Xiaoqing, a primary school student, and her unmarried mother Vida live happily in the tropical rain forest, leading a simple and happy life. One day, Vida came home drunk at night and brought back a beautiful little girl named Abu. She thought she would live a happier life, but the next day, a drastic change began. Xiaoqing found that Abu was completely disguised last night. In fact, Abu not only has a weird temper and loves to tease Xiaoqing, but also has a stomach that can swallow anything. And Xiaoqing's father, whom she has never met, seems to be coming to this tropical rain forest. The tropical rain forest full of hilarious and incredible events and characters has become different because of Abu's arrival.