Juzo Kimura is a wandering Ronin with a past. 15 years later, after winding up in Edo, he becomes a sword teacher to support his wife and daughter. But he has a dark side to him; at night, he becomes an assassin for hire. The fates of men living double lives cross in the shadows of Edo.
Subaru is investigating the death of of a enemy, Kaneyama but before he died, he undertook a project, which was how to teach seven teenage girls how to use black magic to get revenge on people they don't like, but when one of the girls feels remorse, she is told by the other girls to continue with the black magic. Subaru tries to stop them but the girls think that he is their enemy and put a curse on him.