Ghost Slayer: The Strongest Swordsman

Traveling back to the anime world of "Demon Slayer: Blade", he became a good friend of Tanjuro Kamado, but within a few years, Tanjuro Kamado's health became worse and worse, and Su Mu was able to help him while he was dying. He takes care of his wife and daughter.
Facing Zaomen Tan Shilang's request, Su Mu chose to agree.
However, in the face of this world full of evil spirits and the impending disaster of the Zaomen family, he can only think of ways.