Wo! Tianming Fanpai Bei Chengle Zhengdao Lao Zu

A man who died from overwork enters the mental system he developed, known as the most powerful villain system ever created. Within it, he becomes the demon lord, the strongest villain. Despite his overwhelming power to eliminate all humans in the world with ease, he has no desire to do so. Instead, he wishes to live out a peaceful retirement in this system. As the most laid-back main character interacts with the most diligent system, they defy typical expectations. The story explores unconventional ideas and the pursuit of a fulfilling life, seeking to obtain everything he desires.