diff --git a/app/Couple.php b/app/Couple.php
index c512e02..6427682 100644
--- a/app/Couple.php
+++ b/app/Couple.php
@@ -28,4 +28,9 @@ class Couple extends Model
         $user->mother_id = $this->wife_id;
         $user->save();
     }
+
+    public function manager()
+    {
+        return $this->belongsTo(User::class);
+    }
 }
diff --git a/composer.lock b/composer.lock
index 903c745..999bca7 100644
--- a/composer.lock
+++ b/composer.lock
@@ -78,12 +78,12 @@
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                 "type": "git",
                 "url": "https://github.com/backup-manager/laravel.git",
-                "reference": "b7feabc809dbd27c8bff73b9a73aea9d267e9d38"
+                "reference": "091374d1da68af269b19c302553e9cea560b5645"
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                 "type": "zip",
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-                "reference": "b7feabc809dbd27c8bff73b9a73aea9d267e9d38",
+                "url": "https://api.github.com/repos/backup-manager/laravel/zipball/091374d1da68af269b19c302553e9cea560b5645",
+                "reference": "091374d1da68af269b19c302553e9cea560b5645",
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@@ -131,7 +131,7 @@
                 }
             ],
             "description": "Database backup manager seamlessly integrated with Laravel 4 or 5 with user-definable procedures and support for S3, Dropbox, FTP, SFTP, and more.",
-            "time": "2017-09-27T05:15:29+00:00"
+            "time": "2017-09-28T05:28:29+00:00"
         },
         {
             "name": "dnoegel/php-xdg-base-dir",
@@ -475,16 +475,16 @@
         },
         {
             "name": "laravel/framework",
-            "version": "v5.5.13",
+            "version": "v5.5.18",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laravel/framework.git",
-                "reference": "bfbe20d32ee9f98c89df852847827407a5127be4"
+                "reference": "1cc21baac11551377734b8c17ead17db4c34fe21"
             },
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-                "url": "https://api.github.com/repos/laravel/framework/zipball/bfbe20d32ee9f98c89df852847827407a5127be4",
-                "reference": "bfbe20d32ee9f98c89df852847827407a5127be4",
+                "url": "https://api.github.com/repos/laravel/framework/zipball/1cc21baac11551377734b8c17ead17db4c34fe21",
+                "reference": "1cc21baac11551377734b8c17ead17db4c34fe21",
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             "require": {
@@ -525,7 +525,6 @@
                 "illuminate/database": "self.version",
                 "illuminate/encryption": "self.version",
                 "illuminate/events": "self.version",
-                "illuminate/exception": "self.version",
                 "illuminate/filesystem": "self.version",
                 "illuminate/hashing": "self.version",
                 "illuminate/http": "self.version",
@@ -603,7 +602,7 @@
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                 "laravel"
             ],
-            "time": "2017-09-24T19:09:38+00:00"
+            "time": "2017-10-19T12:50:26+00:00"
         },
         {
             "name": "laravel/tinker",
@@ -818,20 +817,20 @@
         },
         {
             "name": "luthfi/formfield",
-            "version": "0.2.0",
+            "version": "0.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nafiesl/FormField.git",
-                "reference": "ef00f4446acc3c6d454aef2563510cb1b3439e5f"
+                "reference": "26a491ef89f187024d26913872c66b42a310b9b0"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nafiesl/FormField/zipball/ef00f4446acc3c6d454aef2563510cb1b3439e5f",
-                "reference": "ef00f4446acc3c6d454aef2563510cb1b3439e5f",
+                "url": "https://api.github.com/repos/nafiesl/FormField/zipball/26a491ef89f187024d26913872c66b42a310b9b0",
+                "reference": "26a491ef89f187024d26913872c66b42a310b9b0",
                 "shasum": ""
             },
             "require": {
-                "laravelcollective/html": "5.5.*",
+                "laravelcollective/html": "5.3.* || 5.4.* || 5.5.*",
                 "php": ">=7.0"
             },
             "require-dev": {
@@ -866,7 +865,7 @@
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             ],
             "description": "Laravel Form Field the extension of Laravelcollective Form for Laravel 5.3, 5.4 and 5.5 with Twitter Bootstrap 3",
-            "time": "2017-09-04T23:41:01+00:00"
+            "time": "2017-10-09T01:45:40+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -1288,16 +1287,16 @@
         },
         {
             "name": "psy/psysh",
-            "version": "v0.8.11",
+            "version": "v0.8.13",
             "source": {
                 "type": "git",
                 "url": "https://github.com/bobthecow/psysh.git",
-                "reference": "b193cd020e8c6b66cea6457826ae005e94e6d2c0"
+                "reference": "cdb5593c3684bab74e10fcfffe4a0c8d1c39695d"
