Tatsumi, a struggling host, is caught off guard by the sudden tragedy of his mother's death during her honeymoon with her new husband, who happens to be the former oyabun of a yakuza gang. Despite his reluctance to claim his inheritance, Tatsumi is forced into the family's business when the new gang leader, his step-brother Yoshimune, appears. Tatsumi soon finds himself living with Yoshimune, who develops a persistent interest in him. What follows is a story of two non-blood related brothers engaging in both defensive and offensive love tactics.
