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Minami Takayama as Yuu |
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高田由美 as Saya/Monmo |
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Rei Sakuma as Beluga |
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深雪さなえ as Nyan |
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川久保潔 as Dr. Mead |
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Tessyo Genda as Daigo Tokida |
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松岡洋子 as Mother |
| Camera | 沖野雅英 | Director of Photography |
| Sound | 村山達哉 | Music |
| Visual Effects | Keisuke Watabe | Animation Director |
| Production | Michio Yokoo | Producer |
| Art | 脇威志 | Art Direction |
| Visual Effects | 越智一裕 | Character Designer |
| Editing | Shigeru Nishiyama | Editor |
| Directing | 越智一裕 | Director |
| Writing | 越智一裕 | Writer |