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-                "reference": "b193cd020e8c6b66cea6457826ae005e94e6d2c0",
+                "url": "https://api.github.com/repos/bobthecow/psysh/zipball/cdb5593c3684bab74e10fcfffe4a0c8d1c39695d",
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@@ -1357,7 +1356,7 @@
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+            "time": "2017-10-19T06:13:20+00:00"
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@@ -1443,16 +1442,16 @@
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             "name": "swiftmailer/swiftmailer",
-            "version": "v6.0.1",
+            "version": "v6.0.2",
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                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "008f088d535ed3333af5ad804dd4c0eaf97c2805"
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@@ -1488,26 +1487,26 @@
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             "description": "Swiftmailer, free feature-rich PHP mailer",
-            "homepage": "http://swiftmailer.org",
+            "homepage": "http://swiftmailer.symfony.com",
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                 "email",
                 "mail",
                 "mailer"
             ],
-            "time": "2017-05-20T06:20:27+00:00"
+            "time": "2017-09-30T22:39:41+00:00"
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-            "version": "v3.3.9",
+            "version": "v3.3.10",
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                 "url": "https://github.com/symfony/console.git",
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@@ -1562,20 +1561,20 @@
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+            "time": "2017-10-02T06:42:24+00:00"
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-            "version": "v3.3.9",
+            "version": "v3.3.10",
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@@ -1615,20 +1614,20 @@
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+            "time": "2017-10-02T06:42:24+00:00"
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-            "version": "v3.3.9",
+            "version": "v3.3.10",
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                 "url": "https://github.com/symfony/debug.git",
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@@ -1671,20 +1670,20 @@
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+            "time": "2017-10-02T06:42:24+00:00"
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-            "version": "v3.3.9",
+            "version": "v3.3.10",
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                 "url": "https://github.com/symfony/event-dispatcher.git",
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@@ -1981,20 +1980,20 @@
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-                "reference": "89fcb5a73e0ede2be2512234c4e40457bb22b35f",
+                "url": "https://api.github.com/repos/symfony/var-dumper/zipball/03e3693a36701f1c581dd24a6d6eea2eba2113f6",
+                "reference": "03e3693a36701f1c581dd24a6d6eea2eba2113f6",
                 "shasum": ""
             },
             "require": {
@@ -2241,7 +2240,7 @@
                 "debug",
                 "dump"
             ],
-            "time": "2017-08-27T14:52:21+00:00"
+            "time": "2017-10-02T06:42:24+00:00"
         },
         {
             "name": "tijsverkoyen/css-to-inline-styles",
@@ -2716,37 +2715,40 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.6.1",
+            "version": "1.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102"
+                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/8e6e04167378abf1ddb4d3522d8755c5fd90d102",
-                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
+                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.4.0"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "doctrine/collections": "1.*",
-                "phpunit/phpunit": "~4.1"
+                "doctrine/collections": "^1.0",
+                "doctrine/common": "^2.6",
+                "phpunit/phpunit": "^4.1"
             },
             "type": "library",
             "autoload": {
                 "psr-4": {
                     "DeepCopy\\": "src/DeepCopy/"
-                }
+                },
+                "files": [
+                    "src/DeepCopy/deep_copy.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
             "description": "Create deep copies (clones) of your objects",
-            "homepage": "https://github.com/myclabs/DeepCopy",
             "keywords": [
                 "clone",
                 "copy",
@@ -2754,7 +2756,7 @@
                 "object",
                 "object graph"
             ],
-            "time": "2017-04-12T18:52:22+00:00"
+            "time": "2017-10-19T19:58:43+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -3319,16 +3321,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "6.3.1",
