The Fruit of Surgery.

For hand ghosts, the person they hate the most in this life is without a doubt Ryotaki Sakinji. He just became an Oni, and was about to rely on this power to do his best, but he met Ryotaki Sakinji and was caught by the bird The vine attacking the mountain who doesn't shit, became the test object of the ghost killing team.

This is imprinted deep in my heart...