MOVIE
Summer Days with Coo
河童のクゥと夏休み
AnimationFantasyComedyRomanceDramaFamily
A small, lone Kappa miraculously survives over 200 years into modern day Japan, when he is found by young Koichi. Coo, who is secretly adopted by Koichi's family, searches with his new human friend for unpopulated places in hopes of finding any remaining of his kind.
Top cast
Kazato TomizawaCoo (voice)
Takahiro YokokawaKouichi Uehara (voice)
Naoki TanakaYasuo Uehara (voice)
Tamaki MatsumotoHitomi Uehara (voice)
Ken'ichi NagiraCoo's Father (voice)- Nanako HirataKoichi's Classmate (voice)
Kyousuke IkedaKoichi's Classmate (voice)- Kazuki MatsuokaKoichi's Classmate (voice)
- Souta MurakamiKoichi's Classmate (voice)
- Saki YoshiharaKoichi's Classmate (voice)
- Kereo YoshitaKoichi's Classmate (voice)
Naomi NishidaYukaki Uehara (voice)
Where to watch
Netflix
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OSN+
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Amazon Prime Video
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Shahid
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Watch It
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TOD
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Disney+
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Apple TV+
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Not currently available on the supported providers in EG.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 15 Jul 2026.