Chanyota, a personal trainer at the gym, was feared by the male members for her thorough Spartan training and unreasonable violence. Although she is beautiful, she is muscular, arrogant, and sadistic. She bullies students, makes them strip naked, and photographs them in order to satisfy her own distorted sexual desires. However, one of the students who was being sexually abused manages to record an obscene video of Chanyo and the gym's president. The students who were being abused vow revenge and start training muscular women!