diff --git a/Cargo.lock b/Cargo.lock
index 51a5b24..fa45cc9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1981,6 +1981,12 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "http-range"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21dec9db110f5f872ed9699c3ecf50cf16f423502706ba5c72462e28d3157573"
+
 [[package]]
 name = "httparse"
 version = "1.10.1"
@@ -4837,6 +4843,7 @@ dependencies = [
  "gtk",
  "heck 0.5.0",
  "http",
+ "http-range",
  "jni",
  "libc",
  "log",
diff --git a/src-core/examples/add_yomitan_dict_folder.rs b/src-core/examples/add_yomitan_dict_folder.rs
index 256d63f..a4c8043 100644
--- a/src-core/examples/add_yomitan_dict_folder.rs
+++ b/src-core/examples/add_yomitan_dict_folder.rs
@@ -17,7 +17,7 @@ fn main() -> Result<(), anyhow::Error> {
         println!("{:?}", p);
     })?;
 
-    let zip_dir = Path::new("src-tauri/resources/yomitan");
+    let zip_dir = Path::new("tmp/yomitan");
     println!("zip_dir: {:?}", absolute(zip_dir)); // Relative to workspace root
 
     for entry in
@@ -31,9 +31,15 @@ fn main() -> Result<(), anyhow::Error> {
 
             println!(
                 "{:?}",
-                AppService::import_yomitan_zip_file(&mut writer, &p, "ja", |progress| {
-                    println!("{:?}", progress);
-                })?,
+                AppService::import_yomitan_zip_file(
+                    &mut writer,
+                    &p,
+                    &zip_dir.to_path_buf(),
+                    "ja",
+                    |progress| {
+                        println!("{:?}", progress);
+                    }
+                )?,
             );
         } else {
             println!("not zip_file: {:?}", p);
diff --git a/src-core/src/db/yomitan_writer.rs b/src-core/src/db/yomitan_writer.rs
index ef9afad..79b2806 100644
--- a/src-core/src/db/yomitan_writer.rs
+++ b/src-core/src/db/yomitan_writer.rs
@@ -7,7 +7,8 @@ use std::{
     borrow::Cow,
     collections::HashMap,
     env::current_dir,
-    io::{Cursor, Read},
+    fs::{File, create_dir_all},
+    io::{self, Cursor, Read},
     path::{Path, PathBuf},
 };
 use zip::ZipArchive;
@@ -437,6 +438,7 @@ impl YomitanWriter {
     pub fn import_dictionary_zip_file<Z, Callback>(
         &mut self,
         zip_file: &Z,
+        asset_dir: &PathBuf,
         lang: &str,
         progress_callback: Callback,
     ) -> anyhow::Result<YomitanZipImportResult, CJDicError>
@@ -452,6 +454,27 @@ impl YomitanWriter {
         let cursor = Cursor::new(zip_file.bytes()?);
         let mut archive = ZipArchive::new(cursor)?;
 
+        for i in 0..archive.len() {
+            // Metadata — borrow ends before by_index_raw
+            let (name, is_dir) = {
+                let f = archive.by_index(i)?;
+                (f.name().to_owned(), f.is_dir())
+            };
+
+            if !name.starts_with("assets") || is_dir {
+                continue;
+            }
+
+            let out_path = asset_dir.join(name);
+            if let Some(parent) = out_path.parent() {
+                create_dir_all(parent)?;
+            }
+
+            let mut entry = archive.by_index(i)?;
+            let mut out = File::create(&out_path)?;
+            io::copy(&mut entry, &mut out)?; // writes plain bytes
+        }
+
         let index_file = match archive.by_name("index.json") {
             Ok(mut f) => {
                 let mut s = String::new();
diff --git a/src-core/src/service.rs b/src-core/src/service.rs
index 7a7de9f..13fe112 100644
--- a/src-core/src/service.rs
+++ b/src-core/src/service.rs
@@ -1,6 +1,6 @@
 use std::{
     collections::{HashMap, HashSet},
-    path::Path,
+    path::{Path, PathBuf},
 };
 
