diff --git a/assets/translations/en-US.json b/assets/translations/en-US.json
index 7b67205..b2c7ee0 100644
--- a/assets/translations/en-US.json
+++ b/assets/translations/en-US.json
@@ -671,5 +671,8 @@
   "attachmentBillingDiscount": "Free space",
   "attachmentBillingRatio": "Usage",
   "attachmentBillingHint": "Sliding Window Pricing®\nFees will only apply if the size of the file uploaded within 24 hours exceeds the free space.",
-  "postThumbnail": "Post Thumbnail"
+  "postThumbnail": "Post Thumbnail",
+  "accountRealms": "Realms",
+  "postInGlobal": "Global",
+  "postInGlobalDescription": "Do not link this post with any realm."
 }
diff --git a/assets/translations/zh-CN.json b/assets/translations/zh-CN.json
index 1e8f810..ce0e30b 100644
--- a/assets/translations/zh-CN.json
+++ b/assets/translations/zh-CN.json
@@ -669,5 +669,8 @@
   "attachmentBillingUploaded": "已占用的字节数",
   "attachmentBillingDiscount": "免费的字节数",
   "attachmentBillingHint": "滑动窗口计价®\n在24小时内上传的文件大小超出免费空间才会适用扣费。",
-  "postThumbnail": "帖子缩略图"
+  "postThumbnail": "帖子缩略图",
+  "accountRealms": "领域",
+  "postInGlobal": "全站",
+  "postInGlobalDescription": "不关联此帖子与任何领域。"
 }
diff --git a/lib/controllers/post_write_controller.dart b/lib/controllers/post_write_controller.dart
index d55f25a..64da090 100644
--- a/lib/controllers/post_write_controller.dart
+++ b/lib/controllers/post_write_controller.dart
@@ -18,6 +18,7 @@ import 'package:surface/providers/sn_network.dart';
 import 'package:surface/types/attachment.dart';
 import 'package:surface/types/poll.dart';
 import 'package:surface/types/post.dart';
+import 'package:surface/types/realm.dart';
 import 'package:surface/widgets/dialog.dart';
 import 'package:surface/widgets/universal_image.dart';
 import 'package:video_compress/video_compress.dart';
@@ -197,6 +198,7 @@ class PostWriteController extends ChangeNotifier {
   bool isLoading = false, isBusy = false;
   double? progress;
 
+  SnRealm? realm;
   SnPublisher? publisher;
   SnPost? editingPost, repostingPost, replyingPost;
 
@@ -625,6 +627,11 @@ class PostWriteController extends ChangeNotifier {
     notifyListeners();
   }
 
