Mao is concerned about her husband, Ryosuke, who has recently been worried about his lack of energy, saying, 'I'm busy.' Even though he says that, Mao still feels hurt, thinking that she might not be attractive. Ryosuke's subordinate, Murata, who visited the couple's home, seduced Mao as an opportunity to demonstrate that the couple is suffering from a lack of sex. Mao refused, but Murata, who is approaching her aggressively and crazily.