By a twist of fate, Lin Doudou is adopted by the wealthy Lin family, the richest family around. She has the special ability to understand and command animals. After arriving at the Lin household, Doudou uses this ability to resolve one crisis after another and help her family overcome countless difficulties, turning the once-unfortunate Lin family into a lively and prosperous household. She becomes the family's cherished little lucky star. Surrounded by love, Doudou heals the wounds of her past, protects her family, and faces the trials of destiny that await her.