diff --git a/CloudServer/public/generator.html b/CloudServer/public/generator.html
index b1fa171..b762e6e 100644
--- a/CloudServer/public/generator.html
+++ b/CloudServer/public/generator.html
@@ -566,8 +566,8 @@
                     </div>
                     
                     <div class="form-group">
-                        <label>English Station Name (e.g., Beijing)</label>
-                        <input type="text" id="en-text" placeholder="Enter English Name">
+                        <label>Japanese Station Name (e.g., ちば)</label>
+                        <input type="text" id="en-text" placeholder="输入日文站名">
                     </div>
                     
                     <button class="btn btn-primary" id="btn-generate" onclick="generateAudio()">
@@ -584,7 +584,7 @@
                             </div>
                         </div>
                         <div class="form-group">
-                            <label>English Preview</label>
+                            <label>Japanese Preview</label>
                             <div class="audio-preview">
                                 <audio id="en-audio" controls></audio>
                             </div>
@@ -605,8 +605,8 @@
                 <!-- Batch Generation View -->
                 <div id="view-batch" style="display: none; flex-direction: column; gap: 20px;">
                     <div class="form-group" id="batch-input-group">
-                        <label>Paste Data (Format: ID &lt;Tab&gt; Chinese &lt;Tab&gt; English)</label>
-                        <textarea id="batch-input" rows="8" placeholder="01-01&#9;千叶&#9;Chiba&#10;CK-01&#9;沼津&#9;Numazu" style="resize: vertical; font-family: var(--font-mono); white-space: pre;"></textarea>
+                        <label>Paste Data (Format: ID &lt;Tab&gt; Chinese &lt;Tab&gt; Japanese)</label>
+                        <textarea id="batch-input" rows="8" placeholder="01-01&#9;千叶&#9;ちば&#10;CK-01&#9;沼津&#9;ぬまづ" style="resize: vertical; font-family: var(--font-mono); white-space: pre;"></textarea>
                         <button class="btn btn-primary" id="btn-batch-preview" onclick="previewBatch()" style="margin-top: 10px;">
                             <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"></path><circle cx="12" cy="12" r="3"></circle></svg>
                             Preview Tasks
@@ -721,10 +721,10 @@
     <script>
         const TTS_MODEL = "s2.1-pro-free";
         const ZH_REFERENCE_ID = "0aee9f0f5683480d987c9e3c5d2de04c";
-        const EN_REFERENCE_ID = "38985e545cff41b79c11c32b0196c9a0";
+        const JA_REFERENCE_ID = "38985e545cff41b79c11c32b0196c9a0";
 
         let zhTempFile = null;
-        let enTempFile = null;
+        let jaTempFile = null;
         
         let listData = [];
         let availableFiles = [];
@@ -829,11 +829,11 @@
             return data;
         }
 
-        async function _importSingleAudio(code, zhTemp, enTemp) {
+        async function _importSingleAudio(code, zhTemp, jaTemp) {
             const res = await fetch('/api/tts/import', {
                 method: 'POST',
                 headers: {'Content-Type': 'application/json'},
-                body: JSON.stringify({ stationCode: code, zhTemp, enTemp })
+                body: JSON.stringify({ stationCode: code, zhTemp, jaTemp })
             });
             const data = await res.json();
             if (!data.success) throw new Error(data.message);
@@ -878,9 +878,9 @@
             batchTasks.forEach((task, index) => {
                 // Initialize temp vars
                 task.zhTempName = null;
-                task.enTempName = null;
+                task.jaTempName = null;
                 task.zhUrl = null;
-                task.enUrl = null;
+                task.jaUrl = null;
 
