Completed
Studio 4°C
The anime
About ChaO
In a future where humans and mermaids live together, mild-mannered shipbuilding employee Stephan is abruptly proposed to by Chao, a princess from the mermaid kingdom. Stephan soon finds himself living with the unpredictable, wholehearted Chao.
- Format
- Movie
- Status
- Completed
- Released
- August 15, 2025
- Running time
- 90 minutes
- Studio
- Studio 4°C
- Source
- original
The cast
Featured characters
Behind the characters
Voice actors
Behind the anime