ChaO

He's on the hook.

ChaO — Plot

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.

• Release date
• August 15, 2025
• Runtime
• 90 min
• Genres
• Animation, Fantasy, Romance
• Director
• Yasuhiro Aoki

ChaO — Cast

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)