diff --git a/public/vendor/exment/js/scroll-restore.js b/public/vendor/exment/js/scroll-restore.js
new file mode 100644
index 000000000..368ca822b
--- /dev/null
+++ b/public/vendor/exment/js/scroll-restore.js
@@ -0,0 +1,128 @@
+/**
+ * Scroll position restore for custom table list view
+ * Handles scroll restoration on browser back button and pjax navigation
+ */
+var Exment;
+(function (Exment) {
+    'use strict';
+
+    const CLASSNAME_CUSTOM_VALUE_GRID = '.block_custom_value_grid';
+
+    // Save current scroll position
+    function saveCurrentScrollPosition() {
+        const scrollTop = $(window).scrollTop() || document.documentElement.scrollTop || document.body.scrollTop || 0;
+        
+        // Store in history state if available
+        if (window.history && window.history.replaceState) {
+            const currentState = window.history.state || {};
+            currentState.scrollTop = scrollTop;
+            try {
+                window.history.replaceState(currentState, document.title);
+            } catch (e) {
+                console.warn('Failed to update history state:', e);
+            }
+        }
+    }
+
+    // Restore scroll position from history state
+    function restoreScrollPosition() {
+        let scrollTop = 0;
+        
+        // Only restore from history state (for back button)
+        if (window.history && window.history.state && typeof window.history.state.scrollTop === 'number') {
+            scrollTop = window.history.state.scrollTop;
+        }
+        
+        if (scrollTop > 0) {
+            // Use setTimeout to ensure DOM is ready
+            setTimeout(function() {
+                window.scrollTo(0, scrollTop);
+                // Verify and retry if needed
+                setTimeout(function() {
+                    const currentScroll = window.pageYOffset || document.documentElement.scrollTop;
+                    if (Math.abs(currentScroll - scrollTop) > 50) {
+                        window.scrollTo(0, scrollTop);
+                    }
+                }, 100);
+            }, 0);
+        }
+    }
+
+    // ScrollRestore module
+    Exment.ScrollRestore = {
+        init: function() {
+            // Prevent multiple initialization
+            if (window.exmentScrollRestoreInitialized) {
+                return;
+            }
+            window.exmentScrollRestoreInitialized = true;
+
+            // Disable browser's default scroll restoration
+            if ('scrollRestoration' in history) {
+                history.scrollRestoration = 'manual';
+            }
+
+            restoreScrollPosition();
+            
+            // Save scroll position periodically while scrolling
+            let scrollTimer;
+            $(window).on('scroll', function() {
+                clearTimeout(scrollTimer);
+                scrollTimer = setTimeout(function() {
+                    // Only save if we're on a list page (grid view)
+                    if ($(CLASSNAME_CUSTOM_VALUE_GRID).length > 0) {
+                        saveCurrentScrollPosition();
+                    }
+                }, 150);
+            });
+
+            // Save scroll position before leaving page
+            $(window).on('beforeunload', function() {
+                if ($(CLASSNAME_CUSTOM_VALUE_GRID).length > 0) {
+                    saveCurrentScrollPosition();
+                }
+            });
+
+            // Handle pjax events
+            if ($.pjax) {
+                let isPjaxPopstate = false;
+
+                $(document).on('pjax:popstate', function() {
+                    isPjaxPopstate = true;
+                });
+
+                // Save scroll position before pjax request
+                $(document).on('pjax:send', function(event, xhr, options) {
+                    if ($(CLASSNAME_CUSTOM_VALUE_GRID).length > 0) {
+                        saveCurrentScrollPosition();
+                    }
+                });
+
+                // Handle scroll position after pjax complete
+                $(document).on('pjax:end', function(event, xhr, options) {
+                    if ($(CLASSNAME_CUSTOM_VALUE_GRID).length > 0) {
+                        if (isPjaxPopstate) {
+                            // If it's a back/forward navigation, restore scroll
+                            restoreScrollPosition();
+                            isPjaxPopstate = false;
+                        } else {
