diff --git a/Api/Program.cs b/Api/Program.cs
index d1d6b44..97ff122 100644
--- a/Api/Program.cs
+++ b/Api/Program.cs
@@ -1,6 +1,7 @@
 using Api.Extensions;
 using Api.GlobalException;
 using Application.Models.Configurations;
+using Infrastructure.BackgroundServices;
 using Infrastructure.DependencyInjection;
 using Microsoft.EntityFrameworkCore;
 using Persistence.Context;
@@ -18,9 +19,8 @@
 builder.Services.AddSwaggerGen();
 
 builder.Services
-    .AddInfrastructureServices()
-    .AddPersistenceRepositories();
-
+    .AddPersistenceRepositories()
+    .AddInfrastructureServices();
 
 builder.Services.AddAuthenticationAndAuthorization(builder.Configuration);
 builder.Services.AddSwagger();
diff --git a/Core/Application/Models/Requests/BanUserRequest.cs b/Core/Application/Models/Requests/BanUserRequest.cs
index 2da6e9f..25a6572 100644
--- a/Core/Application/Models/Requests/BanUserRequest.cs
+++ b/Core/Application/Models/Requests/BanUserRequest.cs
@@ -5,4 +5,6 @@ public class BanUserRequest
     public string UserId { get; set; }
     public DateTime BanDate { get; set; }
     public string ReasonContent { get; set; }
+    public int UnbanAfter { get; set; }
+    public bool UnbanWithHours { get; set; }
 }
diff --git a/Core/Application/Repositories/BannedUserRepository/IReadBannedUserRepository.cs b/Core/Application/Repositories/BannedUserRepository/IReadBannedUserRepository.cs
new file mode 100644
index 0000000..94f7dc1
--- /dev/null
+++ b/Core/Application/Repositories/BannedUserRepository/IReadBannedUserRepository.cs
@@ -0,0 +1,8 @@
+using Application.Repositories.Repository;
+using Domain.Models;
+
+namespace Application.Repositories.BannedUserRepository;
+
+public interface IReadBannedUserRepository : IReadRepository<BannedUser>
+{
+}
diff --git a/Core/Application/Repositories/BannedUserRepository/IWriteBannedUserRepository.cs b/Core/Application/Repositories/BannedUserRepository/IWriteBannedUserRepository.cs
new file mode 100644
index 0000000..3d94e78
--- /dev/null
+++ b/Core/Application/Repositories/BannedUserRepository/IWriteBannedUserRepository.cs
@@ -0,0 +1,8 @@
+using Application.Repositories.Repository;
+using Domain.Models;
+
+namespace Application.Repositories.BannedUserRepository;
+
+public interface IWriteBannedUserRepository : IWriteRepository<BannedUser>
+{
+}
diff --git a/Core/Application/Repositories/IUnitOfWork.cs b/Core/Application/Repositories/IUnitOfWork.cs
index 473ea64..23e3ed7 100644
--- a/Core/Application/Repositories/IUnitOfWork.cs
+++ b/Core/Application/Repositories/IUnitOfWork.cs
@@ -1,4 +1,5 @@
-using Application.Repositories.BookRepository;
+using Application.Repositories.BannedUserRepository;
+using Application.Repositories.BookRepository;
 using Application.Repositories.CommentRepository;
 using Application.Repositories.CourseRepository;
 using Application.Repositories.UserRepository;
@@ -17,4 +18,7 @@ public interface IUnitOfWork
     IWriteCourseRepository WriteCourseRepository { get; }
     IReadCommentRepository ReadCommentRepository { get; }
     IWriteCommentRepository WriteCommentRepository { get;}
+
+    IReadBannedUserRepository ReadBannedUserRepository { get; }
+    IWriteBannedUserRepository WriteBannedUserRepository { get; }
 }
diff --git a/Domain/Models/BannedUser.cs b/Domain/Models/BannedUser.cs
new file mode 100644
index 0000000..1522079
--- /dev/null
+++ b/Domain/Models/BannedUser.cs
@@ -0,0 +1,10 @@
+using Domain.Models.Common;
+
+namespace Domain.Models;
+
+public class BannedUser : BaseEntity
+{
+    public string ReasonContent { get; set; }
+    public DateTime BannedDate { get; set; }
+    public DateTime UnbanDate { get; set; }
+}
diff --git a/Infrastructure/Infrastructure/BackgroundServices/ForbiddenCommentChecker.cs b/Infrastructure/Infrastructure/BackgroundServices/ForbiddenCommentChecker.cs
new file mode 100644
index 0000000..68df569
--- /dev/null
+++ b/Infrastructure/Infrastructure/BackgroundServices/ForbiddenCommentChecker.cs
@@ -0,0 +1,13 @@
+using Application.Repositories;
+using Microsoft.Extensions.Hosting;
+using Serilog;
+
+namespace Infrastructure.BackgroundServices;
+
+public class ForbiddenCommentChecker : BackgroundService
+{
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        Log.Information("Forbidden Message Checker -- B Service started working.");
+    }
+}
diff --git a/Infrastructure/Infrastructure/DependencyInjection/InfrastructureDependencyInjection.cs b/Infrastructure/Infrastructure/DependencyInjection/InfrastructureDependencyInjection.cs
index cfc5448..bbb17f2 100644
--- a/Infrastructure/Infrastructure/DependencyInjection/InfrastructureDependencyInjection.cs
+++ b/Infrastructure/Infrastructure/DependencyInjection/InfrastructureDependencyInjection.cs
@@ -1,4 +1,5 @@
 using Application.Services;
+using Infrastructure.BackgroundServices;
 using Infrastructure.Services;
 using Microsoft.Extensions.DependencyInjection;
 using System.Runtime.CompilerServices;
@@ -23,6 +24,10 @@ public static IServiceCollection AddInfrastructureServices(this IServiceCollecti
 
