Yu Zheng mistakenly believes she is pregnant and reaches a fake marriage agreement with wealthy businessman Sheng Jingting. As they spend time together, feelings gradually develop between them, but misunderstandings repeatedly lead to conflicts. Yu Zheng's family makes life difficult for her in every possible way, while her younger sister, Yu Xuewei, schemes relentlessly to marry her into a wealthy family. Sheng Jingting discovers that Yu Zheng is not actually pregnant but chooses to keep the truth hidden. Amid a web of truth and deception, the two must deal with family conspiracies while confronting their true feelings.