+  void setRealm(SnRealm? value) {
+    realm = value;
+    notifyListeners();
+  }
+
   void setProgress(double? value) {
     progress = value;
     _temporaryPlanSave();
diff --git a/lib/main.dart b/lib/main.dart
index a3f0396..e359e43 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -31,6 +31,7 @@ import 'package:surface/providers/post.dart';
 import 'package:surface/providers/relationship.dart';
 import 'package:surface/providers/sn_attachment.dart';
 import 'package:surface/providers/sn_network.dart';
+import 'package:surface/providers/sn_realm.dart';
 import 'package:surface/providers/sn_sticker.dart';
 import 'package:surface/providers/special_day.dart';
 import 'package:surface/providers/theme.dart';
@@ -159,6 +160,7 @@ class SolianApp extends StatelessWidget {
             Provider(create: (ctx) => SnRelationshipProvider(ctx)),
             Provider(create: (ctx) => SnLinkPreviewProvider(ctx)),
             Provider(create: (ctx) => SnStickerProvider(ctx)),
+            Provider(create: (ctx) => SnRealmProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => UserProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => WebSocketProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => NotificationProvider(ctx)),
diff --git a/lib/providers/sn_realm.dart b/lib/providers/sn_realm.dart
new file mode 100644
index 0000000..09e438a
--- /dev/null
+++ b/lib/providers/sn_realm.dart
@@ -0,0 +1,26 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:surface/providers/sn_network.dart';
+import 'package:surface/types/realm.dart';
+
+class SnRealmProvider {
+  late final SnNetworkProvider _sn;
+
+  SnRealmProvider(BuildContext context) {
+    _sn = context.read<SnNetworkProvider>();
+  }
+
+  Future<List<SnRealm>> listAvailableRealms() async {
+    final resp = await _sn.client.get('/cgi/id/realms/me/available');
+    final out = List<SnRealm>.from(
+      resp.data?.map((e) => SnRealm.fromJson(e)) ?? [],
+    );
+    return out;
+  }
+
+  Future<SnRealm> getRealm(String alias) async {
+    final resp = await _sn.client.get('/cgi/id/realms/$alias');
+    final out = SnRealm.fromJson(resp.data);
+    return out;
+  }
+}
diff --git a/lib/screens/chat/channel_detail.dart b/lib/screens/chat/channel_detail.dart
index 2bb5aa5..2a57abf 100644
--- a/lib/screens/chat/channel_detail.dart
+++ b/lib/screens/chat/channel_detail.dart
@@ -104,7 +104,7 @@ class _ChannelDetailScreenState extends State<ChannelDetailScreen> {
     try {
       final sn = context.read<SnNetworkProvider>();
       await sn.client.delete(
-        '/cgi/im/channels/${_channel!.realm?.alias ?? 'global'}/${_channel!.alias}/members/me',
+        '/cgi/im/channels/${_channel!.realm?.alias ?? 'global'}/${_channel!.alias}/me',
       );
       if (!mounted) return;
       Navigator.pop(context, false);
diff --git a/lib/screens/post/post_editor.dart b/lib/screens/post/post_editor.dart
index 08d5698..6b17f88 100644
--- a/lib/screens/post/post_editor.dart
+++ b/lib/screens/post/post_editor.dart
@@ -20,6 +20,7 @@ import 'package:surface/providers/sn_attachment.dart';
 import 'package:surface/providers/sn_network.dart';
 import 'package:surface/types/attachment.dart';
 import 'package:surface/types/post.dart';
+import 'package:surface/types/realm.dart';
 import 'package:surface/widgets/account/account_image.dart';
 import 'package:surface/widgets/attachment/attachment_input.dart';
 import 'package:surface/widgets/attachment/attachment_item.dart';
@@ -35,6 +36,8 @@ import 'package:provider/provider.dart';
 import 'package:surface/widgets/post/post_poll_editor.dart';
 import 'package:uuid/uuid.dart';
 
+import '../../providers/sn_realm.dart';
+
 class PostEditorExtra {
   final String? text;
   final String? title;
@@ -79,6 +82,7 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
   bool get _isLoading => _isFetching || _writeController.isLoading;
 
   List<SnPublisher>? _publishers;
+  List<SnRealm>? _realms;
 
   Future<void> _fetchPublishers() async {
     setState(() => _isFetching = true);
@@ -101,6 +105,16 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
     }
   }
 
+  Future<void> _fetchRealms() async {
+    final rels = context.read<SnRealmProvider>();
+    try {
+      _realms = await rels.listAvailableRealms();
+    } catch (err) {
+      if (!mounted) return;
+      context.showErrorDialog(err);
+    }
+  }
+
   void _updateMeta() {
     showModalBottomSheet(
       context: context,
@@ -144,6 +158,19 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
     );
   }
 
+  void _showRealmPopup() {
+    showModalBottomSheet(
+      context: context,
+      builder: (context) => _PostRealmPopup(
+        controller: _writeController,
+        realms: _realms,
+        onUpdate: () {
+          _fetchRealms();
+        },
+      ),
+    );
+  }
+
   void _showPollEditorDialog() async {
     final poll = await showDialog<dynamic>(
       context: context,
@@ -194,6 +221,7 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
     } else {
       _writeController.setMode(widget.mode);
     }
+    _fetchRealms();
     _fetchPublishers();
     _writeController.fetchRelatedPost(
       context,
@@ -335,6 +363,7 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
                         'stories' => _PostStoryEditor(
                             controller: _writeController,
                             onTapPublisher: _showPublisherPopup,
+                            onTapRealm: _showRealmPopup,
                           ),
                         'articles' => _PostArticleEditor(
                             controller: _writeController,
@@ -575,11 +604,65 @@ class _PostPublisherPopup extends StatelessWidget {
   }
 }
 
