In the bustling country of city A, Qin Lan a driven, meticulous lawyer whose life revolves around order and precision. With her wedding day approaching, she’s all set to marry her dependable fiancé and embark on the next chapter of her perfectly planned life. But a simple clerical error at the marriage registry turns her world upside down when she accidentally weds Zhao Chen, a carefree travel blogger known for his spontaneous adventures and lack of commitment.
Caught in a legal bind, Lan and Chen are forced to remain married for three months before they can file for divorce. As they navigate their unconventional arrangement, hilarity ensues with their clashing personalities. From disastrous attempts at cohabitation to awkward family gatherings, their life together is anything but ordinary.As they spend time together, Lan begins to question her rigid lifestyle, discovering the thrill of spontaneity and the joy of living in the moment. Meanwhile, Chen finds himself drawn to Lan’s determination and intellect, challenging his own views on relationships and commitment.But when Lan's real fiancé and Chen's ex-girlfriend re-enter the picture, their accidental marriage becomes a battleground of emotions, misunderstandings, and comedic chaos.