When they were young, the brothers Mutta and Hibito promised each other they would become astronauts. Now, in 2025, Hibito has followed his dream to become the first Japanese on the moon, but Mutta has just been fired from his job. His brother reminds him of their childhood promise, and Mutta decides once again to aim for space.
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Hiroaki Hirata
Mutta Nanba (voice)
KENN
Hibito Nanba (voice)
Masayuki Katou
Kenji Makabe (voice)
Miyuki Sawashiro
Serika Itou / Mutta Nanba as a Boy (voice)
Masako Ikeda
Sharon Kaneko (voice)
Yuko Sanpei
Hibito Nanba as a Boy (voice)
Shô Ryûzanji
Tadashi Hoshika (voice)
Ryou Naitou
Yasushi Furuya (voice)
Shintaro Asanuma
Yamato Mizoguchi (voice)
Takanori Hoshino
Reiji Nitta (voice)
