When the contract expired, I started to truly love the man I had married by mistake

Ye Feng, the heiress of the Ye family, is forced by her parents into an arranged marriage from her childhood. She signs a three-month marriage contract with Fu Yushen, a husband who is to marry into her family, while secretly remaining devoted to her boyfriend, Song Yihang. To her surprise, this seemingly ordinary contract husband suddenly appears at the Ye Corporation to take over a core smart real estate project, making Feng both wary and scornful of him. As they work together, Feng gradually discovers Yushen's mysterious nature and remarkable abilities. At the same time, her boyfriend, Yihang, and her cousin, Ye Lin, secretly harbor their own ambitions, colluding with a competitor to steal the project's secrets. When the betrayal comes to light, Yushen steps up to protect her, revealing his true identity as the CEO of a top technology company who has been quietly watching over Feng and the project all along. In the end, their scheme is thwarted and the traitors are brought to justice. Feng finally sees who truly cares for her, tears up the contract, and transforms her relationship with Yushen from a contractual obligation into a true partnership of soulmates, ready to embrace a happy future together.