The innocent and kind-hearted Zhiqing was He Shen's favorite daughter, but she accidentally traveled to 2015 on the night of Chinese Valentine's Day. With the passage of time and space, Hedi has already become today's tourist attraction - Prince Gong's Mansion. Thanks to Shen Lingfeng's shelter, he gained insight into the fact that Zhiqing traveled through time and was determined to help her go back to the past. Shen Lingfeng's family opened a restaurant called Yuelongmen in Houhai. Zhiqing won Shen Guangming's trust with her keen taste and superb cooking talent, and even won Shen Lingfeng's love. Shen Lingfeng's good friend Zhang Haoxuan also fell in love with her at first sight. Zhang Haoxuan's father, Zhang Zhentian, is a very utilitarian archaeologist. He accidentally discovered Zhiqing's identity and tried to use her to go back to the past. A year later on Chinese Valentine's Day, the door of time opens again. Can Zhiqing return to the Qing Dynasty? Where will her relationship with Ling Feng and Haoxuan go?