diff --git a/app/User.php b/app/User.php
index 7d66629..991f8ab 100644
--- a/app/User.php
+++ b/app/User.php
@@ -37,7 +37,7 @@ class User extends Authenticatable
 
     public function getGenderAttribute()
     {
-        return $this->gender_id == 1 ? 'Laki-laki' : 'Perempuan';
+        return $this->gender_id == 1 ? 'L' : 'P';
     }
 
     public function setFather(User $father)
@@ -136,16 +136,19 @@ class User extends Authenticatable
 
     public function siblings()
     {
-        // TODO: research for fit siblings query
-        return User::where(function ($query) {
-            $query->where('id', '!=', $this->id);
-            if ($this->father_id != null)
-                $query->where('father_id', $this->father_id);
-            // if ($this->mother_id != null)
-            //     $query->where('mother_id', $this->mother_id);
-            // if ($this->parent_id != null)
-            //     $query->where('parent_id', $this->parent_id);
-        })->get();
+        if (is_null($this->father_id) && is_null($this->mother_id) && is_null($this->parent_id))
+            return collect([]);
+
+        return User::where('id', '!=', $this->id)
+            ->where(function ($query) {
+                if (!is_null($this->father_id))
+                    $query->where('father_id', $this->father_id);
+                if (!is_null($this->mother_id))
+                    $query->orWhere('mother_id', $this->mother_id);
+                if (!is_null($this->parent_id))
+                    $query->orWhere('parent_id', $this->parent_id);
+            })
+            ->get();
     }
 
     public function parent()
diff --git a/resources/views/users/chart.blade.php b/resources/views/users/chart.blade.php
index e21c7b6..3376a0c 100644
--- a/resources/views/users/chart.blade.php
+++ b/resources/views/users/chart.blade.php
@@ -30,16 +30,16 @@
             </tr>
             <tr>
                 <th>&nbsp;</th>
-                <th class="text-center" colspan="{{ $colspan }}">{{ $user->profileLink('chart') }}</th>
+                <th class="text-center" colspan="{{ $colspan }}">{{ $user->profileLink('chart') }} ({{ $user->gender }})</th>
             </tr>
             <tr>
                 <th>Anak-Anak & Cucu-Cucu</th>
                 @foreach($childs as $child)
                 <td>
-                    {{ $child->profileLink('chart') }}
+                    {{ $child->profileLink('chart') }} ({{ $child->gender }})
                     <ul style="padding-left: 18px">
                         @foreach($child->childs as $grand)
-                        <li>{{ $grand->profileLink('chart') }}</li>
+                        <li>{{ $grand->profileLink('chart') }} ({{ $grand->gender }})</li>
                         @endforeach
                     </ul>
                 </td>
@@ -57,7 +57,7 @@
                 <tbody>
                     <tr>
                         <th style="width: 35%">Saudara</th>
-                        <th class="text-center" colspan="{{ $sibling->childs->count() }}">{{ $sibling->profileLink('chart') }}</th>
+                        <th class="text-center" colspan="{{ $sibling->childs->count() }}">{{ $sibling->profileLink('chart') }} ({{ $sibling->gender }})</th>
                     </tr>
                     <tr>
                         <th>Keponakan & Cucu-Cucu</th>
@@ -65,10 +65,10 @@
                             <ol style="padding-left: 15px">
                                 @foreach($sibling->childs as $child)
                                 <li>
-                                    {{ $child->profileLink('chart') }}
+                                    {{ $child->profileLink('chart') }} ({{ $child->gender }})
                                     <ul style="padding-left: 18px">
                                         @foreach($child->childs as $grand)
-                                        <li>{{ $grand->profileLink('chart') }}</li>
+                                        <li>{{ $grand->profileLink('chart') }} ({{ $grand->gender }})</li>
                                         @endforeach
                                     </ul>
                                 </li>