Chan Yota, a personal trainer at the gym, was a figure feared by male members due to her thorough spartan training and unreasonable violence. Although she is beautiful, she bullied her students and made them take off their clothes and film them in order to satisfy her own distorted sexual desires. However, one of the students who was being sexually abused succeeded in filming a lewd video of Chan Yota and the gym's president. The students who were being abused swore revenge and began training the muscle woman!