Located in a popular rental apartment complex in Tokyo's downtown area, accessible via three train lines, a building manager has long been secretly controlling numerous female residents. This summer, his targets are a beautiful pair of sisters who have lived there for a year. On the first day, he charms the cheerful younger sister by talking about yoga, uses that opportunity to initiate hypnosis, and is now welcomed into her room like a lover. Tonight, he plans to enjoy affection with the adorable yukata-clad hypnotized doll. On the second day, he infiltrates the older sister's room—newly married—using the younger sister as his pawn. Under the pretext of yoga meditation, he sharpens her senses, alters her memories through sensory overload, fainting, and misidentification, and completely brainwashes her. Of course, he doesn't forget to apply post-hypnotic suggestions, different from those given to the younger sister. On the third day, an unexpected turn occurs: the drunken husband attacks the younger sister, who's aroused from post-hypnotic stimulation. But this only makes things more interesting. He successfully provokes the older sister's jealousy, drawing out the sisters' true feelings. In exchange for giving the husband pleasure, he ensures the man surrenders his body completely. On the fourth day, the older sister—who would never approve of his relationship with Lenon under normal circumstances—is made fully aware through conscious reinforcement. He dominates both her resisting body and mind until she finally submits. In the end, she declares, "This apartment complex is under my control." And so, the domination continues—tomorrow, and the day after that.