diff --git a/lib/l10n/intl_en.arb b/lib/l10n/intl_en.arb
index 64e00cc7..a83cb700 100644
--- a/lib/l10n/intl_en.arb
+++ b/lib/l10n/intl_en.arb
@@ -544,5 +544,6 @@
   "proxy_setting_input_hint": "e.g. 127.0.0.1:1234 (Leave blank to disable)",
   "proxy_setting_set_successfully": "Proxy settings saved, restart the app to take effect.",
   "use_webvpn_title": "Use WebVPN proxy",
-  "use_webvpn_description": "When enabled, certain functions could be accessed directly without Fudan LAN (restart required)"
+  "use_webvpn_description": "When enabled, certain functions could be accessed directly without Fudan LAN (restart required)",
+  "show_this_person": "Filter by this user"
 }
\ No newline at end of file
diff --git a/lib/l10n/intl_ja.arb b/lib/l10n/intl_ja.arb
index ad4b1acf..29ea636b 100644
--- a/lib/l10n/intl_ja.arb
+++ b/lib/l10n/intl_ja.arb
@@ -526,5 +526,6 @@
   "proxy_setting_input_hint": "例：127.0.0.1:1234（空白のままにしてプロキシを無効にする）",
   "proxy_setting_set_successfully": "プロキシ設定が保存されました。再起動すると有効になります。",
   "use_webvpn_title": "WebVPN を自動的に使う",
-  "use_webvpn_description": "有効時、一部の機能はFudan LANなしで、直接に連接するのができます (再起動が必要)"
+  "use_webvpn_description": "有効時、一部の機能はFudan LANなしで、直接に連接するのができます (再起動が必要)",
+  "show_this_person": "この人だけ"
 }
\ No newline at end of file
diff --git a/lib/l10n/intl_zh_CN.arb b/lib/l10n/intl_zh_CN.arb
index b086f0d3..ec89f03f 100644
--- a/lib/l10n/intl_zh_CN.arb
+++ b/lib/l10n/intl_zh_CN.arb
@@ -538,5 +538,6 @@
   "proxy_setting_input_hint": "如 127.0.0.1:1234（留空以关闭代理）",
   "proxy_setting_set_successfully": "代理设置已保存，重启应用后生效",
   "use_webvpn_title": "自动使用 WebVPN 代理",
-  "use_webvpn_description": "启动该项后，允许在非校园网环境下直接访问茶楼、评教等功能（需要重启应用）"
+  "use_webvpn_description": "启动该项后，允许在非校园网环境下直接访问茶楼、评教等功能（需要重启应用）",
+  "show_this_person": "只看此人"
 }
diff --git a/lib/page/forum/hole_detail.dart b/lib/page/forum/hole_detail.dart
index 4b7169d2..341c2580 100644
--- a/lib/page/forum/hole_detail.dart
+++ b/lib/page/forum/hole_detail.dart
@@ -306,7 +306,7 @@ class BBSPostDetailState extends State<BBSPostDetail> {
         ),
         trailingActions: [
           if (_renderModel
-              case Normal(hole: var hole, onlyShowDZ: var onlyShowDZ)) ...[
+              case Normal(hole: var hole, selectedPerson: var selectedPerson)) ...[
             _buildSubscribeActionButton(),
             _buildFavoredActionButton(),
             PlatformIconButton(
@@ -327,12 +327,18 @@ class BBSPostDetailState extends State<BBSPostDetail> {
                     label: S.of(context).scroll_to_end,
                     onTap: _onTapScrollToEnd),
                 PopupMenuOption(
-                    label: onlyShowDZ
+                    label: selectedPerson == hole.floors?.first_floor?.anonyname
                         ? S.of(context).show_all_replies
                         : S.of(context).only_show_dz,
                     onTap: (_) {
-                      setState(() =>
-                          (_renderModel as Normal).onlyShowDZ = !onlyShowDZ);
+                      setState(() {
+                        if ((_renderModel as Normal).selectedPerson != hole.floors?.first_floor?.anonyname) {
+                          (_renderModel as Normal).selectedPerson = hole.floors?.first_floor?.anonyname;
+                        }
+                        else {
+                          (_renderModel as Normal).selectedPerson = null;
+                        }
+                      });
                       refreshListView();
                     }),
                 PopupMenuOption(
@@ -878,6 +884,20 @@ class BBSPostDetailState extends State<BBSPostDetail> {
         },
         child: Text(S.of(context).share_floor),
       ),
+      PlatformContextMenuItem(
+        menuContext: menuContext,
+        onPressed: () async {
+          if ((_renderModel as Normal).selectedPerson != null) {
+            (_renderModel as Normal).selectedPerson = null;
+            refreshListView();
+          } else {
+            setState(() =>
+            (_renderModel as Normal).selectedPerson = e.anonyname);
+            refreshListView();
+          }
+        },
+        child: Text((_renderModel as Normal).selectedPerson == e.anonyname ? S.of(context).show_all_replies : S.of(context).show_this_person),
+      ),
       PlatformContextMenuItem(
         menuContext: menuContext,
         isDestructive: true,
@@ -1009,9 +1029,9 @@ class BBSPostDetailState extends State<BBSPostDetail> {
   Widget _getListItems(BuildContext context, ListProvider<OTFloor> dataProvider,
       int index, OTFloor floor,
       {bool isNested = false}) {
-    if (_renderModel case Normal(onlyShowDZ: var onlyShowDZ, hole: var hole)) {
-      if (onlyShowDZ &&
-          floor.anonyname != hole.floors?.first_floor?.anonyname) {
+    if (_renderModel case Normal(selectedPerson: var selectedPerson, hole: var hole)) {
+      if (selectedPerson != null &&
+        floor.anonyname != selectedPerson) {
         return nil;
       }
     }
@@ -1190,7 +1210,7 @@ sealed class RenderModel {}
 class Normal extends RenderModel {
   OTHole hole;
   bool? isFavored, isSubscribed;
-  bool onlyShowDZ = false;
+  String? selectedPerson = null;
 
   Normal(this.hole);