When his twin brother passed away unexpectedly, the top strong man Jiang Xiaobai was entrusted by his mother to take over his brother's identity and protect his sister-in-law Xia Wanqiu and niece Guoguo. While cleaning up the mess left by his brother, he continued to defeat evil people and created ambiguities in their relationship, and gradually explored the truth behind his brother's death. As they get along, a shocking secret comes to light: Guoguo is actually Jiang Xiaobai's daughter, and her brother was born infertile. In the end, Jiang Xiaobai uncovered the conspiracy, got rid of the disguise, and stayed with his beloved hand in hand.
