Ruri (Chiaki Kuriyama), who witnessed Ryo (Yuta Koseki) and Erika Tachibana (Akane Hotta) leaving the floor, overheard what they were talking about. The person Ryo wants to turn his attention to is his ex-girlfriend Erika...!? Ruri should have been dating Ryo as her romantic mentor, but for some reason she realizes that she is jealous of Erika. She goes home and tries to distract her by drinking her sake, but she is stunned by her brother Kota (Kusakawa Takuya) who sees this. From the next day, Ruri naturally avoids Ryo, and she senses that Ryo is also avoiding her. However, things take an unexpected turn!?
—TV Tokyo