Tomonaga Akiyuki and his wife Yu have been married seven years. Akiyuki is a graphic designer, and is quite happy in his work and private life. One day, he attends the wedding of his younger half-brother Ichinose Ryo. However, Ryo runs off with a young woman who appears at the wedding, leaving the bride Jumonji Azusa at the altar. Akiyuki bows his head and apologizes to Jumonji, and this is the prelude to a growing intimacy between them. Is it love, or is Jumonji after revenge? And what do Yu and Ryo think as they become aware of this relationship? Akiyuki and Yu, it seems, are headed for divorce. Further complications arise for Akiyuki and Yu when Akiyuki’s close friend Shunsuke and lawyer Reiko, advising on divorce, get involved.