+                            // If it's a new navigation (pagination, sort, etc), scroll to top
+                            window.scrollTo(0, 0);
+                        }
+                    }
+                });
+            }
+
+            // Save position when clicking on links in grid
+            $(CLASSNAME_CUSTOM_VALUE_GRID).on('click', 'a', function() {
+                saveCurrentScrollPosition();
+            });
+        }
+    };
+
+    // Auto-initialize on document ready
+    $(function() {
+        Exment.ScrollRestore.init();
+    });
+
+})(Exment || (Exment = {}));
diff --git a/resources/lang/en/exment.php b/resources/lang/en/exment.php
index 3b959a6c3..84d1386cc 100644
--- a/resources/lang/en/exment.php
+++ b/resources/lang/en/exment.php
@@ -1196,6 +1196,7 @@
         'all_user_viewable_flg' => 'All Users Can View',
         'all_user_accessable_flg' => 'All Users Can Access',
         'inherit_parent_permission' => 'Viewable with Permissions of Parent data',
+        'editable_with_parent' => 'Need Edit Permission for Parend data',
         'add_parent_menu_flg' => 'Add Menu',
         'add_notify_flg' => 'Add To Notification',
         'add_parent_menu' => 'Target Parent Menu',
@@ -1278,6 +1279,7 @@
             'all_user_viewable_flg' => 'If set to YES, all users will be able to view all the data in this table.',
             'all_user_accessable_flg' => 'If set to YES, all users will be able to see all the data in this table.<br/>*It is not displayed on the menu or list page, it can be displayed only with internal data or reference from another table.',
             'inherit_parent_permission' => 'If set to YES, the data can be viewed based on the the parent data(1:N) permissions. However, you must have viewing or similar permissions for this table itself.',
+            'editable_with_parent' => 'If set to YES, you need edit permissions for the parent data(1:N) to edit the data in this table.',
             'add_parent_menu_flg' => 'After creating custom table, you can add it to the menu. To add it, please set it to YES. *It will be displayed after updating the browser. <br /> *It can be set only when new table is created. When updating please set it from "Menu" page.',
             'add_parent_menu' => 'Please select the menu name to be parent.',
             'add_notify_flg' => 'You can add settings for performing in-system notification to authorized users when creating/updating/sharing/commenting data, after creating a new table. Please add YES if you want to add.<br/>* It can be set only when creating a new table. Please set from the "notification" page when updating.',
diff --git a/resources/lang/ja/exment.php b/resources/lang/ja/exment.php
index 713a41358..d8998a146 100644
--- a/resources/lang/ja/exment.php
+++ b/resources/lang/ja/exment.php
@@ -1197,6 +1197,7 @@
         'all_user_viewable_flg' => '全ユーザーが閲覧可能',
         'all_user_accessable_flg' => '全ユーザーが参照可能',
         'inherit_parent_permission' => '親データの権限で閲覧可能',
+        'editable_with_parent' => '親データの編集権限が必要',
         'add_parent_menu_flg' => 'メニューに追加する',
         'add_notify_flg' => '通知に追加する',
         'add_parent_menu' => '追加先の親メニュー',
@@ -1279,6 +1280,7 @@
             'all_user_viewable_flg' => 'YESにした場合、すべてのユーザーが、このテーブルのすべてのデータを閲覧可能になります。',
             'all_user_accessable_flg' => 'YESにした場合、すべてのユーザーが、このテーブルのすべてのデータを参照可能になります。<br/>※メニューや一覧画面では表示されず、内部データや、他のテーブルからの参照でのみ表示できます。',
             'inherit_parent_permission' => 'YESにした場合、親データ（1対多）の権限でデータを閲覧できます。ただし、このテーブル自体に担当者の閲覧等の権限を持っている必要があります。',
+            'editable_with_parent' => 'YESにした場合、このテーブルのデータを編集するには親データ（1対多）の編集権限が必要になります。',
             'add_parent_menu_flg' => '新規作成後、メニューに追加することができます。追加する場合はYESにしてください。<br/>※ブラウザ更新後に表示されます。<br />※テーブルの新規作成時のみ設定できます。更新時は「メニュー」画面より設定してください。',
             'add_parent_menu' => '親にするメニュー名を選択してください。',
             'add_notify_flg' => 'データの新規作成・更新・共有、コメント時に、権限のあるユーザーに、システム内通知を行う設定を、テーブルの新規作成後に追加することができます。追加する場合はYESにしてください。<br/>※テーブルの新規作成時のみ設定できます。更新時は「通知」画面より設定してください。',
diff --git a/src/Controllers/ApiDataTrait.php b/src/Controllers/ApiDataTrait.php
index 76aa611ee..dbdf0f140 100644
--- a/src/Controllers/ApiDataTrait.php
+++ b/src/Controllers/ApiDataTrait.php
@@ -16,6 +16,7 @@
 use Exceedone\Exment\Enums\SearchType;
 use Exceedone\Exment\Enums\ValueType;
 use Exceedone\Exment\Enums\ErrorCode;
+use Exceedone\Exment\Enums\RelationType;
 use Validator;
 
