​Ishizuka Kengo, a new teacher at his alma mater, is tasked with caring for the old school building until its demolition. However, little do others know that Ishizuka sees this as an opportunity to indulge in his dark desires. His first target is Morimiya Saki, a student at the school, but soon he sets his sights on Saki’s friend Arisa, Saki’s mother Rie, and another teacher, Mashima Mikako. What will happen to these four individuals under the sadistic teacher’s control? Bishop brings you a thrilling and enticing hentai adaptation based on their game. Brace yourself for a twisted tale of power dynamics, domination, and unbounded pleasures.​