const entries = zip.entries();
+        this.pagenum = Object.keys(entries).filter(x=>ImageExt.includes(extname(x))).length;
+        const entry =  entries["desc.json"];
         if(entry === undefined){
-            this.desc = null;
-            return this.desc;
+            return;
         }
         const data = (await readAllFromZip(zip,entry)).toString('utf-8');
         this.desc = JSON.parse(data);
-        if(this.desc === undefined) throw new Error("??? JSON.parse is returning undefined");
-        return this.desc;
+        if(this.desc === undefined) 
+            throw new Error(`??? JSON.parse is returning undefined. ${this.path} desc.json format error`);
+    }
+
+    async createDocumentBody(): Promise<DocumentBody>{
+        await this.initDesc();
+        const basebody = await super.createDocumentBody();
+        this.desc?.title;
+        if(this.desc === undefined){
+            return basebody;
+        }
+        let tags:string[] = this.desc.tags || [];
+        tags = tags.concat(this.desc.artist?.map(x=>`artist:${x}`) || []);
+        tags = tags.concat(this.desc.character?.map(x=>`character:${x}`) || []);
+        tags = tags.concat(this.desc.group?.map(x=>`group:${x}`) || []);
+        tags = tags.concat(this.desc.series?.map(x=>`series:${x}`) || []);
+        const type = this.desc.type instanceof Array ? this.desc.type[0]: this.desc.type;
+        tags.push(`type:${type}`);
+        return {
+            ...basebody,
+            title:this.desc.title,
+            additional:{
+                page:this.pagenum
+            },
+            tags:tags
+        };
     }
 };
 registerContentReferrer(MangaReferrer);
\ No newline at end of file