In the prosperous age of Chang'an, demons and humans lived side by side. Bai Sheng, a thousand-year-old white cat demon, runs a teahouse in the West City and is lazy and venomous; Li Changge, a minor clerk in Dali Temple, solves the case and becomes an idiot, fearing the society and being taciturn. After meeting because of the "catnip theft case", they went from fighting each other to joining hands, solving crimes, petting cats, visiting temple fairs, and constantly spreading candies. Secretly, Si Tianjian Si Chen wants to use the "Candle Dragon Dial" to turn back time and eradicate the demon clan. The two teamed up with the fox demon, night crow and other demons to travel through the ghost city and go back ten years. Through sixty relaxing and warm daily lives, they accumulated the power to fight against fate. When the dial shattered and the dragon died, Bai Sheng exchanged eight lives for Chang'an, leaving only one life to accompany Chang Ge in seclusion. Later, he returned to the old street, opened a teahouse, and raised twin cubs. In the world of fireworks, demons and humans finally end up together by different paths - only with cats and you in the prosperous age can we call Chang'an.
Intention: Humans and monsters have different paths, but due to understanding, companionship and small kindness, they will eventually turn "difference" into "same destination".