Konatsu has been dating Yuuto for six months. She continued a fresh relationship, but one day, on her way home from school, she was accosted by a middle-aged man, Gorou, and forcibly taken to his room. For Konatsu, who likes cleanliness, the room filled with garbage and sweat stench is hell itself. Although she resists, she is violated by Gorou and tormented by guilt towards Yuuto. She runs away once, but is threatened by Gorou and summoned again the next day. While reluctantly obeying, she awakens to an unknown pleasure...