 /**
@@ -202,6 +203,7 @@ protected function modifyAfterGetValue(Request $request, $target, $options = [])
                     'id',
                     'target_view_id',
                     'children',
+                    'parents',
                 ]),
                 $options['appends']
             );
@@ -267,6 +269,11 @@ protected function modifyCustomValue(Request $request, $custom_value, $recursive
             $custom_value = $this->modifyChildrenValue($request, $custom_value);
         }
 
+        // Change relation key name
+        if (!$recursive && $request->has('parents') && boolval($request->get('parents'))) {
+            $custom_value = $this->modifyParentsValue($request, $custom_value);
+        }
+
         // convert to custom values
         $valuetype = $request->get('valuetype');
         if ($request->has('valuetype') && ValueType::isRegetApiCustomValue($valuetype)) {
@@ -386,10 +393,22 @@ protected function setQueryInfo($query)
                 $query->with($relation->getRelationName());
             }
         }
+        if ($request->has('parents') && boolval($request->get('parents'))) {
+            $relations = CustomRelation::getRelationsByChild($this->custom_table);
+            foreach ($relations as $relation) {
+                $query->with($relation->getRelationName());
+            }
+        }
 
         return $query;
     }
 
+    /**
+     * Modify children values (exclude virtual columns from children values)
+     *
+     * @param Request $request
+     * @return CustomValue $custom_value
+     */
     protected function modifyChildrenValue(Request $request, $custom_value)
     {
         $relations = CustomRelation::getRelationsByParent($this->custom_table);
@@ -417,4 +436,46 @@ protected function modifyChildrenValue(Request $request, $custom_value)
         $custom_value['children'] = $results;
         return $custom_value;
     }
+
+    /**
+     * Modify parents values (exclude virtual columns from parents values)
+     *
+     * @param Request $request
+     * @return CustomValue $custom_value
+     */
+    protected function modifyParentsValue(Request $request, $custom_value)
+    {
+        $relations = CustomRelation::getRelationsByChild($this->custom_table);
+
+        $results = [];
+        foreach ($relations as $relation) {
+            // If getted relation name, change key name
+            $reltionName = $relation->getRelationName();
+            if (array_has($custom_value, $reltionName)) {
+                $relationValues = $custom_value[$reltionName];
+                $makeHiddenArray = $relation->parent_custom_table_cache->getMakeHiddenArray();
+
+                if ($relation->relation_type == RelationType::ONE_TO_MANY) {
+                    // Call makehidden
+                    $relationValues = $relationValues->makeHidden($makeHiddenArray);
+                    // Call modify custom value
+                    $relationValues = $this->modifyCustomValue($request, $relationValues, true);
+                } else {
+                    $relationValues = $relationValues->map(function ($relationValue) use ($makeHiddenArray, $request) {
+                        // Call makehidden
+                        $relationValue = $relationValue->makeHidden($makeHiddenArray);
+                        // Call modify custom value
+                        $relationValue = $this->modifyCustomValue($request, $relationValue, true);
+                        return $relationValue;
+                    });
+                }
+                // Set key name
+                $results[$relation->parent_custom_table_cache->table_name] = $relationValues;
+                unset($custom_value[$reltionName]);
+            }
+        }
+
+        $custom_value['parents'] = $results;
+        return $custom_value;
+    }
 }
diff --git a/src/Controllers/CustomTableController.php b/src/Controllers/CustomTableController.php
index ceadd0fdf..339bceede 100644
--- a/src/Controllers/CustomTableController.php
+++ b/src/Controllers/CustomTableController.php
@@ -318,6 +318,9 @@ protected function form($id = null)
             if ($has_parent) {
                 $form->switchbool('inherit_parent_permission', exmtrans("custom_table.inherit_parent_permission"))->help(exmtrans("custom_table.help.inherit_parent_permission"))
                     ->default("0");
+
+                $form->switchbool('editable_with_parent', exmtrans("custom_table.editable_with_parent"))->help(exmtrans("custom_table.help.editable_with_parent"))
+                    ->default("1");
             }
         })->disableHeader();
 
diff --git a/src/DataItems/Grid/DefaultGrid.php b/src/DataItems/Grid/DefaultGrid.php
index 140f7584f..087ca1141 100644
--- a/src/DataItems/Grid/DefaultGrid.php
+++ b/src/DataItems/Grid/DefaultGrid.php
@@ -558,10 +558,18 @@ protected function manageRowAction($grid)
                     $enableCreate = false;
                 }
 
