The storytelling technique is very advanced, and the two lines are parallel, but it is easy to switch, and it is not tedious. This film, which lasts less than 2 hours, spans a long time. I feel that I have seen many people, many modes of getting along, many romantic or funny or sad scenes, and I feel a lot of warmth and emotional interaction. For example, a few friends who climbed the mountain together before met quietly at night to sweep the grave. My mother knew, and said with a smile, it seems that the child can't sleep tonight. When the adult female Fujii returned to school, the female teacher recited the magic of two students' student numbers; The surprise, curiosity and longing of the lovely little girls in the library when they heard the name "Fujii Tree", and so on.