                 const item = document.createElement('div');
                 item.className = 'edit-file-item';
@@ -892,7 +892,7 @@
                     <div style="display:flex; justify-content:space-between; align-items:flex-start;">
                         <div style="display:flex; flex-direction:column; gap:2px;">
                             <span style="font-weight:600; color:var(--accent)">${task.code}</span>
-                            <span class="edit-file-name" style="color:var(--text-muted)">ZH: ${task.zh} | EN: ${task.en}</span>
+                            <span class="edit-file-name" style="color:var(--text-muted)">ZH: ${task.zh} | JA: ${task.en}</span>
                         </div>
                         <span id="batch-status-span-${index}" style="font-size:0.8rem; color:var(--text-muted)">Pending</span>
                     </div>
@@ -902,8 +902,8 @@
                             <audio id="batch-audio-zh-${index}" controls style="height:24px;"></audio>
                         </div>
                         <div style="display:flex; align-items:center; gap:8px;">
-                            <span style="font-size:0.75rem; color:var(--text-muted); width:20px;">EN</span>
-                            <audio id="batch-audio-en-${index}" controls style="height:24px;"></audio>
+                            <span style="font-size:0.75rem; color:var(--text-muted); width:20px;">JA</span>
+                            <audio id="batch-audio-ja-${index}" controls style="height:24px;"></audio>
                         </div>
                     </div>
                 `;
@@ -957,14 +957,14 @@
                 while (retryCount < 2 && !success) {
                     try {
                         // 1. Generate ZH
-                        const zhData = await _generateSingleTTS(task.zh, ZH_MODEL);
-                        // 2. Generate EN
-                        const enData = await _generateSingleTTS(task.en, EN_MODEL);
+                        const zhData = await _generateSingleTTS(task.zh, ZH_REFERENCE_ID);
+                        // 2. Generate JA
+                        const jaData = await _generateSingleTTS(task.en, JA_REFERENCE_ID);
                         
                         task.zhTempName = zhData.tempName;
-                        task.enTempName = enData.tempName;
+                        task.jaTempName = jaData.jaTempName || jaData.enTempName || jaData.tempName;
                         task.zhUrl = zhData.url;
-                        task.enUrl = enData.url;
+                        task.jaUrl = jaData.jaUrl || jaData.enUrl || jaData.url;
                         
                         success = true;
                     } catch (e) {
@@ -987,7 +987,7 @@
                     const previewDiv = document.getElementById(`batch-audio-preview-${i}`);
                     previewDiv.style.display = 'flex';
                     document.getElementById(`batch-audio-zh-${i}`).src = task.zhUrl;
-                    document.getElementById(`batch-audio-en-${i}`).src = task.enUrl;
+                    document.getElementById(`batch-audio-ja-${i}`).src = task.jaUrl;
                     
                     successCount++;
                 } else {
@@ -1031,7 +1031,7 @@
             
             for (let i = 0; i < batchTasks.length; i++) {
                 const task = batchTasks[i];
-                if (!task.zhTempName || !task.enTempName) continue; // Skip failed ones
+                if (!task.zhTempName || !task.jaTempName) continue; // Skip failed ones
                 
                 // Replace slashes with dashes to ensure filesystem compatibility
                 if (task.code.includes('/')) {
@@ -1044,10 +1044,10 @@
                 statusSpan.style.color = 'var(--warning)';
                 
                 try {
-                    await _importSingleAudio(task.code, task.zhTempName, task.enTempName);
+                    await _importSingleAudio(task.code, task.zhTempName, task.jaTempName);
                     
                     // Update listData
-                    const filesStr = `ch-${task.code}.wav,en-${task.code}.wav`;
+                    const filesStr = `ch-${task.code}.wav,ja-${task.code}.wav`;
                     const existingIndex = listData.findIndex(item => item.code === task.code);
                     if (existingIndex >= 0) {
                         listData[existingIndex].files = filesStr.split(',');
@@ -1088,10 +1088,10 @@
 
         async function generateAudio() {
             const zhText = document.getElementById('zh-text').value.trim();
-            const enText = document.getElementById('en-text').value.trim();
+            const jaText = document.getElementById('en-text').value.trim();
             
