What stories are there in the sailor suit of tomorrow sauce that attract the audience?

The sailor suit of tomorrow sauce is a healing film, which tells the story of a girl named Tomorrow Hutong who wants to put on her school sailor suit. The story of this animation is very warm and has many attractions for the audience. For example, the interaction between tomorrow Lane and my sister is very interesting, and the relationship between them is very close. In addition, there are many themes about growth and family in this animation, which is very touching.