diff --git a/src/ApiDomain/External/Video/config/routes.php b/src/ApiDomain/External/Video/config/routes.php
new file mode 100644
index 0000000..7b3cc22
--- /dev/null
+++ b/src/ApiDomain/External/Video/config/routes.php
@@ -0,0 +1,16 @@
+<?php
+
+use MyTube\API\External\Health\Handler\HealthHandler;
+
+return [
+    [
+        'name' => 'health',
+        'path' => '/api/health',
+        'allowed_methods' => ['GET'],
+        'middleware' => [
+            HealthHandler::class
+        ],
+    ],
+];
+
+?>
\ No newline at end of file
diff --git a/src/ApiDomain/External/Video/config/service_manager.php b/src/ApiDomain/External/Video/config/service_manager.php
new file mode 100644
index 0000000..6a17420
--- /dev/null
+++ b/src/ApiDomain/External/Video/config/service_manager.php
@@ -0,0 +1,12 @@
+<?php
+
+use MyTube\API\External\Health\Handler\HealthHandler;
+use Reinfi\DependencyInjection\Factory\AutoWiringFactory;
+
+return [
+    'factories' => [
+        HealthHandler::class => AutoWiringFactory::class
+    ],
+]
+
+?>
\ No newline at end of file
diff --git a/src/ApiDomain/External/Video/src/ConfigProvider.php b/src/ApiDomain/External/Video/src/ConfigProvider.php
new file mode 100644
index 0000000..d4d3beb
--- /dev/null
+++ b/src/ApiDomain/External/Video/src/ConfigProvider.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MyTube\API\External\Health;
+
+class ConfigProvider
+{
+    public function __invoke(): array
+    {
+        return [
+            'dependencies' => require  __DIR__ . './../config/service_manager.php',
+            'routes' => require __DIR__ . '/./../config/routes.php',
+        ];
+    }
+}
diff --git a/src/DataDomain/Business/src/Entity/Video.php b/src/DataDomain/Business/src/Entity/Video.php
new file mode 100644
index 0000000..8b759dc
--- /dev/null
+++ b/src/DataDomain/Business/src/Entity/Video.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace MyTube\Data\Business\Entity;
+
+use DateTime;
+use Doctrine\ORM\Mapping as ORM;
+use MyTube\Infrastructure\UuidGenerator\UuidGenerator;
+use Ramsey\Uuid\UuidInterface;
+
+/**
+ * @ORM\Entity(repositoryClass="MyTube\Data\Business\Repository\RegistrationRepository")
+ * @ORM\Table(name="registration")
+ */
+class Registration {
+    /**
+     * @ORM\Id
+     * @ORM\Column(name="id", type="uuid_binary_ordered_time")
+     */
+    private UuidInterface $id;
+
+    /** @ORM\Column(name="username", type="string") */
+    private string $username;
+    
+    /** @ORM\Column(name="mail", type="string") */
+    private string $mail;
+
+    /** @ORM\Column(name="created_at", type="datetime") */
+    private DateTime $createdAt;
+
+
+    public function __construct() {
+        $this->id = UuidGenerator::generate();
+        
+        $now = new DateTime();
+        $this->setCreatedAt($now);
+    }
+
+
+    public function getId(): UuidInterface {
+        return $this->id;
+    }
+
+    public function getUsername(): string {
+        return $this->username;
+    }
+
+    public function setUsername(string $username): void {
+        $this->username = $username;
+    }
+
+    public function getMail(): ?string {
+        return $this->mail;
+    }
+
+    public function setMail(?string $mail): void {
+        $this->mail = $mail;
+    }
+
+    public function getCreatedAt(): DateTime {
+        return $this->createdAt;
+    }
+
+    public function setCreatedAt(DateTime $createdAt): void {
+        $this->createdAt = $createdAt;
+    }
+}
diff --git a/src/DataDomain/Business/src/Repository/VideoRepository.php b/src/DataDomain/Business/src/Repository/VideoRepository.php
new file mode 100644
index 0000000..737519a
--- /dev/null
+++ b/src/DataDomain/Business/src/Repository/VideoRepository.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace MyTube\Data\Business\Repository;
+
+use MyTube\Data\Business\Entity\Registration;
+use Doctrine\ORM\EntityRepository;
+
+class RegistrationRepository extends EntityRepository {
+    public function findByIdentifier(string $identifier) : ?Registration {
+        $queryBuilder = $this->createQueryBuilder('r');
+        $queryBuilder->where(
+            $queryBuilder->expr()->orX(
+                $queryBuilder->expr()->eq('r.username', ':identifier'),
+                $queryBuilder->expr()->eq('r.mail', ':identifier')
+            )
+        )
+        ->setParameter('identifier', $identifier);
+        $query = $queryBuilder->getQuery();
+
+        /** @var ?Registration $registration */
+        $registration = $query->execute()[0] ?? null;
+        return $registration;
+    }
+}
\ No newline at end of file
diff --git a/src/HandlingDomain/Video/config/service_manager.php b/src/HandlingDomain/Video/config/service_manager.php
new file mode 100644
index 0000000..fb94f93
--- /dev/null
+++ b/src/HandlingDomain/Video/config/service_manager.php
@@ -0,0 +1,31 @@
+<?php
+
+use MyTube\Handling\UserSession\Builder\UserSessionBuilder;
+use MyTube\Handling\UserSession\Handler\Command\LoginUser\LoginUserCommandBuilder;
+use MyTube\Handling\UserSession\Handler\Command\LoginUser\LoginUserCommandHandler;
+use MyTube\Handling\UserSession\Handler\Command\LogoutUser\LogoutUserCommandBuilder;
+use MyTube\Handling\UserSession\Handler\Command\LogoutUser\LogoutUserCommandHandler;
+use MyTube\Handling\UserSession\Rule\UserPasswordMatchesRule;
+use Reinfi\DependencyInjection\Factory\AutoWiringFactory;
+use Reinfi\DependencyInjection\Factory\InjectionFactory;
+
+
+return [
+    'factories' => [
+
+        /// Rule
+        UserPasswordMatchesRule::class => AutoWiringFactory::class,
+
+        /// Builder
+        UserSessionBuilder::class => AutoWiringFactory::class,
+
+        /// CQRS
+        // Login User
+        LoginUserCommandHandler::class => InjectionFactory::class,
+        LoginUserCommandBuilder::class => AutoWiringFactory::class,
+
+        // Logout User
+        LogoutUserCommandHandler::class => InjectionFactory::class,
+        LogoutUserCommandBuilder::class => AutoWiringFactory::class,
+    ],
+];
diff --git a/src/HandlingDomain/Video/src/ConfigProvider.php b/src/HandlingDomain/Video/src/ConfigProvider.php
new file mode 100644
index 0000000..92ee2eb
--- /dev/null
+++ b/src/HandlingDomain/Video/src/ConfigProvider.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MyTube\Handling\UserSession;
+
+class ConfigProvider
+{
+    public function __invoke(): array
+    {
+        return [
+            'dependencies' => require __DIR__ . '/./../config/service_manager.php',
+        ];
+    }
+}