-                if (!is_null($parent_value = $actions->row->getParentValue(null, true)) && $parent_value->enableEdit(true) !== true) {
-                    $enableCreate = false;
-                    $enableEdit = false;
-                    $enableDelete = false;
+                if (!is_null($parent_value = $actions->row->getParentValue(null, true))) {
+                    if (boolval($custom_table->getOption('editable_with_parent')??1)) {
+                        if ($parent_value->enableEdit(true) !== true) {
+                            $enableCreate = false;
+                            $enableEdit = false;
+                            $enableDelete = false;
+                        }
+                    } elseif ($parent_value->enableAccess() !== true)  {
+                        $enableCreate = false;
+                        $enableEdit = false;
+                        $enableDelete = false;
+                    }
                 }
 
                 if (!$enableEdit) {
diff --git a/src/DataItems/Show/DefaultShow.php b/src/DataItems/Show/DefaultShow.php
index ec99bb5fa..a3afdb806 100644
--- a/src/DataItems/Show/DefaultShow.php
+++ b/src/DataItems/Show/DefaultShow.php
@@ -170,9 +170,16 @@ public function createShowForm()
                     $tools->disableList();
                 }
 
-                if (!is_null($parent_value = $this->custom_value->getParentValue(null, true)) && $parent_value->enableEdit(true) !== true) {
-                    $tools->disableEdit();
-                    $tools->disableDelete();
+                if (!is_null($parent_value = $this->custom_value->getParentValue(null, true))) {
+                    if (boolval($this->custom_table->getOption('editable_with_parent')??1)) {
+                        if ($parent_value->enableEdit(true) !== true) {
+                            $tools->disableEdit();
+                            $tools->disableDelete();
+                        }
+                    } elseif ($parent_value->enableAccess() !== true)  {
+                        $tools->disableEdit();
+                        $tools->disableDelete();
+                    }
                 }
 
                 if ($this->modal) {
diff --git a/src/Jobs/MailSendJob.php b/src/Jobs/MailSendJob.php
index feabdeea3..1d9dc0d33 100644
--- a/src/Jobs/MailSendJob.php
+++ b/src/Jobs/MailSendJob.php
@@ -28,13 +28,13 @@ class MailSendJob extends Notification implements ShouldQueue
      * @var MailHistory
      */
     protected $mailHistory;
-    protected $user;
+    protected $userId;
     protected $finalUser;
 
 
-    public function __construct($user = null, $finalUser = false)
+    public function __construct($userId = null, $finalUser = false)
     {
-        $this->user = $user;
+        $this->userId = $userId;
         $this->finalUser = $finalUser;
     }
 
@@ -104,7 +104,7 @@ public function failed($exception)
                 $mail_template->getValue('mail_subject'),
                 $mail_template->getValue('mail_body'),
                 $this->notify_id ?? -1,
-                $this->user->id,
+                $this->userId,
                 \Exment::getUserId() ?? null,
                 $this->mailHistory->getParentId(),
                 $this->mailHistory->getParentType()
diff --git a/src/Middleware/Bootstrap.php b/src/Middleware/Bootstrap.php
index 4c57caa8d..e15b08037 100644
--- a/src/Middleware/Bootstrap.php
+++ b/src/Middleware/Bootstrap.php
@@ -77,6 +77,7 @@ protected function setCssJs(Request $request, \Closure $next)
             'vendor/exment/jstree/jstree.min.js',
             'vendor/exment/js/common_all.js',
             'vendor/exment/js/common.js',
+            'vendor/exment/js/scroll-restore.js',
             'vendor/exment/js/search.js',
             'vendor/exment/js/calc.js',
             'vendor/exment/js/notify_navbar.js',
diff --git a/src/Model/CustomValue.php b/src/Model/CustomValue.php
index 8b6718241..27c02193b 100644
--- a/src/Model/CustomValue.php
+++ b/src/Model/CustomValue.php
@@ -1794,8 +1794,17 @@ public function enableEdit($checkFormAction = false)
             return ErrorCode::WORKFLOW_LOCK();
         }
 
