Shen Yiyi (Wang Yuwen), who has superb cooking skills, comes to Chang'an as a substitute bridegroom. She accidentally transforms into a handsome young man and meets Yang Zi'an (Wu Xize), who hides his identity under the order of the emperor. By chance, they go to the "Shangyi Pavilion" to study, and together with the arrogant swordsman Dugu Muxue (Liu Yichang), the beautiful boy Tang Jiuhua (Xie Binbin), and the warm and cute prince Li Xinyuan (Qi Peixin), they form the "Shangyi Pavilion Five" and become famous in Chang'an. How will the five people with secrets be honest with each other? Where will the love between Shen Yiyi and Yang Zi'an, who are disguised as men, go?