Tuan Tuan, the two-and-a-half-year-old little boss of the welfare institute, accidentally meets Qi Cixi while crawling through a dog hole, and is adopted by him and brought back to the wealthy Qi family. Tuan Tuan, who comes with the golden light of a lucky star, resolves the estrangement between the Qi family father and son, and wins over a group of underlings. Qi Cixi, Qi Yan, and Qi Cinian successively degenerate into baby-pampering maniacs, daily staging comical competitions for favor. The milk-ferocious little Tuan Tuan causes trouble while coaxing her family, and a hilarious wealthy family favorite story unfolds from here.