-        if (!is_null($parent_value = $this->getParentValue()) && ($code = $parent_value->enableEdit($checkFormAction)) !== true) {
-            return $code;
+        // check parent permission
+        if (!is_null($parent_value = $this->getParentValue())) {
+            if (boolval($this->custom_table->getOption('editable_with_parent')??1)) {
+                if (($code = $parent_value->enableEdit($checkFormAction)) !== true) {
+                    return $code;
+                }
+            } else {
+                if (($code = $parent_value->enableAccess()) !== true) {
+                    return $code;
+                }
+            }
         }
 
         if ($this->trashed()) {
@@ -1834,8 +1843,17 @@ public function enableDelete($checkFormAction = false)
             return ErrorCode::DELETE_DISABLED();
         }
 
-        if (!is_null($parent_value = $this->getParentValue()) && ($code = $parent_value->enableDelete($checkFormAction)) !== true) {
-            return $code;
+        // check parent permission
+        if (!is_null($parent_value = $this->getParentValue())) {
+            if (boolval($this->custom_table->getOption('editable_with_parent')??1)) {
+                if (($code = $parent_value->enableDelete($checkFormAction)) !== true) {
+                    return $code;
+                }
+            } else {
+                if (($code = $parent_value->enableAccess()) !== true) {
+                    return $code;
+                }
+            }
         }
 
         return true;
diff --git a/src/Notifications/MailSender.php b/src/Notifications/MailSender.php
index 2acdc66e7..2973c3dc8 100644
--- a/src/Notifications/MailSender.php
+++ b/src/Notifications/MailSender.php
@@ -241,7 +241,7 @@ protected function sendMail()
             ->setFromName($fromName)
             ->setBodyType($bodyType);
 
-        $job = new MailSendJob(\Exment::user(), $this->final_user);
+        $job = new MailSendJob(\Exment::getUserId(), $this->final_user);
         $job->setMailInfo($this->mailInfo)
             ->setMailHistory($this->mailHistory);
         $this->notify($job);
@@ -281,7 +281,7 @@ protected function sendPasswordMail()
             ->setMailTemplate($mail_template)
             ->setHistory(false);
 
-        $job = new MailSendJob(\Exment::user(), $this->final_user);
+        $job = new MailSendJob(\Exment::getUserId(), $this->final_user);
         $job->setMailInfo($mailInfo)
             ->setMailHistory($mailHistory);
 
diff --git a/src/Services/Search/SearchService.php b/src/Services/Search/SearchService.php
index 26dc4ada6..ac9bfc676 100644
--- a/src/Services/Search/SearchService.php
+++ b/src/Services/Search/SearchService.php
@@ -466,7 +466,7 @@ protected function setSummaryOrderBy($column, $wrap_column)
     {
         $sort_order = array_get($column->options, 'sort_order');
         if (is_nullorempty($sort_order)) {
-            return $this;
+            $sort_order = 1;
         }
 
         $sort_type = isMatchString(array_get($column->options, 'sort_type'), '-1') ? 'desc' : 'asc';
diff --git a/tests/Feature/Api2Test.php b/tests/Feature/Api2Test.php
index 2618fff15..cfc4315d4 100644
--- a/tests/Feature/Api2Test.php
+++ b/tests/Feature/Api2Test.php
@@ -662,6 +662,56 @@ public function testGetValuesWithChildren2()
         }
     }
 
+    /**
+     * Getting values parents(1:N), and match ids
+     */
+    /**
+     * @return void
+     */
+    public function testGetValuesWithParents()
+    {
+        $token = $this->getAdminAccessToken([ApiScope::VALUE_READ]);
+
+        $response = $this->withHeaders([
+            'Authorization' => "Bearer $token",
+        ])->get(admin_urls('api', 'data', TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE).'?parents=1&count=5')
+            ->assertStatus(200)
+            ->assertJsonCount(5, 'data');
+
+        // check children
+        $json = json_decode_ex($response->baseResponse->getContent(), true);
+        $data = array_get($json, 'data');
+
+        foreach ($data as $d) {
+            $this->_testParentsValues($d, TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE, array_get($d, 'id'));
+        }
+    }
+
+    /**
+     * Getting values parents(N:N), and match ids
+     */
+    /**
+     * @return void
+     */
+    public function testGetValuesWithParents2()
+    {
+        $token = $this->getAdminAccessToken([ApiScope::VALUE_READ]);
+
+        $response = $this->withHeaders([
+            'Authorization' => "Bearer $token",
+        ])->get(admin_urls('api', 'data', TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE_MANY_TO_MANY).'?parents=1&count=5&page=2')
+            ->assertStatus(200)
+            ->assertJsonCount(5, 'data');
+
+        // check children
+        $json = json_decode_ex($response->baseResponse->getContent(), true);
+        $data = array_get($json, 'data');
+
+        foreach ($data as $d) {
+            $this->_testParentsValues($d, TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE_MANY_TO_MANY, array_get($d, 'id'));
+        }
+    }
+
     /**
      * @return void
      */
@@ -808,6 +858,52 @@ public function testGetValueWithChildren2()
         $this->_testChildrenValues($d, TestDefine::TESTDATA_TABLE_NAME_PARENT_TABLE_MANY_TO_MANY, array_get($d, 'id'));
     }
 
