Poor student Wen Qing spends a night with Li Hanci, the richest man. Grandmother Li approves. Li Hanci rescues her from her father, leading to a contract marriage. Misunderstandings arise due to her father's spending. Li Hanci protects pregnant Wen Qing, resolving misunderstandings. Wen Qing's true identity is revealed: heiress of the Liu family. Conflicts resolved, they hold a lavish wedding.