The Black Lion Society, whose hometown was devastated by the Sweet Angels, has been capturing people they suspect and subjecting them to pleasurable torture in the name of interrogation. - Meanwhile, a girl, Yuri, is wandering around the city in search of her missing companion... She gets information that the person who has been abducted is the Black Lion Society, so she goes alone to the office of the Black Lion Society, but... she is given an aphrodisiac drug by an evil adult. - She was made to drink a drink, tied up, and subjected to pleasure torture! - Will Yuuri be able to withstand the most powerful pleasure torture in history?