Su Xiaoxiao and An Jing were accidentally in danger in Baiyun Cave in the back mountain of Qingcheng, a Taoist holy land. By chance, they came into contact with the Taoist symbols left behind by Baiyun Taoist Priest Feixian, and traveled to the prosperous age of the Tang Dynasty. When they were separated, one relied on his family's cooking skills to eat and drink in the mansion of a wealthy family; the other relied on a little bit of medical knowledge he heard from his mother and father, and made friends with the boss in the world. After the encounter, watch how the two friends let the two incompatible forces live together peacefully. Traveling through time alone is too lonely, but two people working together to play with ancient times is the only way to travel back and forth.