On the shelf
Summer Days with Coo
2007Age guide: 12+
Where to watch
- United StatesKanopy · Hoopla
- CanadaHoopla
- JapanHulu · U-NEXT · FOD
3 more countries
- South KoreaNetflix · wavve · Watcha
- GermanyRent or buy
- AustriaRent or buy
Checked 11 Nov 2026 · Data: JustWatch
See it on the shelfA small, lone Kappa miraculously survives over 200 years into modern day Japan, when he is found by young Koichi.…
★ 7.8/10 · 149 TMDB audience ratings
Starring
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)
Audience reviews from TMDB · may contain spoilers
Andres Gomez: Nice animation movie about the friendship of a kid and a mithological being from Japanese culture. Deep, with some insight about the meaning… Read full review