Le Duoduo, a writer of children's literature, used to be a teacher, adolescent psychological counselor and editor of educational periodicals. Published works include: the magical collection of five-star boys, the secret collection of five-star girls, Hu Xiaoxiao in Class Three a year, Little Cherry in Class Three a year, and Hu Xiaoxiao's diary series-my parents are not my servants, I will be a rich man in the future, and I will never study for teachers and parents. All the bad guys know how powerful I am, mom. "Come on, you can't lose to yourself" "Shh! This is a magical combination magic pillow. Shh! This is a secret math magic book.