Li Wan, a 13-year-old girl, lives with her grandparents because her parents divorced. Adolescent, she yearns for understanding, companionship, and love. In the Chinese education of “be obedient”, Li Wan has also completed her transition from adolescence to adulthood. In the movie, her father hopes to complete the reconciliation and communication with his daughter through a pet puppy. Li Wan named the dog “Einstein”, one day “Einstein” accidentally lost, and an interesting and thought-provoking story unfolds.