diff --git a/LightlessSyncAPI/Data/Enum/GroupUserPreferredPermissions.cs b/LightlessSyncAPI/Data/Enum/GroupUserPreferredPermissions.cs
index cf0b448..0924b83 100644
--- a/LightlessSyncAPI/Data/Enum/GroupUserPreferredPermissions.cs
+++ b/LightlessSyncAPI/Data/Enum/GroupUserPreferredPermissions.cs
@@ -8,4 +8,5 @@ public enum GroupUserPreferredPermissions
     DisableAnimations = 0x2,
     DisableSounds = 0x4,
     DisableVFX = 0x8,
+    ShareLocation = 0x10,
 }
\ No newline at end of file
diff --git a/LightlessSyncAPI/Data/Enum/UserPermissions.cs b/LightlessSyncAPI/Data/Enum/UserPermissions.cs
index 7d875d7..6e2f0c0 100644
--- a/LightlessSyncAPI/Data/Enum/UserPermissions.cs
+++ b/LightlessSyncAPI/Data/Enum/UserPermissions.cs
@@ -9,4 +9,5 @@ public enum UserPermissions
     DisableSounds = 4,
     DisableVFX = 8,
     Sticky = 16,
+    ShareLocation = 32
 }
\ No newline at end of file
diff --git a/LightlessSyncAPI/Data/Extensions/GroupUserPermissionsExtensions.cs b/LightlessSyncAPI/Data/Extensions/GroupUserPermissionsExtensions.cs
index f55f1cd..a16fae0 100644
--- a/LightlessSyncAPI/Data/Extensions/GroupUserPermissionsExtensions.cs
+++ b/LightlessSyncAPI/Data/Extensions/GroupUserPermissionsExtensions.cs
@@ -23,6 +23,11 @@ public static class GroupUserPermissionsExtensions
     {
         return perm.HasFlag(GroupUserPreferredPermissions.Paused);
     }
+    
+    public static bool IsSharingLocation(this GroupUserPreferredPermissions perm)
+    {
+        return perm.HasFlag(GroupUserPreferredPermissions.ShareLocation);
+    }
 
     public static void SetDisableAnimations(this ref GroupUserPreferredPermissions perm, bool set)
     {
@@ -47,4 +52,10 @@ public static class GroupUserPermissionsExtensions
         if (set) perm |= GroupUserPreferredPermissions.Paused;
         else perm &= ~GroupUserPreferredPermissions.Paused;
     }
+    
+    public static void SetShareLocation(this ref GroupUserPreferredPermissions perm, bool set)
+    {
+        if (set) perm |= GroupUserPreferredPermissions.ShareLocation;
+        else perm &= ~GroupUserPreferredPermissions.ShareLocation;
+    }
 }
\ No newline at end of file
diff --git a/LightlessSyncAPI/Data/Extensions/UserPermissionsExtensions.cs b/LightlessSyncAPI/Data/Extensions/UserPermissionsExtensions.cs
index 6357b8f..63b516e 100644
--- a/LightlessSyncAPI/Data/Extensions/UserPermissionsExtensions.cs
+++ b/LightlessSyncAPI/Data/Extensions/UserPermissionsExtensions.cs
@@ -28,6 +28,10 @@ public static class UserPermissionsExtensions
     {
         return perm.HasFlag(UserPermissions.Sticky);
     }
+    public static bool IsSharingLocation(this UserPermissions perm)
+    {
+        return perm.HasFlag(UserPermissions.ShareLocation);
+    }
 
     public static void SetDisableAnimations(this ref UserPermissions perm, bool set)
     {
@@ -58,4 +62,10 @@ public static class UserPermissionsExtensions
         if (sticky) perm |= UserPermissions.Sticky;
         else perm &= ~UserPermissions.Sticky;
     }
+    
+    public static void SetShareLocation(this ref UserPermissions perm, bool? set)
+    {
+        if (set == true) perm |= UserPermissions.ShareLocation;
+        else perm &= ~UserPermissions.ShareLocation;
+    }
 }
\ No newline at end of file
diff --git a/LightlessSyncAPI/Dto/CharaData/CharaDataFullDto.cs b/LightlessSyncAPI/Dto/CharaData/CharaDataFullDto.cs
index 726b4b2..4eaa391 100644
--- a/LightlessSyncAPI/Dto/CharaData/CharaDataFullDto.cs
+++ b/LightlessSyncAPI/Dto/CharaData/CharaDataFullDto.cs
@@ -59,6 +59,7 @@ public record struct LocationInfo
     [Key(4)] public uint WardId { get; set; }
     [Key(5)] public uint HouseId { get; set; }
     [Key(6)] public uint RoomId { get; set; }
+    [Key(7)] public uint InstanceId { get; set; }
 }
 