+class _PostRealmPopup extends StatelessWidget {
+  final PostWriteController controller;
+  final List<SnRealm>? realms;
+  final Function onUpdate;
+
+  const _PostRealmPopup({required this.controller, this.realms, required this.onUpdate});
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Row(
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            const Icon(Symbols.face, size: 24),
+            const Gap(16),
+            Text('accountRealms', style: Theme.of(context).textTheme.titleLarge).tr(),
+          ],
+        ).padding(horizontal: 20, top: 16, bottom: 12),
+        ListTile(
+          leading: const Icon(Symbols.close),
+          title: Text('postInGlobal').tr(),
+          subtitle: Text('postInGlobalDescription').tr(),
+          contentPadding: const EdgeInsets.symmetric(horizontal: 24),
+          onTap: () {
+            controller.setRealm(null);
+            Navigator.pop(context, true);
+          },
+        ),
+        const Divider(height: 1),
+        Expanded(
+          child: ListView.builder(
+            itemCount: realms?.length ?? 0,
+            itemBuilder: (context, idx) {
+              final realm = realms![idx];
+              return ListTile(
+                title: Text(realm.name),
+                subtitle: Text('@${realm.alias}'),
+                leading: AccountImage(content: realm.avatar, radius: 18),
+                onTap: () {
+                  controller.setRealm(realm);
+                  Navigator.pop(context, true);
+                },
+              );
+            },
+          ),
+        ),
+      ],
+    );
+  }
+}
+
 class _PostStoryEditor extends StatelessWidget {
   final PostWriteController controller;
   final Function? onTapPublisher;
+  final Function? onTapRealm;
 
-  const _PostStoryEditor({required this.controller, this.onTapPublisher});
+  const _PostStoryEditor({required this.controller, this.onTapPublisher, this.onTapRealm});
 
   @override
   Widget build(BuildContext context) {
@@ -589,17 +672,36 @@ class _PostStoryEditor extends StatelessWidget {
       child: Row(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
-          Material(
-            elevation: 2,
-            borderRadius: const BorderRadius.all(Radius.circular(24)),
-            child: GestureDetector(
-              onTap: () {
-                onTapPublisher?.call();
-              },
-              child: AccountImage(
-                content: controller.publisher?.avatar,
+          Column(
+            children: [
+              Material(
+                elevation: 2,
+                borderRadius: const BorderRadius.all(Radius.circular(24)),
+                child: GestureDetector(
+                  onTap: () {
+                    onTapPublisher?.call();
+                  },
+                  child: AccountImage(
+                    content: controller.publisher?.avatar,
+                  ),
+                ),
               ),
-            ),
+              const Gap(10),
+              Material(
+                elevation: 1,
+                borderRadius: const BorderRadius.all(Radius.circular(24)),
+                child: GestureDetector(
+                  onTap: () {
+                    onTapRealm?.call();
+                  },
+                  child: AccountImage(
+                    content: controller.realm?.avatar,
+                    fallbackWidget: const Icon(Symbols.globe, size: 20),
+                    radius: 14,
+                  ),
+                ),
+              ),
+            ],
           ),
           Expanded(
             child: Column(
diff --git a/lib/screens/realm/realm_detail.dart b/lib/screens/realm/realm_detail.dart
index 14ba244..b8f5256 100644
--- a/lib/screens/realm/realm_detail.dart
+++ b/lib/screens/realm/realm_detail.dart
@@ -365,7 +365,7 @@ class _RealmSettingsWidgetState extends State<_RealmSettingsWidget> {
     final sn = context.read<SnNetworkProvider>();
 
     try {
-      await sn.client.delete('/cgi/id/realms/${widget.realm!.alias}/members/me');
+      await sn.client.delete('/cgi/id/realms/${widget.realm!.alias}/me');
       if (!mounted) return;
       Navigator.pop(context, true);
     } catch (err) {