Shen Zhiyi and Zhou Yanchuan have been in love for years and are finally preparing to get married. However, her best friend, Liu Yanyan, aggressively inserts herself into every aspect of their lives. From dating expenses and wedding home decorations to everyday arguments, she interferes in everything, deliberately stirring up conflict and draining Zhou Yanchuan's money. On their wedding day, she even blocks the wedding car, attempting to break them apart. Zhou Yanchuan's repeated compromises only encourage her to go further. Caught between the man she loves and her longtime best friend, Shen Zhiyi struggles to make a choice. But when she finally sees her best friend's selfish true nature, she breaks free from her control and fights to protect her love and her own life.