Orange: Mirai

The story of Orange: Mirai revolves around Hiroto Suwa, who reunites with his high school friends Naho, Takako, Azusa, and Saku at Mt. Koubou to view the cherry blossoms. Their reminiscence about deceased classmate Kakeru Naruse prompts them to visit his grandmother, who shares the circumstances surrounding his death. Feeling regretful, they decide to write letters to their past selves, and 16-year-old Suwa receives a letter from his future self that allows him to alter the course of events.