In this endless world, there are innumerable different spaces. Among them, there is a strange space, that is, the demon world space. There is a race called the demon race. And I, Lord Yuwen, is the first demon king to unify the demon kingdom in the history of the demon world. Originally, as the first demon king who unified the demon world, I should feel very honored and happy. However, after the unification, I felt that there was no trouble for my opponent. It was so lonely to be invincible. Now the world of the demon world is peaceful. As the Lord of the demon world, I have nothing to do. I can only have fun with my wife and concubines in the magic hall every day But after a thousand years, I finally got tired of this kind of life.