         services.AddScoped<IBlobService, BlobService>();
 
+        // hosted services
+
+        services.AddHostedService<ForbiddenCommentChecker>();
+
         return services;
     }
 }
diff --git a/Infrastructure/Persistence/DependencyInjection/PersistenceDependencyInjection.cs b/Infrastructure/Persistence/DependencyInjection/PersistenceDependencyInjection.cs
index 15cc128..a2da0f1 100644
--- a/Infrastructure/Persistence/DependencyInjection/PersistenceDependencyInjection.cs
+++ b/Infrastructure/Persistence/DependencyInjection/PersistenceDependencyInjection.cs
@@ -9,6 +9,8 @@
 using Persistence.Repositories.CourseRepository;
 using Persistence.Repositories.UserRepository;
 using Persistence.Repositories;
+using Application.Repositories.BannedUserRepository;
+using Persistence.Repositories.BannedUserRepository;
 
 namespace Persistence.DependencyInjection;
 
@@ -28,6 +30,9 @@ public static IServiceCollection AddPersistenceRepositories(this IServiceCollect
         services.AddScoped<IReadCommentRepository, ReadCommentRepository>();
         services.AddScoped<IWriteCommentRepository, WriteCommentRepository>();
 
+        services.AddScoped<IReadBannedUserRepository, ReadBannedUserRepository>();
+        services.AddScoped<IWriteBannedUserRepository, WriteBannedUserRepository>();
+
         services.AddScoped<IUnitOfWork, UnitOfWork>();
 
