An otherworldly school story unfolds with the two protagonists.
After a confrontation with the great detective, the terrifying criminal James Moriarty meets his end. Suddenly, he finds himself reincarnated in another world as a unfortunate, beautiful lady, Shelly Moriarty who's being bullied!
With his sharp intellect and the power of the perfect crime equation, he unleashes his abilities for the sake of the lone girl. A cold, calculating revenge drama by the two Moriartys begins...!!!