This is an anti-conventional rebirth novel. It does not write about the male protagonist turning around, but only writes that after his scumbag death, Lord Yama will not let him go to hell, but will give him a harsher punishment than going to hell - learning to be a good person.
Intention: The Lord of Hell stuffed a top-notch scumbag into several bodies called Maodu to observe and learn from him, preventing him from going to hell and allowing him to be reborn again and again. This may also be the reform measure of the Palace of Hell.