         return services;
diff --git a/Infrastructure/Persistence/Repositories/BannedUserRepository/ReadBannedUserRepository.cs b/Infrastructure/Persistence/Repositories/BannedUserRepository/ReadBannedUserRepository.cs
new file mode 100644
index 0000000..cacc687
--- /dev/null
+++ b/Infrastructure/Persistence/Repositories/BannedUserRepository/ReadBannedUserRepository.cs
@@ -0,0 +1,13 @@
+using Application.Repositories.BannedUserRepository;
+using Domain.Models;
+using Persistence.Context;
+using Persistence.Repositories.Repository;
+
+namespace Persistence.Repositories.BannedUserRepository;
+
+public class ReadBannedUserRepository : ReadRepository<BannedUser>, IReadBannedUserRepository
+{
+    public ReadBannedUserRepository(AppDbContext context) : base(context)
+    {
+    }
+}
diff --git a/Infrastructure/Persistence/Repositories/BannedUserRepository/WriteBannedUserRepository.cs b/Infrastructure/Persistence/Repositories/BannedUserRepository/WriteBannedUserRepository.cs
new file mode 100644
index 0000000..49118c2
--- /dev/null
+++ b/Infrastructure/Persistence/Repositories/BannedUserRepository/WriteBannedUserRepository.cs
@@ -0,0 +1,13 @@
+using Application.Repositories.BannedUserRepository;
+using Domain.Models;
+using Persistence.Context;
+using Persistence.Repositories.Repository;
+
+namespace Persistence.Repositories.BannedUserRepository;
+
+public class WriteBannedUserRepository : WriteRepository<BannedUser>, IWriteBannedUserRepository
+{
+    public WriteBannedUserRepository(AppDbContext context) : base(context)
+    {
+    }
+}
diff --git a/Infrastructure/Persistence/Repositories/UnitOfWork.cs b/Infrastructure/Persistence/Repositories/UnitOfWork.cs
index 9fc71f4..e4a137c 100644
--- a/Infrastructure/Persistence/Repositories/UnitOfWork.cs
+++ b/Infrastructure/Persistence/Repositories/UnitOfWork.cs
@@ -1,4 +1,5 @@
 using Application.Repositories;
+using Application.Repositories.BannedUserRepository;
 using Application.Repositories.BookRepository;
 using Application.Repositories.CommentRepository;
 using Application.Repositories.CourseRepository;
@@ -8,7 +9,7 @@ namespace Persistence.Repositories;
 
 public class UnitOfWork : IUnitOfWork
 {
-    public UnitOfWork(IReadBookRepository readBookRepository, IWriteBookRepository writeBookRepository, IReadUserRepository readUserRepository, IWriteUserRepository writeUserRepository, IReadCourseRepository readCourseRepository, IWriteCourseRepository writeCourseRepository, IReadCommentRepository readCommentRepository, IWriteCommentRepository writeCommentRepository)
+    public UnitOfWork(IReadBookRepository readBookRepository, IWriteBookRepository writeBookRepository, IReadUserRepository readUserRepository, IWriteUserRepository writeUserRepository, IReadCourseRepository readCourseRepository, IWriteCourseRepository writeCourseRepository, IReadCommentRepository readCommentRepository, IWriteCommentRepository writeCommentRepository, IReadBannedUserRepository readBannedUserRepository, IWriteBannedUserRepository writeBannedUserRepository)
     {
         ReadBookRepository = readBookRepository;
         WriteBookRepository = writeBookRepository;
@@ -18,6 +19,8 @@ public UnitOfWork(IReadBookRepository readBookRepository, IWriteBookRepository w
         WriteCourseRepository = writeCourseRepository;
         ReadCommentRepository = readCommentRepository;
         WriteCommentRepository = writeCommentRepository;
+        ReadBannedUserRepository = readBannedUserRepository;
+        WriteBannedUserRepository = writeBannedUserRepository;
     }
 
     public IReadBookRepository ReadBookRepository { get; }
@@ -28,4 +31,6 @@ public UnitOfWork(IReadBookRepository readBookRepository, IWriteBookRepository w
     public IWriteCourseRepository WriteCourseRepository { get; }
     public IReadCommentRepository ReadCommentRepository { get; }
     public IWriteCommentRepository WriteCommentRepository { get; }
+    public IReadBannedUserRepository ReadBannedUserRepository { get; }
+    public IWriteBannedUserRepository WriteBannedUserRepository { get; }
 }