Emi was fed up with Kazuki's frivolousness and decided to break up with him. However, even after the breakup, Kazuki still came to see her, with the same attitude as when they were dating. She couldn't refuse her ex-boyfriend, and instead of just meeting up, their physical relationship continued. Then, one day, while Emi was still reeling from the afterglow of her love, a man named Kazuki appeared in front of her...