Yuu develops a deep admiration for his step-cousin Hatahiko while growing up in Akita. Destiny brings them back together when Yuu moves to Tokyo for his studies. Despite some unusual events, Yuu is thrilled to reconnect with his beloved cousin. However, Hatahiko politely declines his advances, citing that he doesn't date younger guys. The narrative follows the romantic bond between a teasing office worker who enjoys asserting his power and a wealthy college student.