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ChaO

Play trailer ChaO 2025 Anime Romance Play Trailer Watchlist
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From acclaimed Japanese animation production house Studio 4C comes a wild romantic comedy and true "fish out of water" story. In a future society where humans and mermaids coexist, Stephan, a regular office worker at a shipbuilding company, is suddenly proposed to by Chao -- a princess from the mermaid kingdom! With no time to make sense of what's happening, Stephan finds himself living together with Chao. As he is showered with Chao's pure and wholehearted love, Stephan gradually begins to fall for her. What will become of their unlikely romance?

Critics Reviews

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Wendy Ide Screen International Visually spectacular and energetic in style, this is a bracingly anarchic piece of storytelling that announces a distinctive new voice in Japanese anime. Jun 16, 2025 Full Review Read all reviews

Cast & Crew

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Yasuhiro Aoki

Director

Oji Suzuka

Voice

Anna Yamada

Voice

Anna Tsuchiya

Voice

Cookie

Voice

Kavka Shishido

Voice
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ChaO

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Movie Info

Synopsis From acclaimed Japanese animation production house Studio 4C comes a wild romantic comedy and true "fish out of water" story. In a future society where humans and mermaids coexist, Stephan, a regular office worker at a shipbuilding company, is suddenly proposed to by Chao -- a princess from the mermaid kingdom! With no time to make sense of what's happening, Stephan finds himself living together with Chao. As he is showered with Chao's pure and wholehearted love, Stephan gradually begins to fall for her. What will become of their unlikely romance?
Director
Yasuhiro Aoki
Producer
Eiko Tanaka
Genre
Anime, Romance
Original Language
Japanese