As Han Zheng prepares to enter married life, he encounters a difficult situation during the wedding preparations: his fiancée, Fang Ning, takes his salary card and secretly runs up charges on his credit card to financially support her younger brother and her own family. Faced with concealment and demands disguised as family obligations, Han Zheng refuses to argue endlessly. Instead, he calmly checks the accounts and clarifies financial responsibilities. After a series of conflicts and disagreements, Fang Ning gradually comes to her senses and recognizes the constraints imposed by her family upbringing. The two ultimately make the rational decision to end their engagement. Everyone learns to establish boundaries in relationships and understand that neither family affection nor romantic love should come at the expense of another person. In the end, they all achieve personal growth.