A housewife who has been married for 21 years and leads a mundane life. Lately, she has been feeling her heart growing colder as she ages... She wants to experience passionate sex that makes her heart race again, like when she was in her teens, just by kissing. For one day only, she wants to have an affair with a temporary boyfriend and experience intense sex until the end. Sayuri, 42 years old, resident of Nerima Ward. Children: daughter (19 years old).