 use rusqlite::{Connection, params_from_iter};
@@ -166,6 +166,7 @@ impl AppService {
     pub fn load_yomitan_zip_dir<Z, LoadCallback, ImportCallback>(
         &self,
         zip_dir: Vec<Z>,
+        asset_dir: &PathBuf,
         lang: &str,
         load_callback: LoadCallback,
         import_callback: ImportCallback,
@@ -246,7 +247,13 @@ impl AppService {
             let mut writer = YomitanWriter::new(self.db.dir.clone())?;
             for z in new_dicts.clone().iter() {
                 if let Some(zip_file) = dir_zip_map.get(z) {
-                    Self::import_yomitan_zip_file(&mut writer, *zip_file, lang, &import_callback)?;
+                    Self::import_yomitan_zip_file(
+                        &mut writer,
+                        *zip_file,
+                        &asset_dir,
+                        lang,
+                        &import_callback,
+                    )?;
                 }
             }
         }
@@ -268,6 +275,7 @@ impl AppService {
     pub fn import_yomitan_zip_file<Z, Callback>(
         writer: &mut YomitanWriter, // Reuse existing connection
         zip_file: &Z,
+        asset_dir: &PathBuf,
         lang: &str,
         progress_callback: Callback,
     ) -> Result<YomitanZipImportResult, CJDicError>
@@ -275,7 +283,7 @@ impl AppService {
         Z: ZipSource,
         Callback: Fn(YomitanProgress),
     {
-        Ok(writer.import_dictionary_zip_file(zip_file, lang, progress_callback)?)
+        Ok(writer.import_dictionary_zip_file(zip_file, asset_dir, lang, progress_callback)?)
     }
 
     pub fn remove_yomitan_dictionary(
diff --git a/src-react/public/assets/pixiv-logo.png b/src-react/public/assets/pixiv-logo.png
deleted file mode 100644
index 3e9e457..0000000
Binary files a/src-react/public/assets/pixiv-logo.png and /dev/null differ
diff --git a/src-react/src/components/Glossary.tsx b/src-react/src/components/Glossary.tsx
index 66e538a..21d817b 100644
--- a/src-react/src/components/Glossary.tsx
+++ b/src-react/src/components/Glossary.tsx
@@ -2,10 +2,12 @@ import { createElement as h } from "react";
 
 export default function Glossary({
   glossary,
+  yomitanURL,
   maxLength,
   onTermClicked,
 }: {
   glossary: any;
+  yomitanURL: string;
   maxLength?: number;
   onTermClicked: (t: string) => void;
 }) {
@@ -29,7 +31,7 @@ export default function Glossary({
 
   // GlossaryImage
   if ("type" in glossary && glossary.type === "image") {
-    return <GlossaryImage {...glossary} />;
+    return <GlossaryImage img={glossary} yomitanURL={yomitanURL} />;
   }
 
   // GlossaryStructuredContent
@@ -38,8 +40,7 @@ export default function Glossary({
     return (
       <StructuredContent
         node={sc.content}
-        maxLength={maxLength}
-        onTermClicked={onTermClicked}
+        {...{ yomitanURL, maxLength, onTermClicked }}
       />
     );
   }
@@ -53,10 +54,10 @@ export default function Glossary({
   return null;
 }
 
-function GlossaryImage(img: any) {
+function GlossaryImage({ img, yomitanURL }: { img: any; yomitanURL: string }) {
   return (
     <img
-      src={img.path}
+      src={`${yomitanURL || ""}/${img.path}`}
       width={img.width}
       height={img.height}
       title={img.title}
@@ -72,10 +73,12 @@ function GlossaryImage(img: any) {
 
 function StructuredContent({
   node,
+  yomitanURL,
   maxLength,
   onTermClicked,
 }: {
   node: any;
+  yomitanURL: string;
   maxLength?: number;
   onTermClicked: (t: string) => void;
 }): any {
@@ -100,8 +103,7 @@ function StructuredContent({
           <StructuredContent
             key={i}
             node={n}
-            maxLength={maxLength}
-            onTermClicked={onTermClicked}
+            {...{ yomitanURL, maxLength, onTermClicked }}
           />
         ))}
       </>
@@ -118,7 +120,7 @@ function StructuredContent({
 
   // Image
   if (tag === "img") {
-    return <GlossaryImage {...node} />;
+    return <GlossaryImage img={node} yomitanURL={yomitanURL} />;
   }
 
