Pu Rou, a bright and spirited heiress, hastily marries Sheng Kuang, the third young master of the Sheng family, whom everyone else considers aloof and difficult to approach, after an unexpected turn of events. Their marriage begins as a contractual arrangement, with each harboring their own intentions. Yet, as they live under the same roof, they gradually let down their guard. Her sincerity and radiant personality melt the emotional knots he has carried for years, while his quiet protection allows her to discover the tenderness hidden within him. Amid family intrigue and the return of someone from his past, he always stands in front of her, shielding her from every storm. What begins as marriage before love and a pretend romance gradually becomes real. In the end, their marriage certificate becomes a promise to spend the rest of their lives together.