The anime's original story features Mutta and Hibito during one summer when they were children. During the summer when Mutta and Hibito made their promise to go to space, they met a young girl who also had a wish. (Source: Anime News Network)

Genres

Cast

Mutta Nanba

Miyuki Sawashiro

Hikari

Fumiko Orikasa

Hibito Nanba

Yuuko Sanpei