diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/MmkvManager.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/MmkvManager.kt
index 8a9ea0cb..c33b9ebd 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/MmkvManager.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/MmkvManager.kt
@@ -114,9 +114,15 @@ object MmkvManager {
      */
     fun decodeAllServerList(): MutableList<String> {
         val allServers = mutableListOf<String>()
+        val subsList = decodeSubsList()
 
-        // Add servers from all subscriptions (including default subscription)
-        decodeSubsList().forEach { guid ->
+        // If DEFAULT_SUBSCRIPTION_ID is not in the subscriptions list, add its servers
+        if (!subsList.contains(DEFAULT_SUBSCRIPTION_ID)) {
+            allServers.addAll(decodeServerList(DEFAULT_SUBSCRIPTION_ID))
+        }
+
+        // Add servers from all subscriptions
+        subsList.forEach { guid ->
             allServers.addAll(decodeServerList(guid))
         }
 
@@ -381,11 +387,6 @@ object MmkvManager {
      * @param subid The subscription ID.
      */
     fun removeSubscription(subid: String) {
-        // Protect default subscription from being deleted
-        if (subid == DEFAULT_SUBSCRIPTION_ID) {
-            return
-        }
-
         subStorage.remove(subid)
         val subsList = decodeSubsList()
         subsList.remove(subid)
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/SettingsManager.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/SettingsManager.kt
index 52358a07..0acb5f45 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/SettingsManager.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/SettingsManager.kt
@@ -25,6 +25,7 @@ import com.v2ray.ang.handler.MmkvManager.decodeServerConfig
 import com.v2ray.ang.handler.MmkvManager.decodeSubsList
 import com.v2ray.ang.handler.MmkvManager.decodeSubscription
 import com.v2ray.ang.handler.MmkvManager.encodeSubscription
+import com.v2ray.ang.handler.MmkvManager.removeSubscription
 import com.v2ray.ang.util.JsonUtil
 import com.v2ray.ang.util.Utils
 import java.io.File
@@ -36,7 +37,7 @@ object SettingsManager {
 
     fun initApp(context: Context) {
         ensureDefaultSettings()
-        ensureDefaultSubscription()
+        //ensureDefaultSubscription()
         initRoutingRulesets(context)
         migrateServerListToSubscriptions()
         migrateHysteria2PinSHA256()
@@ -240,6 +241,33 @@ object SettingsManager {
             .firstOrNull { it.remarks == remarks }
     }
 
+    /**
+     * Removes the subscription.
+     * If there are no remaining subscriptions,
+     * it creates a new default subscription to ensure that ungroup
+     **/
+    fun removeSubscriptionWithDefault(subid: String) {
+//        val subsList = decodeSubsList()
+//        if (subsList.size == 1 && subsList.first() == DEFAULT_SUBSCRIPTION_ID) {
+//            Log.i(ANG_PACKAGE,"Attempted to remove the only existing default subscription, operation ignored.")
+//            return
+//        }
+
+        // Remove the subscription
+        removeSubscription(subid)
+
+        // After removal, check if there are any subscriptions left. If not, create a default subscription.
+        val subsList2 = decodeSubsList()
+        if (subsList2.isNotEmpty()) {
+            return
+        }
+
+        val defaultSub = SubscriptionItem(
+            remarks = "Default",
+        )
+        encodeSubscription(DEFAULT_SUBSCRIPTION_ID, defaultSub)
+    }
+
     /**
      * Get the SOCKS port.
      * @return The SOCKS port.
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubEditActivity.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubEditActivity.kt
index 5c7db83e..c6bd3870 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubEditActivity.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubEditActivity.kt
@@ -14,6 +14,7 @@ import com.v2ray.ang.extension.toast
 import com.v2ray.ang.extension.toastSuccess
 import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.handler.SettingsChangeManager
+import com.v2ray.ang.handler.SettingsManager
 import com.v2ray.ang.util.Utils
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -118,7 +119,7 @@ class SubEditActivity : BaseActivity() {
                 AlertDialog.Builder(this).setMessage(R.string.del_config_comfirm)
                     .setPositiveButton(android.R.string.ok) { _, _ ->
                         lifecycleScope.launch(Dispatchers.IO) {
-                            MmkvManager.removeSubscription(editSubId)
+                            SettingsManager.removeSubscriptionWithDefault(editSubId)
                             launch(Dispatchers.Main) {
                                 finish()
                             }
@@ -130,7 +131,7 @@ class SubEditActivity : BaseActivity() {
                     .show()
             } else {
                 lifecycleScope.launch(Dispatchers.IO) {
-                    MmkvManager.removeSubscription(editSubId)
+                    SettingsManager.removeSubscriptionWithDefault(editSubId)
                     launch(Dispatchers.Main) {
                         finish()
                     }
@@ -145,10 +146,6 @@ class SubEditActivity : BaseActivity() {
         del_config = menu.findItem(R.id.del_config)
         save_config = menu.findItem(R.id.save_config)
 
-        if (editSubId.isEmpty() || editSubId == AppConfig.DEFAULT_SUBSCRIPTION_ID) {
-            del_config?.isVisible = false
-        }
-
         return super.onCreateOptionsMenu(menu)
     }
 
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubSettingRecyclerAdapter.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubSettingRecyclerAdapter.kt
index 164fba6a..311c3b17 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubSettingRecyclerAdapter.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SubSettingRecyclerAdapter.kt
@@ -39,7 +39,6 @@ class SubSettingRecyclerAdapter(
         holder.itemSubSettingBinding.layoutRemove.setOnClickListener {
             adapterListener?.onRemove(subId, position)
         }
-        holder.itemSubSettingBinding.layoutRemove.isVisible = subId != AppConfig.DEFAULT_SUBSCRIPTION_ID
 
         holder.itemSubSettingBinding.chkEnable.setOnCheckedChangeListener { it, isChecked ->
             if (!it.isPressed) return@setOnCheckedChangeListener
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt
index 3f2042da..0f56d56a 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt
@@ -252,9 +252,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
         }
 
         val groups = mutableListOf<GroupMapItem>()
-        if (subscriptions.size > 1
-            && MmkvManager.decodeSettingsBool(AppConfig.PREF_GROUP_ALL_DISPLAY)
-        ) {
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_GROUP_ALL_DISPLAY)) {
             groups.add(
                 GroupMapItem(
                     id = "",
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SubscriptionsViewModel.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SubscriptionsViewModel.kt
index a8c720ab..b182f1d8 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SubscriptionsViewModel.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SubscriptionsViewModel.kt
@@ -21,7 +21,7 @@ class SubscriptionsViewModel : ViewModel() {
     fun remove(subId: String): Boolean {
         val changed = subscriptions.removeAll { it.guid == subId }
         if (changed) {
-            MmkvManager.removeSubscription(subId)
+            SettingsManager.removeSubscriptionWithDefault(subId)
             SettingsChangeManager.makeSetupGroupTab()
         }
         return changed