Su Wanqing (Su Qi) defrauded a bully of his money. When he was being chased, he found Xie Heng (A Heng) who was injured and dying. He wanted to throw it away, but A Heng kept him by saying "I can help you settle accounts and prevent disasters for you." The two began to live together as "brothers", causing A Heng to fall into a "jealous" self-pulling, mistakenly thinking that he was a broken sleeve. Su Qi investigates the unjust case of the family, and clues point to the palace. A-Heng secretly helps, making Su Wanqing doubt his identity; the real culprit of the Su family's unjust case gradually emerges, and it turns out to be related to A-Heng's family~
