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福本莉子 as Hana (voice) |
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高橋伸也 as Kairyu (voice) |
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Kaede Hondo as Hana (5 Years Old) (voice) |
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藤原夏海 as Rio (voice) |
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Rina Satō as Rio's Mother (voice) |
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平川大輔 as Rio's Father (voice) |
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Sumi Shimamoto as Hana's Grandmother (voice) |
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中博史 as Postmaster (voice) |
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熊谷海麗 as Hogator (voice) |
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栗坂南美 as Wanpachi (voice) |
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伊南羽桜 as Hitomoshi (voice) |
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杉崎亮 as Kairiky (voice) |
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suis as Post-Office Clerk / Announcement (voice) |
| Directing | 木村拓 | Director |
| Art | 木村拓 | Storyboard Artist |
| Writing | 七健太郎 | Screenplay |
| Visual Effects | あおきまほ | Character Designer |
| Visual Effects | あおきまほ | Animation Director |
| Sound | Evan Call | Original Music Composer |
| Sound | Evan Call | Theme Song Performance |
| Sound | suis | Theme Song Performance |
| Writing | 七健太郎 | Series Composition |
| Visual Effects | 澤真平 | Animation Director |
| Visual Effects | 内田悠斗 | Key Animation |
| Crew | 土海明日香 | Other |
| Art | 渡邉丞 | Other |
| Art | 丸形美和 | Other |