   // Link
@@ -145,8 +147,7 @@ function StructuredContent({
         {content ? (
           <StructuredContent
             node={content}
-            maxLength={maxLength}
-            onTermClicked={onTermClicked}
+            {...{ yomitanURL, maxLength, onTermClicked }}
           />
         ) : null}
       </a>
@@ -159,6 +160,11 @@ function StructuredContent({
   return h(
     tag,
     { style: block.style, title: block.title, open: block.open },
-    StructuredContent({ node: block.content, maxLength, onTermClicked }),
+    StructuredContent({
+      node: block.content,
+      yomitanURL,
+      maxLength,
+      onTermClicked,
+    }),
   );
 }
diff --git a/src-react/src/components/LoadingDialog.tsx b/src-react/src/components/LoadingDialog.tsx
index bb78513..5bae483 100644
--- a/src-react/src/components/LoadingDialog.tsx
+++ b/src-react/src/components/LoadingDialog.tsx
@@ -79,9 +79,9 @@ function LoadingDialog() {
       const dicts: YomitanDownloadDictEntry[] = [];
 
       if (lang === "ja") {
-        const filename = "Pixiv.zip";
-        const filepath = `yomitan/${lang}/${filename}`;
-        const existing = existing_dicts.find((d) => d.bundle_name === filename);
+        var filename = "PixivLight.zip";
+        var filepath = `yomitan/${lang}/${filename}`;
+        var existing = existing_dicts.find((d) => d.bundle_name === filename);
         if (!existing) {
           // Maybe check revision update
           dicts.push({
@@ -89,7 +89,7 @@ function LoadingDialog() {
             url:
               (await ghLatestReleaseURL(
                 "MarvNC/pixiv-yomitan",
-                /^Pixiv_.+\.zip$/,
+                /^PixivLight_.+\.zip$/,
               ).catch((e) => {
                 console.error(e);
                 return "";
diff --git a/src-react/src/pages/SearchPage.tsx b/src-react/src/pages/SearchPage.tsx
index f0a0aaf..9bed28e 100644
--- a/src-react/src/pages/SearchPage.tsx
+++ b/src-react/src/pages/SearchPage.tsx
@@ -18,7 +18,8 @@ import {
   Stack,
   Switch,
 } from "@chakra-ui/react";
-import { invoke } from "@tauri-apps/api/core";
+import { convertFileSrc, invoke } from "@tauri-apps/api/core";
+import { appDataDir, join } from "@tauri-apps/api/path";
 import { readText } from "@tauri-apps/plugin-clipboard-manager";
 
 import Glossary from "../components/Glossary";
@@ -54,6 +55,13 @@ function SearchPage() {
   const [furigana, set_furigana] = useState("");
   const [isAutoKana, set_isAutoKana] = useState(true);
   const [isScrollEnd, set_isScrollEnd] = useState(false);
+  const [yomitanURL, set_yomitanURL] = useState("");
+
+  useEffect(() => {
+    (async () => {
+      set_yomitanURL(convertFileSrc(await join(await appDataDir(), "yomitan")));
+    })();
+  });
 
   const nSearch = useRef(0);
   const searchboxRef = useRef<HTMLInputElement | null>(null);
@@ -69,6 +77,9 @@ function SearchPage() {
 
     const intervalId = setInterval(async () => {
       const newText = (await readText()).replace(/ /g, "");
+      if (!/[\p{sc=Han}\p{scx=Hiragana}\p{scx=Katakana}〆]/u.test(newText)) {
+        return;
+      }
 
       set_clipboardText((clipboardText) => {
         if (clipboardText !== newText) {
@@ -411,7 +422,7 @@ function SearchPage() {
                         <Glossary
                           key={i}
                           glossary={g}
-                          onTermClicked={onTermClicked}
+                          {...{ yomitanURL, onTermClicked }}
                         />
                       ))}
                     </div>
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 715f279..f61e187 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -18,7 +18,7 @@ crate-type = ["staticlib", "cdylib", "rlib"]
 tauri-build = { version = "2", features = [] }
 
 [dependencies]
-tauri = { version = "2", features = [] }
+tauri = { version = "2", features = ["protocol-asset"] }
 tauri-plugin-opener = "2"
 cjdic2-core = { path = "../src-core" }
 tauri-plugin-http = "2"
diff --git a/src-tauri/src/command.rs b/src-tauri/src/command.rs
index 18bf7d7..9e0150c 100644
--- a/src-tauri/src/command.rs
+++ b/src-tauri/src/command.rs
@@ -34,38 +34,36 @@ pub async fn init_yomitan(
     lang: String,
     state: tauri::State<'_, AppService>,
 ) -> Result<(), CJDicError> {
-    let app_dir = app
+    let data_dir = app
         .path()
         .app_data_dir()
         .map_err(|e| CJDicError::Error(e.to_string()))?;
 
