diff --git a/src-core/examples/add-to-yomitan.rs b/src-core/examples/add-to-yomitan.rs
index 6d4ca6f..d053991 100644
--- a/src-core/examples/add-to-yomitan.rs
+++ b/src-core/examples/add-to-yomitan.rs
@@ -23,11 +23,8 @@ fn main() -> Result<(), anyhow::Error> {
             let start = Instant::now();
 
             println!("zip_file: {:?}", p);
-            println!(
-                "{:?}\n[{:.2?}]",
-                import_bundled_zip_file(conn, p)?,
-                start.elapsed(),
-            );
+            println!("{:?}", import_bundled_zip_file(conn, p, "ja")?,);
+            println!("[{:.2?}]", start.elapsed(),);
         } else {
             println!("not zip_file: {:?}", p);
         }
diff --git a/src-core/examples/search-yomitan.rs b/src-core/examples/search-yomitan.rs
index 6dfddbb..df04713 100644
--- a/src-core/examples/search-yomitan.rs
+++ b/src-core/examples/search-yomitan.rs
@@ -8,8 +8,10 @@ fn main() -> Result<(), anyhow::Error> {
     let conn = &mut Connection::open("test.db")?;
 
     let start = Instant::now();
-    let rs = search_yomitan(conn, "食べる", "食べる", 5, 0)?;
-    println!("{:#?}\n[{:.2?}]", rs, start.elapsed());
+    let rs = search_yomitan(conn, "擦る", "する", 10, 0)?;
+    println!("{:#?}", rs);
+    println!("n={}", rs.len());
+    println!("[{:.2?}]", start.elapsed());
 
     Ok(())
 }
diff --git a/src-core/examples/yomitan-mod-schema.rs b/src-core/examples/yomitan-mod-schema.rs
new file mode 100644
index 0000000..1ddcc24
--- /dev/null
+++ b/src-core/examples/yomitan-mod-schema.rs
@@ -0,0 +1,15 @@
+use std::time::Instant;
+
+use anyhow::Ok;
+use cjdic2_core::db::create_schema;
+use rusqlite::Connection;
+
+fn main() -> Result<(), anyhow::Error> {
+    let conn = &mut Connection::open("test.db")?;
+
+    let start = Instant::now();
+    create_schema(conn)?;
+    println!("[{:.2?}]", start.elapsed());
+
+    Ok(())
+}
diff --git a/src-core/src/db.rs b/src-core/src/db.rs
index 6d3b674..a3d5756 100644
--- a/src-core/src/db.rs
+++ b/src-core/src/db.rs
@@ -5,7 +5,7 @@ use rusqlite::{Connection, Result};
 use crate::models::Entry;
 
 mod yomitan;
-pub use yomitan::{YomitanRow, import_bundled_zip_file, search_yomitan};
+pub use yomitan::{YomitanRow, create_schema, import_bundled_zip_file, search_yomitan};
 
 pub struct Database {
     conn: Mutex<Connection>,
diff --git a/src-core/src/db/yomitan.rs b/src-core/src/db/yomitan.rs
index b8011be..3a2be6e 100644
--- a/src-core/src/db/yomitan.rs
+++ b/src-core/src/db/yomitan.rs
@@ -13,9 +13,10 @@ fn blake3_hex(s: &str) -> String {
     format!("{}", hash(s.as_bytes()))
 }
 
-fn create_schema(conn: &Connection) -> rusqlite::Result<()> {
+pub fn create_schema(conn: &Connection) -> rusqlite::Result<()> {
     conn.execute_batch(
-        "PRAGMA journal_mode = WAL;
+        "
+        PRAGMA journal_mode = WAL;
         PRAGMA foreign_keys = ON;
         PRAGMA synchronous  = NORMAL;
         PRAGMA cache_size   = -65536;
@@ -32,9 +33,9 @@ fn create_schema(conn: &Connection) -> rusqlite::Result<()> {
             author       TEXT,
             url          TEXT,
             description  TEXT,
-            is_bundled   INTEGER NOT NULL DEFAULT 1,
             sort_order   INTEGER NOT NULL DEFAULT 0,
             installed_at TEXT    NOT NULL DEFAULT (datetime('now')),
+            lang         TEXT    NOT NULL,
             UNIQUE (title, revision)
         );
         CREATE TABLE IF NOT EXISTS glossaries (
@@ -57,10 +58,6 @@ fn create_schema(conn: &Connection) -> rusqlite::Result<()> {
             sequence INTEGER,
             term_tags_id INTEGER
         );
-        CREATE INDEX IF NOT EXISTS terms_term_reading ON terms (term, reading);
-        CREATE INDEX IF NOT EXISTS terms_term ON terms (term);
-        CREATE INDEX IF NOT EXISTS terms_reading ON terms (reading);
-
         CREATE TABLE IF NOT EXISTS term_meta (
             id INTEGER PRIMARY KEY,
             dict_id INTEGER NOT NULL REFERENCES dictionaries(id) ON DELETE CASCADE,
@@ -92,6 +89,15 @@ fn create_schema(conn: &Connection) -> rusqlite::Result<()> {
         ",
     )?;
 
+    conn.execute_batch(
+        "
+        CREATE INDEX IF NOT EXISTS dictionaries_lang ON dictionaries (lang);
+
+        CREATE INDEX IF NOT EXISTS terms_term ON terms (term);
+        CREATE INDEX IF NOT EXISTS terms_reading ON terms (reading);
+        ",
+    )?;
+
     let mut stmt = conn.prepare("SELECT 1 FROM schema_meta WHERE key = 'schema_version'")?;
     if stmt.exists([])? == false {
         conn.prepare("INSERT INTO schema_meta (key, value) VALUES ('schema_version', '1')")?
@@ -124,13 +130,14 @@ fn intern(
 #[derive(Serialize, Debug)]
 pub struct YomitanZipImportResult {
     exists: bool,
-    done: bool,
+    load: bool,
     error: Option<String>,
 }
 
 pub fn import_bundled_zip_file(
     conn: &mut Connection,
     zip_path: PathBuf,
+    lang: &str,
 ) -> anyhow::Result<YomitanZipImportResult, CJDicError> {
     create_schema(&conn)?;
 
@@ -148,7 +155,7 @@ pub fn import_bundled_zip_file(
             eprintln!("{}", e);
             return Ok(YomitanZipImportResult {
                 exists: false,
-                done: false,
+                load: false,
                 error: Some(format!("{}", e)),
             });
         }
@@ -172,20 +179,21 @@ pub fn import_bundled_zip_file(
     if exists {
         return Ok(YomitanZipImportResult {
             exists: true,
-            done: false,
+            load: false,
             error: None,
         });
     }
 
     let tx = conn.transaction()?;
     tx.execute(
-            "INSERT INTO dictionaries (title, revision, author, url, description, is_bundled) VALUES (?1, ?2, ?3, ?4, ?5, 1)",
-            [
+            "INSERT INTO dictionaries (title, revision, author, url, description, lang) VALUES (?1, ?2, ?3, ?4, ?5, ?6)",
+            params![
                 index_file.get("title").and_then(Value::as_str),
                 index_file.get("revision").and_then(Value::as_str),
                 index_file.get("author").and_then(Value::as_str),
                 index_file.get("url").and_then(Value::as_str),
                 index_file.get("description").and_then(Value::as_str),
+                lang,
             ],
         )?;
 
@@ -373,7 +381,7 @@ pub fn import_bundled_zip_file(
 
     Ok(YomitanZipImportResult {
         exists: true,
-        done: true,
+        load: true,
         error: None,
     })
 }