Demon Slayer: Mission After Rebirth

Because of an accident, Ying Suye was reborn in the world of Demon Slayer: Kimetsu no Yaiba. At first, he just wanted to be a passerby, but because of some things, he finally took to the road of revenge. Under the sunshine, Wu Mei successfully turned to ashes. At this time, a person took him through many worlds, making Wu Mei realize his shortcomings. When he woke up again, he found that he was reborn. He planned to rule the world, but the original world was subtly changing.