ten years love letter

This is a story in the style of Japanese youth movies: Kosugi is an ordinary white-collar worker in Tokyo. One day, he suddenly learns the news of the death of Aoki, a high school classmate he hadn't seen in ten years.What is even more surprising is that Aoki actually left the entire inheritance to Xiaoshan?At a loss, Xiaoshan boarded the train back to his hometown, and what awaited him was a journey of youth memories...