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.
About the film
Plays from YouTube when you press play; nothing loads from them until then.
Fi1m review
Out now in Canada. ChaO opened on 27 July 2025; our review follows once the critics have had their say, usually within two days of release.
Cast
Ōji Suzuka
Stephan (voice)
Anna Yamada
Chao (voice)
Kavka Shishido
Maibei (voice)
Yūichirō 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)
9cast+ 71 crew
Full cast & crew
Everyone credited
Awards
Annecy Cristal for a Feature Film, 2025
Nominated
Annecy Cristal for a Feature Film
