

ChaO
He's on the hook.
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.
TMDB
8.1/10
16 votes
IMDb
Not rated yet
View on IMDb
- Status
- Released
- Budget
- —
- Box office
- —
- Language
- Japanese
- princess
- marriage proposal
- mermaid
- futuristic society
- anime
- interspecies romance
- love story
- coexistence
- urban fantasy
Top billed cast









Behind the camera
Where to watch
Availability for United States. Provided by JustWatch through the TMDB API.
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Videos
Release dates
IndiaIN
- TheatricalUA7 Aug 2026
United StatesUS
- PremiereJAPAN CUTS10 Jul 2025
- PremiereAnimation Is Film Festival18 Oct 2025
- TheatricalNR10 Apr 2026
- Digital / OTTNR23 Jun 2026
- PhysicalNRBlu-ray22 Sept 2026
United KingdomGB
- PremiereLondon Film Festival11 Oct 2025
- PremiereLeeds International Film Festival8 Nov 2025
- PremiereScotland Loves Anime15 Nov 2025
- PremiereFlatpack Festival9 May 2026
- Theatrical (limited)4 Dec 2026
AustraliaAU
- PremiereAdelaide Film Festival18 Oct 2025
CanadaCA
- PremiereFantasia International Film Festival27 Jul 2025
- PremiereOttawa International Animation Festival25 Sept 2025
ChileCL
- TheatricalTE23 Apr 2026
ColombiaCO
- Theatrical23 Apr 2026
CzechiaCZ
- TheatricalU11 Jun 2026
FranceFR
- PremiereAnnecy International Animation Film Festival9 Jun 2025
- TheatricalTP13 May 2026
GuatemalaGT
- Theatrical23 Apr 2026
IrelandIE
- PremiereJapanese Film Festival9 Apr 2026
ItalyIT
- Theatrical (limited)25 Jun 2026
Frequently asked questions
ChaO was released on 15 August 2025.
Audience reviews
1- C8/10
Chris Sawin
4/11/2026
ChaO delivers in that it spans a wide range of genres and makes you feel a spectrum of emotions in the span of an hour and a half. Its unusual animation style makes it more memorable, since it doesn’t look like anything else out there and will be remembered for its extraordinary, one-of-a-kind aesthetic. It also helps that it’s hilarious. https://bit.ly/MermanChaO
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