Her elder sister flees the marriage, and Zhiling is forced to take her place in an alliance with the Xiao family. On the eve of the engagement, after getting drunk, she spends one night with the fiancé's elder brother—the obsessive doctor Gu Yanchuan—by a twist of fate. The two are forced to live together, and as they spend time together every day, affection gradually grows between them, and they heal the wounds deep in each other's hearts. But Gu Yanchuan's biological father uses Zhiling as a bargaining chip, pressuring him to take over the family medical industry. On one side is heavy family power and influence, on the other is the love of his life—what choice will Gu Yanchuan make in the end? Can the two break free from the chains of the wealthy clan?