Life is hard enough for Sheng Wang when he transfers to a new high school and immediately falls out with his classmate Jiang Tian. But when Sheng Wang’s father and Jiang Tian’s mother decide to get married, the two boys’ lives are turned upside down. Sheng Wang and Jiang Tian must negotiate their new status as step-siblings and endure the ups and downs of their school and family experiences together.