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?