At his wedding pick-up ceremony, Shen Zhou encounters a last-minute, unreasonable price hike from his fiancée's family. Seeing through the scheming nature of her family, he decisively cancels the wedding. At this critical moment, he joins hands with Lin Wanqing, a bridesmaid who adheres to principles, to register their marriage. Together, they face commercial chaos and multiple traps, relying on evidence and the law to protect the rights and interests of themselves and their families. In the process of clearing away layers of fog and investigating the truth of past old cases, two sincere hearts gradually draw close. Remaining true to their original intentions, the two join hands to pioneer their careers, protect their family, and reap the wonderful love of a two-way rush toward each other.