The most ferocious gluttonous cub in the three realms, Tangtang, accidentally swallowed an ancient forbidden book and became the "cute master" of the fairy nursery. Qingyangzi, the leader of the mysophobia, was forced to become a nanny, the horns of Demon Lord Ye Wuyuan were turned into teething sticks, and the judicial robe of cold-faced judge Yu Hengzi was turned into a rag for wiping saliva. From real estate speculation in the Fairyland School District to the Dessert Shop in the Demonic World, from sword manicures to catastrophic disco dancing, Tangtang gnawed through the rules of the Three Realms with an iron stomach, and by the way tore apart the integrity of all the villains. However, when the teeth mark of her housebreaker quietly penetrated into the spiritual veins, and when the devil's dessert recipe concealed a world-destroying spell, this seemingly ridiculous daily parenting turned out to be the ultimate gamble of the survival of the three worlds - who said that saving the world cannot rely on rainbow farts and saliva pockets?