Kuroba Yo is a sadistic detective who enjoys nothing more than destroying his targets emotionally and psychologically through his deductive reasoning. Toiro Arata is a... more>> naive and slightly masochistic boy who gets duped by Yo into becoming his assistant, or slave. These two team up to become the "Black & White" detective, solving crimes and chasing after criminals. <<less

It’s about a goodhearted boy named Takashi who murdered his teacher at age of 13, to protect his childhood friend Yui. The story revolves around... more>> tragedies happening to both of them because of that incident. <<less