+            "version": "6.4.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "c0ff817b36a827e64bf5f57bc72278150cf30a77"
+                "reference": "06b28548fd2b4a20c3cd6e247dc86331a7d4db13"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/c0ff817b36a827e64bf5f57bc72278150cf30a77",
-                "reference": "c0ff817b36a827e64bf5f57bc72278150cf30a77",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/06b28548fd2b4a20c3cd6e247dc86331a7d4db13",
+                "reference": "06b28548fd2b4a20c3cd6e247dc86331a7d4db13",
                 "shasum": ""
             },
             "require": {
@@ -3373,7 +3375,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.3.x-dev"
+                    "dev-master": "6.4.x-dev"
                 }
             },
             "autoload": {
@@ -3399,7 +3401,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-09-24T07:25:54+00:00"
+            "time": "2017-10-16T13:18:59+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
@@ -4021,16 +4023,16 @@
         },
         {
             "name": "symfony/dom-crawler",
-            "version": "v3.3.9",
+            "version": "v3.3.10",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dom-crawler.git",
-                "reference": "6b511d7329b203a620f09a2288818d27dcc915ae"
+                "reference": "40dafd42d5dad7fe5ad4e958413d92a207522ac1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dom-crawler/zipball/6b511d7329b203a620f09a2288818d27dcc915ae",
-                "reference": "6b511d7329b203a620f09a2288818d27dcc915ae",
+                "url": "https://api.github.com/repos/symfony/dom-crawler/zipball/40dafd42d5dad7fe5ad4e958413d92a207522ac1",
+                "reference": "40dafd42d5dad7fe5ad4e958413d92a207522ac1",
                 "shasum": ""
             },
             "require": {
@@ -4073,7 +4075,7 @@
             ],
             "description": "Symfony DomCrawler Component",
             "homepage": "https://symfony.com",
-            "time": "2017-09-11T15:55:22+00:00"
+            "time": "2017-10-02T06:42:24+00:00"
         },
         {
             "name": "theseer/tokenizer",
diff --git a/database/factories/ModelFactory.php b/database/factories/ModelFactory.php
index dc96fc0..1ce8110 100644
--- a/database/factories/ModelFactory.php
+++ b/database/factories/ModelFactory.php
@@ -42,5 +42,8 @@ $factory->define(Couple::class, function (Faker\Generator $faker) {
         'wife_id' => function () {
             return factory(User::class)->states('female')->create()->id;
         },
+        'manager_id' => function () {
+            return factory(User::class)->create()->id;
+        },
     ];
 });
\ No newline at end of file
diff --git a/database/migrations/2014_10_12_000000_create_users_table.php b/database/migrations/2014_10_12_000000_create_users_table.php
index a3e4633..c1b28f4 100644
--- a/database/migrations/2014_10_12_000000_create_users_table.php
+++ b/database/migrations/2014_10_12_000000_create_users_table.php
@@ -29,7 +29,7 @@ class CreateUsersTable extends Migration
             $table->string('address')->nullable();
             $table->string('city')->nullable();
             $table->string('phone')->nullable();
-            $table->unsignedInteger('manager_id')->nullable();
+            $table->unsignedInteger('manager_id');
             $table->rememberToken();
             $table->timestamps();
         });
diff --git a/database/migrations/2017_06_27_151536_create_couples_table.php b/database/migrations/2017_06_27_151536_create_couples_table.php
index be6e069..db733f1 100644
--- a/database/migrations/2017_06_27_151536_create_couples_table.php
+++ b/database/migrations/2017_06_27_151536_create_couples_table.php
@@ -19,6 +19,7 @@ class CreateCouplesTable extends Migration
             $table->unsignedInteger('wife_id');
             $table->date('marriage_date')->nullable();
             $table->date('divorce_date')->nullable();
+            $table->unsignedInteger('manager_id')->nullable();
             $table->timestamps();
 
             $table->unique(['husband_id', 'wife_id']);
diff --git a/tests/Unit/CoupleTest.php b/tests/Unit/CoupleTest.php
index 5b841f1..d8d1967 100644
--- a/tests/Unit/CoupleTest.php
+++ b/tests/Unit/CoupleTest.php
@@ -34,4 +34,11 @@ class CoupleTest extends TestCase
         $this->assertEquals($child->father_id, $couple->husband_id);
         $this->assertEquals($child->mother_id, $couple->wife_id);
     }
+
+    /** @test */
+    public function a_couple_have_a_manager()
+    {
+        $couple = factory(Couple::class)->create();
+        $this->assertTrue($couple->manager instanceof User);
+    }
 }
diff --git a/tests/Unit/UserTest.php b/tests/Unit/UserTest.php
index 57fb09e..5585b97 100644
--- a/tests/Unit/UserTest.php
+++ b/tests/Unit/UserTest.php
@@ -72,4 +72,11 @@ class UserTest extends TestCase
 
         $this->assertEquals($mother->profileLink(), $user->motherLink());
     }
+
+    /** @test */
+    public function a_user_have_a_manager()
+    {
+        $user = factory(User::class)->create();
+        $this->assertTrue($user->manager instanceof User);
+    }
 }