 [MessagePackObject]
diff --git a/LightlessSyncAPI/Dto/User/LocationDto.cs b/LightlessSyncAPI/Dto/User/LocationDto.cs
new file mode 100644
index 0000000..0b70b26
--- /dev/null
+++ b/LightlessSyncAPI/Dto/User/LocationDto.cs
@@ -0,0 +1,9 @@
+using LightlessSync.API.Data;
+using LightlessSync.API.Dto.CharaData;
+using MessagePack;
+
+namespace LightlessSync.API.Dto.User;
+
+
+[MessagePackObject(keyAsPropertyName: true)]
+public record LocationDto(UserData user, LocationInfo location);
\ No newline at end of file
diff --git a/LightlessSyncAPI/SignalR/ILightlessHub.cs b/LightlessSyncAPI/SignalR/ILightlessHub.cs
index 46b4074..70ce047 100644
--- a/LightlessSyncAPI/SignalR/ILightlessHub.cs
+++ b/LightlessSyncAPI/SignalR/ILightlessHub.cs
@@ -8,9 +8,9 @@ using LightlessSync.API.Dto.User;
 
 namespace LightlessSync.API.SignalR;
 
-public interface ILightlessHub
-{
-    const int ApiVersion = 35;
+public interface ILightlessHub
+{
+    const int ApiVersion = 35;
     const string Path = "/lightless";
 
     Task<bool> CheckClientHealth();
@@ -45,6 +45,7 @@ public interface ILightlessHub
     Task Client_GposeLobbyPushPoseData(UserData userData, PoseData poseData);
     Task Client_GposeLobbyPushWorldData(UserData userData, WorldData worldData);
     Task Client_ChatReceive(ChatMessageDto message);
+    Task Client_SendLocationToClient(LocationDto locationDto);
 
     Task<ConnectionDto> GetConnectionDto();
     Task<IReadOnlyList<ZoneChatChannelInfoDto>> GetZoneChatChannels();
@@ -112,7 +113,11 @@ public interface ILightlessHub
     Task GposeLobbyPushPoseData(PoseData poseData);
     Task GposeLobbyPushWorldData(WorldData worldData);
     Task UpdateChatPresence(ChatPresenceUpdateDto presence);
-    Task SendChatMessage(ChatSendRequestDto request);
-    Task ReportChatMessage(ChatReportSubmitDto request);
-    Task SetChatParticipantMute(ChatParticipantMuteRequestDto request);
-}
+    Task SendChatMessage(ChatSendRequestDto request);
+    Task ReportChatMessage(ChatReportSubmitDto request);
+    Task SetChatParticipantMute(ChatParticipantMuteRequestDto request);
+    
+    Task UpdateLocation(LocationDto locationDto, bool offline);
+    Task<List<LocationDto>> RequestAllLocationInfo();
+    
+}
diff --git a/LightlessSyncAPI/SignalR/ILightlessHubClient.cs b/LightlessSyncAPI/SignalR/ILightlessHubClient.cs
index 38918de..a63c013 100644
--- a/LightlessSyncAPI/SignalR/ILightlessHubClient.cs
+++ b/LightlessSyncAPI/SignalR/ILightlessHubClient.cs
@@ -58,4 +58,5 @@ public interface ILightlessHubClient : ILightlessHub
     void OnGposeLobbyPushCharacterData(Action<CharaDataDownloadDto> act);
     void OnGposeLobbyPushPoseData(Action<UserData, PoseData> act);
     void OnGposeLobbyPushWorldData(Action<UserData, WorldData> act);
+    void OnReciveLocation(Action<LocationDto> act);
 }
\ No newline at end of file