diff --git a/database/migrations/2025_10_14_135811_add_role_and_is_active_to_users_table.php b/database/migrations/2025_10_14_135811_add_role_and_is_active_to_users_table.php
new file mode 100644
index 0000000..b62fffa
--- /dev/null
+++ b/database/migrations/2025_10_14_135811_add_role_and_is_active_to_users_table.php
@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->enum('role', ['sales', 'ops'])->default('sales')->after('email');
+            $table->boolean('is_active')->default(true)->after('role');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->dropColumn(['role', 'is_active']);
+        });
+    }
+};
diff --git a/database/migrations/2025_10_14_135811_create_prospects_table.php b/database/migrations/2025_10_14_135811_create_prospects_table.php
new file mode 100644
index 0000000..3be0c3e
--- /dev/null
+++ b/database/migrations/2025_10_14_135811_create_prospects_table.php
@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('prospects', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('sales_user_id')->constrained('users')->onDelete('cascade');
+            $table->string('company_name', 100);
+            $table->string('contact_person', 100)->nullable();
+            $table->string('email', 100)->nullable();
+            $table->string('phone', 20)->nullable();
+            $table->text('notes')->nullable();
+            $table->timestamps();
+
+            $table->index('sales_user_id');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('prospects');
+    }
+};
diff --git a/database/migrations/2025_10_14_135812_create_demo_links_table.php b/database/migrations/2025_10_14_135812_create_demo_links_table.php
new file mode 100644
index 0000000..d2bb5c7
--- /dev/null
+++ b/database/migrations/2025_10_14_135812_create_demo_links_table.php
@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('demo_links', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('prospect_id')->constrained('prospects')->onDelete('cascade');
+            $table->foreignId('created_by')->constrained('users')->onDelete('cascade');
+            $table->string('token', 64)->unique();
+            $table->enum('status', ['active', 'expired', 'revoked'])->default('active');
+            $table->timestamp('expires_at');
+            $table->unsignedInteger('visit_count')->default(0);
+            $table->timestamps();
+
+            $table->index(['token', 'status']);
+            $table->index('prospect_id');
+            $table->index('created_by');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('demo_links');
+    }
+};
diff --git a/database/seeders/DemoSystemSeeder.php b/database/seeders/DemoSystemSeeder.php
new file mode 100644
index 0000000..acf4e40
--- /dev/null
+++ b/database/seeders/DemoSystemSeeder.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace Database\Seeders;
+
+use Illuminate\Database\Seeder;
+use Shared\Models\Members\User;
+use Shared\Models\Sales\Prospect;
+use Shared\Models\Sales\DemoLink;
+use Illuminate\Support\Facades\Hash;
+
+class DemoSystemSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     */
+    public function run(): void
+    {
+        // 1. Ops 계정 생성
+        $ops = User::create([
+            'user_id' => 'OPS001',
+            'name' => 'Ops Admin',
+            'email' => 'ops@sam.kr',
+            'password' => Hash::make('password'),
+            'role' => 'ops',
+            'is_active' => true,
+        ]);
+
+        echo "✅ Ops 계정 생성: ops@sam.kr / password\n";
+
+        // 2. Sales 계정 생성
+        $sales = User::create([
+            'user_id' => 'SALES001',
+            'name' => 'Sales User',
+            'email' => 'sales@sam.kr',
+            'password' => Hash::make('password'),
+            'role' => 'sales',
+            'is_active' => true,
+        ]);
+
+        echo "✅ Sales 계정 생성: sales@sam.kr / password\n";
+
+        // 3. 샘플 업체 생성
+        $prospect = Prospect::create([
+            'sales_user_id' => $sales->id,
+            'company_name' => '테스트 고객사',
+            'contact_person' => '홍길동',
+            'email' => 'test@example.com',
+            'phone' => '010-1234-5678',
+            'notes' => 'MVP 테스트용 샘플 업체입니다.',
+        ]);
+
+        echo "✅ 샘플 업체 생성: {$prospect->company_name}\n";
+
+        // 4. 샘플 데모 링크 생성 (3일 만료)
+        $demoLink = DemoLink::create([
+            'prospect_id' => $prospect->id,
+            'created_by' => $sales->id,
+            'token' => DemoLink::generateToken(),
+            'status' => 'active',
+            'expires_at' => now()->addDays(3),
+            'visit_count' => 0,
+        ]);
+
+        echo "✅ 샘플 데모 링크 생성: http://dev.sam.kr/d/{$demoLink->token}\n";
+        echo "\n";
+        echo "🎉 데모 시스템 시더 완료!\n";
+        echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n";
+        echo "Ops 로그인: ops@sam.kr / password\n";
+        echo "Sales 로그인: sales@sam.kr / password\n";
+        echo "데모 링크: http://dev.sam.kr/d/{$demoLink->token}\n";
+        echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n";
+    }
+}