-            if (!zhText || !enText) {
-                showToast("Error", "Please enter both Chinese and English names");
+            if (!zhText || !jaText) {
+                showToast("Error", "Please enter both Chinese and Japanese names");
                 return;
             }
 
@@ -1119,30 +1119,30 @@
                 const dataZh = await resZh.json();
                 if (!dataZh.success) throw new Error("ZH TTS failed: " + dataZh.message);
                 
-                status.textContent = "Generating English audio...";
+                status.textContent = "Generating Japanese audio...";
                 
-                // Generate English via Server-Side Proxy
-                const resEn = await fetch('/api/tts/generate', {
+                // Generate Japanese via Server-Side Proxy
+                const resJa = await fetch('/api/tts/generate', {
                     method: 'POST',
                     headers: {
                         'Content-Type': 'application/json'
                     },
                     body: JSON.stringify({
-                        text: enText,
-                        reference_id: EN_REFERENCE_ID,
+                        text: jaText,
+                        reference_id: JA_REFERENCE_ID,
                         model: TTS_MODEL
                     })
                 });
                 
-                const dataEn = await resEn.json();
-                if (!dataEn.success) throw new Error("EN TTS failed: " + dataEn.message);
+                const dataJa = await resJa.json();
+                if (!dataJa.success) throw new Error("JA TTS failed: " + dataJa.message);
 
                 // Success
                 zhTempFile = dataZh.tempName;
-                enTempFile = dataEn.tempName;
+                jaTempFile = dataJa.jaTempName || dataJa.enTempName || dataJa.tempName;
                 
                 document.getElementById('zh-audio').src = dataZh.url;
-                document.getElementById('en-audio').src = dataEn.url;
+                document.getElementById('en-audio').src = dataJa.jaUrl || dataJa.enUrl || dataJa.url;
                 
                 document.getElementById('preview-section').style.display = 'block';
                 status.textContent = "Generation complete!";
@@ -1170,7 +1170,7 @@
                 code = code.replace(/\//g, '-');
             }
 
-            if (!zhTempFile || !enTempFile) {
+            if (!zhTempFile || !jaTempFile) {
                 showToast("Error", "No audio generated to import");
                 return;
             }
@@ -1186,7 +1186,7 @@
                     body: JSON.stringify({
                         stationCode: code,
                         zhTemp: zhTempFile,
-                        enTemp: enTempFile
+                        jaTemp: jaTempFile
                     })
                 });
                 
@@ -1196,7 +1196,7 @@
                 showToast("Success", "Files imported to Station folder!");
                 
                 // Automatically add/update to listData if generated via this panel
-                const filesStr = `ch-${code}.wav,en-${code}.wav`;
+                const filesStr = `ch-${code}.wav,ja-${code}.wav`;
                 const existingIndex = listData.findIndex(item => item.code === code);
                 if (existingIndex >= 0) {
                     listData[existingIndex].files = filesStr.split(',');
@@ -1209,7 +1209,7 @@
 
                 // Reset
                 zhTempFile = null;
-                enTempFile = null;
+                jaTempFile = null;
                 document.getElementById('preview-section').style.display = 'none';
                 document.getElementById('gen-status').textContent = "";
                 document.getElementById('zh-text').value = "";
diff --git a/CloudServer/server.js b/CloudServer/server.js
index d72e508..f0c2fc2 100644
--- a/CloudServer/server.js
+++ b/CloudServer/server.js
@@ -18,7 +18,7 @@ const wss = new WebSocket.Server({ server });
 const PORT = Number(process.env.PORT || '8999');
 const DEFAULT_TTS_MODEL = process.env.TTS_MODEL || 's2.1-pro-free';
 const DEFAULT_ZH_REFERENCE_ID = process.env.ZH_REFERENCE_ID || '0aee9f0f5683480d987c9e3c5d2de04c';
-const DEFAULT_EN_REFERENCE_ID = process.env.EN_REFERENCE_ID || '38985e545cff41b79c11c32b0196c9a0';
+const DEFAULT_JA_REFERENCE_ID = process.env.JA_REFERENCE_ID || process.env.EN_REFERENCE_ID || '38985e545cff41b79c11c32b0196c9a0';
 
