At the architecture firm where he has been transferred to, Tomoya happens to meet his senior from his school days, Manami. She used to be Ke'ai of him, and Tomoya still can't stand her. Even while he is at work, she continues to stimulate his sexual senses and skillfully toy with him, and he is swept away by her lewd advances. The lewd training, which is called new employee training, becomes more and more daring, and Tomoya continues to indulge in Manami's body. However, one day, as the new employee training is about to come to an end...