Tsuma wo Dousoukai ni Ikasetara  

妻を同窓会にいかせたら

At a class reunion, Yuri, who is married but has concerns from her husband, meets Tatsuhiko, her ex-boyfriend. Although Tatsuhiko continues to drink and express romantic interest in Yumi, she worries about his health due to his reckless behavior and alcohol consumption. Despite this, she accompanies him to the bathroom when he feels unwell. However, Tatsuhiko takes advantage of this opportunity to try to seduce her. It turns out that Tatsuhiko had been pretending to be drunk in order to be alone with Yumi.