 const HLS_ENABLE = process.env.HLS_ENABLE !== '0';
 const HLS_STREAM_MODE = (process.env.HLS_STREAM_MODE || 'event').toLowerCase();
@@ -2375,20 +2375,23 @@ app.post('/api/tts/upload_temp', upload.fields([{ name: 'zhAudio', maxCount: 1 }
         
         // Rename to secure temp names
         const zhTempName = `temp_zh_${Date.now()}_${Math.floor(Math.random() * 1000)}.wav`;
-        const enTempName = `temp_en_${Date.now()}_${Math.floor(Math.random() * 1000)}.wav`;
+        const jaTempName = `temp_ja_${Date.now()}_${Math.floor(Math.random() * 1000)}.wav`;
         
         const zhTempPath = path.join(uploadDir, zhTempName);
-        const enTempPath = path.join(uploadDir, enTempName);
+        const jaTempPath = path.join(uploadDir, jaTempName);
         
         fs.renameSync(zhFile.path, zhTempPath);
-        fs.renameSync(enFile.path, enTempPath);
+        fs.renameSync(enFile.path, jaTempPath);
         
         res.json({
             success: true,
             zhTempName,
-            enTempName,
+            jaTempName,
             zhUrl: `/uploads/${zhTempName}`,
-            enUrl: `/uploads/${enTempName}`
+            jaUrl: `/uploads/${jaTempName}`,
+            // Keep old keys temporarily so cached frontends do not break.
+            enTempName: jaTempName,
+            enUrl: `/uploads/${jaTempName}`
         });
     } catch (e) {
         res.status(500).json({ success: false, message: e.message });
@@ -2397,23 +2400,25 @@ app.post('/api/tts/upload_temp', upload.fields([{ name: 'zhAudio', maxCount: 1 }
 
 // Import TTS temp files to station folder
 app.post('/api/tts/import', express.json(), (req, res) => {
-    const { stationCode, zhTemp, enTemp } = req.body;
-    if (!stationCode || !zhTemp || !enTemp) return res.status(400).json({ success: false, message: 'Missing parameters' });
+    const stationCode = String(req.body?.stationCode || '').trim();
+    const zhTemp = String(req.body?.zhTemp || '').trim();
+    const jaTemp = String(req.body?.jaTemp || req.body?.enTemp || '').trim();
+    if (!stationCode || !zhTemp || !jaTemp) return res.status(400).json({ success: false, message: 'Missing parameters' });
     
     const zhSource = path.join(uploadDir, zhTemp);
-    const enSource = path.join(uploadDir, enTemp);
+    const jaSource = path.join(uploadDir, jaTemp);
     const safeStationCode = String(stationCode).replace(/\//g, '-');
     const zhDest = path.join(audioStationDir, `ch-${safeStationCode}.wav`);
-    const enDest = path.join(audioStationDir, `en-${safeStationCode}.wav`);
+    const jaDest = path.join(audioStationDir, `ja-${safeStationCode}.wav`);
     
     try {
         if (fs.existsSync(zhSource)) {
             fs.copyFileSync(zhSource, zhDest);
             fs.unlinkSync(zhSource);
         }
-        if (fs.existsSync(enSource)) {
-            fs.copyFileSync(enSource, enDest);
-            fs.unlinkSync(enSource);
+        if (fs.existsSync(jaSource)) {
+            fs.copyFileSync(jaSource, jaDest);
+            fs.unlinkSync(jaSource);
         }
         log('SUCCESS', `Imported generated audio for station ${stationCode}`);
         res.json({ success: true });