1985 e no Shuppatsu

A group of children, including 13-year-old Kazuo Tanaka, 17-year-old Kimiko, and six-year-old Tetsu, flee from a facility for homeless children shortly after the war ends. With the help of an enigmatic older man, they travel to the year 1985, four decades ahead. There, they encounter versions of themselves from the future, who have become unrecognizable.