ChaO poster

ChaO

He's on the hook.

8.1(16)20251h 30m3

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.

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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

Produced in

Japan

Where to watch

Availability for United States. Provided by JustWatch through the TMDB API.

Gallery

Still from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaOStill from ChaO

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
  • C

    Chris Sawin

    4/11/2026

    8/10

    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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