Yamaguchi operates a personal gym at home. His work was going smoothly, but he still carries the trauma of bullying from his student days. The main culprit was Miyu, a classmate who hid his belongings and treated him like a dog. He wanted revenge someday, but Miyu came to Yamaguchi's gym unexpectedly. Miyu doesn't realize that the instructor in front of her is Yamaguchi himself. Furthermore, he feels anger towards Miyu, who seems happy after getting married, but he puts aphrodisiacs in everything Miyu eats. From that day on, he decides to carry out a revenge and climax training...
