Koharu and Minami are coworkers at the same company. However, they had built a deep bond as lovers in a lesbian relationship. When that relationship falls apart and Minami breaks up with Koharu, Koharu is overwhelmed by intense rage and despair, kidnapping Minami and imprisoning her in her own home. Using a strapon and a double-headed vibrator, Koharu's violent rampage of domination begins now!