Ritsuko starts a part-time job hoping to regain the attention of a husband who no longer shows her affection, but their marriage remains cold. Her coworker Kazuya notices how depressed she is and offers sincere words of encouragement, gradually winning her trust. Meanwhile, he has been waiting for a chance to confess the feelings he has quietly nurtured for her. Two people who were never supposed to become involved finally find their emotions crossing, leading her to his home and into creampie sex.