
Summer Days with Coo
Directed by Keiichi Hara
Produced by SKY Perfect Well Think, Sony Music Entertainment (Japan)
A tender, whimsical story about an unlikely friendship between a boy and a mythical creature, blending wonder and melancholy as they search for belonging in a changing world.
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.
Clusters
Questions people ask
Is Summer Days with Coo easy watching? Yes. More comforting than 88% of films.
Is Summer Days with Coo sad? Yes. More sad than 75% of films.
Is Summer Days with Coo violent? Not especially. Less violent than 74% of films.
Does Summer Days with Coo end with hope? Somewhat. More hopeful than 71% of films.
Is Summer Days with Coo scary? Not especially. Less frightening than 58% of films.
These describe how the film comes across, measured across the whole film and compared with other well-known films. They are not a content list — nothing here was counted or checked scene by scene, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this film gives you that nothing else will, and whether it delivers.
Distinctly its own thing.
How unlike any other film this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble







Like Summer Days with Coo
Nearest across the full emotional profile.
Same Mood as Summer Days with Coo
Nearest on what's most distinctive about this one.
Like Summer Days with Coo, But Darker
Similar, pushed toward heavier and more intense.
Like Summer Days with Coo, But Lighter
Similar, pushed toward warmer and easier.
Like Summer Days with Coo, But Less Popular
Same territory, far fewer people have seen it.

















































