On the wedding day, the video of the elder sister’s infidelity was exposed, forcing the younger sister to marry the Wall Street heir who was originally supposed to be her "brother-in-law". At first, the male lead thought the female lead was also part of the family’s scam, so he treated her coldly, on guard and with constant tests; the female lead, on the other hand, believed that the male lead married her only to humiliate her and take revenge on her family. Yet every external blow — media siege, the elder sister’s scheming, family pressure, commercial frame-up, pregnancy misunderstanding, the return of his ex, the side plot of a domestic violence victim, and the equity stake crisis — forced them to confront these challenges together. The two evolved from an "awkward married couple" to a "contractual alliance", from "mutual misunderstanding" to "standing side by side to break the deadlock", and finally confirmed their true love while protecting each other.
