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花澤香菜 as Miyu (voice) |
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浅沼晋太郎 as Daru (voice) |
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矢作紗友里 as Chika (voice) |
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平松晶子 as Miyu's Mother (voice) |
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手塚ヒロミチ as Narrator (voice) |
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下地紫野 as Elementary School Student (voice) |
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堀江瞬 as Junior High School Student (voice) |
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新海誠 as Chobi (voice) |
| Sound | 鶴岡陽太 | Sound |
| Art | 佐川遥 | Paint Coordinator |
| Art | 太田里香 | Storyboard Artist |
| Visual Effects | Chimoto Umishima | Animation Department Coordinator |
| Visual Effects | Chimoto Umishima | Character Designer |
| Art | 田中孝典 | Art Direction |
| Writing | Naruki Nagakawa | Writer |
| Art | 坂本一也 | Storyboard Artist |
| Writing | 新海誠 | Original Story |
| Directing | 坂本一也 | Director |
