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Former swimming club director Hatanaka and his student Makoto got to know each other through club activities at school. Makoto, who worshiped Hatanaka as a leader even though Hatanaka was dismissed from disciplinary action six months ago, rushed to Hatanaka's house and asked for guidance. However, Hatanaka's guidance, which had led a rough life, went in a distorted direction ... Hatanaka repeats an obscene act called training in front of a strong and well-trained true body, but Shin is willing to accept such an action and blooms the talent of masochists.