diff --git a/app/Http/Requests/StudySeriesRequest.php b/app/Http/Requests/StudySeriesRequest.php
new file mode 100644
index 0000000..ebacfcb
--- /dev/null
+++ b/app/Http/Requests/StudySeriesRequest.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StudySeriesRequest extends FormRequest
+{
+    public function rules(): array
+    {
+        return [
+            'study_id' => ['required', 'exists:studies'],
+            'body_part_examined' => ['nullable'],
+            'series_description' => ['nullable'],
+            'series_date' => ['nullable', 'date'],
+            'series_number' => ['required'],
+        ];
+    }
+
+    public function authorize(): bool
+    {
+        return true;
+    }
+}
diff --git a/app/Http/Resources/StudySeriesResource.php b/app/Http/Resources/StudySeriesResource.php
new file mode 100644
index 0000000..7acaf32
--- /dev/null
+++ b/app/Http/Resources/StudySeriesResource.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Http\Resources;
+
+use App\Models\StudySeries;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/** @mixin StudySeries */
+class StudySeriesResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'body_part_examined' => $this->body_part_examined,
+            'series_description' => $this->series_description,
+            'series_date' => $this->series_date,
+            'series_number' => $this->series_number,
+            'created_at' => $this->created_at,
+            'updated_at' => $this->updated_at,
+
+            'study_id' => $this->study_id,
+        ];
+    }
+}
diff --git a/app/Models/StudySeries.php b/app/Models/StudySeries.php
new file mode 100644
index 0000000..0060cb4
--- /dev/null
+++ b/app/Models/StudySeries.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class StudySeries extends Model
+{
+    public function study(): BelongsTo
+    {
+        return $this->belongsTo(Study::class);
+    }
+
+    protected function casts(): array
+    {
+        return [
+            'series_date' => 'datetime',
+        ];
+    }
+}
diff --git a/database/factories/UserFactory.php b/database/factories/UserFactory.php
index 9fc5606..0141493 100644
--- a/database/factories/UserFactory.php
+++ b/database/factories/UserFactory.php
@@ -35,7 +35,7 @@ public function definition(): array
             'email' => fake()->unique()->safeEmail(),
             'email_verified_at' => now(),
             'phone' => fake()->phoneNumber(),
-            'role' => static::$role ??= UserRole::Technician->value,
+            'user_role' => static::$role ??= UserRole::Guest->value,
             'password' => static::$password ??= Hash::make('password'),
             'two_factor_secret' => null,
             'two_factor_recovery_codes' => null,
diff --git a/database/migrations/0001_01_01_000000_create_users_table.php b/database/migrations/0001_01_01_000000_create_users_table.php
index 5b75906..ff26ead 100644
--- a/database/migrations/0001_01_01_000000_create_users_table.php
+++ b/database/migrations/0001_01_01_000000_create_users_table.php
@@ -26,7 +26,6 @@ public function up(): void
             $table->foreignId('current_team_id')->nullable();
             $table->string('profile_photo_path')->nullable();
             $table->foreignIdFor(Institute::class)->nullable()->index();
-            $table->string('avatar')->nullable();
             $table->string('timezone')->default('Asia/Dhaka');
             $table->timestamps();
         });
diff --git a/database/migrations/2024_12_30_130820_create_study_series_table.php b/database/migrations/2024_12_30_130820_create_study_series_table.php
new file mode 100644
index 0000000..69b1449
--- /dev/null
+++ b/database/migrations/2024_12_30_130820_create_study_series_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('study_series', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('study_id')->constrained('studies')->cascadeOnDelete();
+            $table->string('orthanc_uid')->unique();
+            $table->dateTime('series_date');
+            $table->string('series_instance_uid')->nullable();
+            $table->string('body_part_examined')->nullable();
+            $table->string('series_description')->nullable();
+            $table->string('modality', 4)->nullable();
+            $table->string('series_number')->nullable();
+            $table->string('protocol_name')->nullable();
+            $table->string('sequence_name')->nullable();
+            $table->string('performed_procedure_step_description')->nullable();
+            $table->unsignedSmallInteger('num_instances')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('study_series');
+    }
+};
diff --git a/database/seeders/UserSeeder.php b/database/seeders/UserSeeder.php
index a45f00b..e1d428f 100644
--- a/database/seeders/UserSeeder.php
+++ b/database/seeders/UserSeeder.php
@@ -17,7 +17,7 @@ public function run(): void
             'name' => 'Administrator',
             'username' => 'admin',
             'email' => 'test@example.com',
-            'role' => UserRole::Admin->value,
+            'user_role' => UserRole::Admin->value,
         ]);
 
         $chevron = Institute::where('name', 'Chevron')->first();
@@ -25,12 +25,18 @@ public function run(): void
 
         User::factory(2)->create([
             'institute_id' => $chevron->id,
-            'role' => UserRole::Technician->value,
+            'user_role' => UserRole::Technician->value,
         ]);
 
         User::factory(2)->create([
             'institute_id' => $srini->id,
-            'role' => UserRole::Technician->value,
+            'user_role' => UserRole::Technician->value,
         ]);
+
+        User::factory(2)->create([
+            'user_role' => UserRole::Radiologist->value,
+        ]);
+
+        User::factory(4)->create();
     }
 }