+    let yomitan_assets = data_dir.join("yomitan");
+
     for d in dicts.iter().clone() {
-        let zip_path = app_dir.join(&d.filepath);
+        let zip_path = data_dir.join(&d.filepath);
         if zip_path.exists() && File::open(zip_path).is_ok_and(|f| ZipArchive::new(f).is_ok()) {
             continue;
         }
 
-        download_url_local(
-            d.url.clone(),
-            app_dir.clone(),
-            d.filepath.clone(),
-            |progress| {
-                app.emit("download-url-progress", progress).unwrap();
-            },
-        )
+        download_url_local(&d.url, &data_dir.clone(), &d.filepath, |progress| {
+            app.emit("download-url-progress", progress).unwrap();
+        })
         .await
         .map_err(|e| CJDicError::Error(e.to_string()))?;
     }
 
     let zip_files: Vec<PathBuf> = dicts
         .into_iter()
-        .map(|d| app_dir.join(&d.filepath))
+        .map(|d| data_dir.join(&d.filepath))
         .collect();
 
     let update_count = Cell::new(0usize);
 
     state.load_yomitan_zip_dir(
         zip_files,
+        &yomitan_assets,
         lang.as_str(),
         |r| {
             update_count.set(update_count.get() + r.new_dicts.len() + r.to_be_removed_dicts.len());
@@ -97,6 +95,9 @@ pub async fn import_yomitan_dict(
         .path()
         .app_data_dir()
         .map_err(|e| CJDicError::Error(e.to_string()))?;
+
+    let yomitan_assets = data_dir.join("yomitan");
+
     data_dir.push("yomitan");
     data_dir.push(lang);
     data_dir.push(bundle_name);
@@ -104,7 +105,7 @@ pub async fn import_yomitan_dict(
     let mut writer = state.get_yomitan_writer(|r| {
         app.emit("yomitan-import-progress", r).unwrap();
     })?;
-    AppService::import_yomitan_zip_file(&mut writer, &data_dir, lang, |r| {
+    AppService::import_yomitan_zip_file(&mut writer, &data_dir, &yomitan_assets, lang, |r| {
         app.emit("yomitan-import-progress", r).unwrap();
     })
 }
@@ -151,16 +152,16 @@ struct DownloadProgress {
 }
 
 async fn download_url_local<Callback>(
-    url: String,
-    data_dir: PathBuf,
-    filepath: String,
+    url: &str,
+    data_dir: &PathBuf,
+    filepath: &str,
     callback: Callback,
 ) -> Result<bool, CJDicError>
 where
     Callback: Fn(DownloadProgress),
 {
     let client = Client::new();
-    let file_pf = data_dir.join(filepath.as_str());
+    let file_pf = data_dir.join(filepath);
 
     let temp_pf = data_dir.join(format!("{}.dl-tmp", filepath));
     let temp_path = temp_pf.as_path();
@@ -170,7 +171,7 @@ where
         .map(|m| m.len())
         .unwrap_or(0);
 
-    let mut request = client.get(url.as_str());
+    let mut request = client.get(url);
     // Request only the remaining bytes
     if existing_size > 0 {
         request = request.header("Range", format!("bytes={}-", existing_size));
@@ -208,8 +209,8 @@ where
             downloaded += chunk.len() as u64;
 
             callback(DownloadProgress {
-                url: url.clone(),
-                filepath: filepath.clone(),
+                url: url.to_owned(),
+                filepath: filepath.to_owned(),
                 content_length,
                 downloaded,
             });
@@ -235,14 +236,10 @@ where
 }
 
 #[tauri::command]
-pub async fn download_url(
-    app: AppHandle,
-    url: String,
-    filepath: String,
-) -> Result<bool, CJDicError> {
+pub async fn download_url(app: AppHandle, url: &str, filepath: &str) -> Result<bool, CJDicError> {
     download_url_local(
         url,
-        app.path()
+        &app.path()
             .app_data_dir()
             .map_err(|e| CJDicError::Error(e.to_string()))?,
         filepath,
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 9103d80..6e44f1d 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -19,7 +19,11 @@
       }
     ],
     "security": {
-      "csp": null
+      "csp": "default-src 'self' ipc: http://ipc.localhost; img-src 'self' asset: http://asset.localhost",
+      "assetProtocol": {
+        "enable": true,
+        "scope": ["$APPDATA/yomitan/**"]
+      }
     }
   },
   "bundle": {