Storyline
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.
Key Information
Watch Trailer
Cast & Crew
Ouji Suzuka
Stephan (voice)
Anna Yamada
Chao (voice)
Kavka Shishido
Maibei (voice)
Yuuichirou Umehara
Roberta (voice)
Kenta Miyake
King Neptunus (voice)
Shunsei Ōta
Juno (voice)
Anna Tsuchiya
Editor-in-Chief (voice)
Kunihiro Kawashima
Ambassador Omede / Photographer / Shop Owner (voice)
Ryota Yamasato
President Shi (voice)
Frequently Asked Questions
ChaO was released on August 15, 2025.
The runtime of ChaO is 1h 30m.
ChaO is a Animation, Fantasy, Romance movie.
ChaO has a rating of 8.0 out of 10 on TMDB.
ChaO is available to watch. Check streaming platforms and theaters near you.
ChaO was directed by Yasuhiro Aoki.
The main cast of ChaO includes Ouji Suzuka, Anna Yamada, Kavka Shishido.
ChaO is originally in Japanese.