France / Jun 09, 2025 / Annecy International Animation Film Festival
He's on the hook.
1h 30min
Overall average
5.0/10
Trailer
Videos
Plot
In a futuristic world where humans and mermaids coexist, the life of mild-mannered office worker Stephan is upended when he is suddenly proposed to by Chao — a princess from the mermaid kingdom. With no time to make sense of what's happening, Stephan soon finds himself living with the unpredictable, wholehearted Chao, and her sincere love begins to break down his emotional barriers.
Main cast
Full cast
| Actor | Role |
|---|---|
| Kunihiro Kawashima | Ambassador Omede / Photographer / Shop Owner (voice) |
| Ryota Yamasato | President Shi (voice) |
Genres
AnimationFantasyRomance
Technical details
| Detail | Value |
|---|---|
| Original title | ChaO |
| Original language | 日本語 (JA) |
| Spoken languages | 日本語 |
| Production countries | Japan |
| Status | Released |
| Production companies | STUDIO4℃ |
| Official site | gkids.com |
| Release date | 15 agosto 2025 |
| Production | Eiko Tanaka |
| Writer | Saku Konohana |
| Assistant directors | Yasuhiro Aoki |
| Production design | Hiroshi Takiguchi, Yasuhiro Aoki, Shougo Furuya |
| Art direction | Hiroshi Takiguchi, Yasuhiro Aoki, Shougo Furuya |
| Set decoration | Hiroshi Takiguchi, Yasuhiro Aoki, Shougo Furuya |
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Release dates
Premiere
United States / Jul 10, 2025 / JAPAN CUTS
Canada / Jul 27, 2025 / Fantasia International Film Festival
Poland / Sep 28, 2025 / 16 / International Film Festival TAURON Young Horizons
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United Kingdom / Oct 11, 2025 / London Film Festival
Thailand / Oct 16, 2025 / Dex Films Fest 2025
Australia / Oct 18, 2025 / Adelaide Film Festival
South Korea / Oct 24, 2025 / ALL / Bucheon International Animation Festival
New Zealand / Mar 21, 2026 / PG / Wellington Animation Film Festival
Ireland / Apr 09, 2026 / Japanese Film Festival
Limited release
Puerto Rico / Apr 09, 2026
Theatrical release
Japan / Aug 15, 2025
Taiwan / Aug 22, 2025 / 6+
Thailand / Dec 25, 2025
France / Apr 08, 2026
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United States / Apr 10, 2026
Chile / Apr 23, 2026 / TE
Colombia / Apr 23, 2026
Guatemala / Apr 23, 2026
Peru / Apr 23, 2026
Digital
Taiwan / Dec 04, 2025 / 6+ / CATCHPLAY+
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