Married to a serious, rule-abiding husband, Risa Dan's only issue is his approach to sex. He suffers from obsessive-compulsive tendencies, allowing only dull, emotionless intimacy—not even permitting kissing. Confiding in her trusted superior, Director Yoshimura, she's told, "Kissing isn't cheating, so go find someone." A few days later, as the director lectures her again on the importance of kissing, she finds herself asking, "If it's just one kiss, it's not really adultery, right...?" and moves in to press her lips to his.