A school is host to a variety of supernatural beings and incidents. The best teacher for such a school is Nube, a teacher with a demon's hand who serves as an exorcist.

A middle-aged man is sent to another world, and uses his shopping skills to his advantage!.

After he witnesses his father’s murder at the family dojo, Ryo Hazuki dedicates his life to finding the man responsible — a mission that takes him from the streets of Yokosuka, Japan to the sprawling metropolis of Hong Kong, and beyond. Soon he’ll learn that larger, mystical forces are at play as he trains to become the ultimate martial artist in his quest for revenge.