+    /**
+     * Getting value with parents, and match ids
+     */
+    /**
+     * @return void
+     */
+    public function testGetValueWithParents()
+    {
+        $token = $this->getAdminAccessToken([ApiScope::VALUE_READ]);
+
+        $response = $this->withHeaders([
+            'Authorization' => "Bearer $token",
+        ])->get(admin_urls('api', 'data', TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE, '1?parents=1'))
+            ->assertStatus(200)
+            ->assertJsonFragment([
+                'id' => 1
+            ]);
+
+        // check children
+        $d = json_decode_ex($response->baseResponse->getContent(), true);
+        $this->_testParentsValues($d, TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE, array_get($d, 'id'));
+    }
+
+    /**
+     * Getting value with parents, and match ids
+     */
+    /**
+     * @return void
+     */
+    public function testGetValueWithParents2()
+    {
+        $token = $this->getAdminAccessToken([ApiScope::VALUE_READ]);
+
+        $response = $this->withHeaders([
+            'Authorization' => "Bearer $token",
+        ])->get(admin_urls('api', 'data', TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE_MANY_TO_MANY, '2?parents=1'))
+            ->assertStatus(200)
+            ->assertJsonFragment([
+                'id' => 2
+            ]);
+
+        // check children
+        $d = json_decode_ex($response->baseResponse->getContent(), true);
+        $this->_testParentsValues($d, TestDefine::TESTDATA_TABLE_NAME_CHILD_TABLE_MANY_TO_MANY, array_get($d, 'id'));
+    }
+
     /**
      * @return void
      */
@@ -3038,4 +3134,55 @@ protected function _testChildrenValues($data, $table_name, $id)
             }
         }
     }
+
+    /**
+     * @param mixed $data
+     * @param string $table_name
+     * @param mixed $id
+     * @return void
+     */
+    protected function _testParentsValues($data, $table_name, $id)
+    {
+        $relations = CustomRelation::getRelationsByChild($table_name);
+
+        // Whether has children
+        $this->assertTrue(array_has($data, 'parents'));
+        foreach ($relations as $relation) {
+            $this->assertTrue(array_has($data, 'parents.' . $relation->parent_custom_table_cache->table_name));
+            $parents = array_get($data, 'parents.' . $relation->parent_custom_table_cache->table_name);
+
+            if ($relation->relation_type == RelationType::ONE_TO_MANY) {
+                // Get value directly with parent_id
+                $value = $relation->child_custom_table_cache->getValueQuery()->find($id);
+                $parentId = array_get($parents, 'id');
+                $this->assertTrue($parentId == $value->parent_id, "parent_id expects equals {$value->parent_id}', but {$parentId}.");
+            }
+            ////// Check as n:n
+            else {
+                // get parents id
+                $parents_ids = collect($parents)->map(function ($parent) {
+                    return array_get($parent, 'id');
+                })->toArray();
+
+                // Get value using pivot table
+                $parentIds = \DB::table($relation->getRelationName())
+                    ->where('child_id', $id)
+                    ->select('parent_id')
+                    ->distinct()
+                    ->pluck('parent_id')
+                    ->toArray();
+
+                if (count($parentIds) == 0) {
+                    $this->assertTrue(count($parents_ids) == 0, "{$id}' parents count expects 0, but real count is " . count($parents_ids));
+                } else {
+                    foreach ($parentIds as $parentId) {
+                        $this->assertTrue(in_array($parentId, $parents_ids), "{$parentId} expects containing {$id}' parents, but not has.");
+                    }
+                    foreach ($parents_ids as $parentId) {
+                        $this->assertTrue(in_array($parentId, $parentIds), "{$parentId} expects containing {$id}' parents, but not has.");
+                    }
+                }
+            }
+        }
+    }
 }