Jiang Yusang discovered that she was the fake daughter who had been switched at birth for 26 years. Her parents favored the real daughter, so she decisively changed her household registration. To gather the down payment, she vied for a legal order from Sherain Group, only to encounter her ex-boyfriend Song Siyan, who had broken up with her abruptly five years ago. During their interactions, she sensed that he was plotting to get back together, and it turned out that their breakup back then was a misunderstanding. Eventually, the two cleared up their misunderstandings.
