Chanyota, a personal trainer at the gym, is feared by the male members due to her thorough Spartan coaching and unreasonable violence. Although she is beautiful, she is muscular, arrogant, and sadistic. She bullies her students, makes them strip naked, and photographs them in order to vent her own distorted sexual desires. However, one of the students who had been sexually assaulted had a sneaky relationship with Chanyo and the gym president.