The protagonist of Ren Edition is Kangkang, and the whole book revolves around Kangkang's story. And every child has his own personality characteristics. For example, Kangkang is a multi-star and Michael is a pistachio. The story of the book is strong, and dialogues and sketches are set up by showing the study life of several protagonists. Relatively speaking, the units of the People's Education Edition are independent and not as interesting as the Ren Education Edition.