ChaO (2025)
ChaO (2025)
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.

User rating:


Cast

Ouji Suzuka Ouji Suzuka As: Stephan (voice)
Anna Yamada Anna Yamada As: Chao (voice)
Kavka Shishido Kavka Shishido As: Maibei (voice)
Yuuichirou Umehara Yuuichirou Umehara As: Roberta (voice)
Kenta Miyake Kenta Miyake As: King Neptunus (voice)
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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.


Tagline:
Certification: ALL

Details

Genres: Animation, Fantasy, Romance

Language: 日本語

Release Date: 15 August 2025

Country: JP

Runtime: 90m

Company Credits

Company: STUDIO4℃

External Links

Cast

Ouji Suzuka

Ouji Suzuka

Stephan (voice)

Anna Yamada

Anna Yamada

Chao (voice)

Kavka Shishido

Kavka Shishido

Maibei (voice)

Yuuichirou Umehara

Yuuichirou Umehara

Roberta (voice)

Kenta Miyake

Kenta Miyake

King Neptunus (voice)

Shunsei Ōta

Shunsei Ōta

Juno (voice)

Anna Tsuchiya

Anna Tsuchiya

Editor-in-Chief (voice)

Cookie!

Cookie!

Ambassador Omede / Photographer / Shop Owner (voice)

Ryota Yamasato

Ryota Yamasato

President Shi (voice)

Directed By

Writing Credits

Saku Konohana

Saku Konohana

Screenplay

Production Crew

Eiko Tanaka

Eiko Tanaka

Producer

Edited By

Not currently known.

Costume and Makeup

Not currently known.

Sound

Takatsugu Muramatsu

Takatsugu Muramatsu

Original Music Composer

Koji Kasamatsu

Koji Kasamatsu

Sound Director

Kumi Koda

Kumi Koda

Theme Song Performance

Visual Effects

Hirokazu Kojima

Hirokazu Kojima

Character Designer

Hirokazu Kojima

Hirokazu Kojima

Supervising Animation Director

Yuuko Sera

Yuuko Sera

Animation Director

Kanchi Suzuki

Kanchi Suzuki

Animation Director

Masahito Onoda

Masahito Onoda

Animation Director

Hidetsugu Ito

Hidetsugu Ito

Animation Director

Shougo Furuya

Shougo Furuya

Animation Director

Kanchi Suzuki

Kanchi Suzuki

Key Animation

Ken Arto

Ken Arto

Key Animation

Yuko Matsui

Yuko Matsui

Key Animation

Yasuyuki Shimizu

Yasuyuki Shimizu

Key Animation

Eri Taguchi

Eri Taguchi

Key Animation

Saori Koike

Saori Koike

Key Animation

Keiichi Kondo

Keiichi Kondo

Key Animation

Tetsuro Moronuki

Tetsuro Moronuki

Key Animation

Masayuki Kato

Masayuki Kato

Key Animation

Takahiro Tanaka

Takahiro Tanaka

Key Animation

Tomoyuki Niho

Tomoyuki Niho

Key Animation

Yuki Nishimura

Yuki Nishimura

Key Animation

Ayumi Nagayama

Ayumi Nagayama

Key Animation

Masahito Onoda

Masahito Onoda

Key Animation

Shintaro Doge

Shintaro Doge

Key Animation

Masafumi Yokota

Masafumi Yokota

Key Animation

Hiromatsu Shu

Hiromatsu Shu

Key Animation

Chengxi Huang

Chengxi Huang

Key Animation

Natsumi Kuroiwa

Natsumi Kuroiwa

Key Animation

Sumire Yamasawa

Sumire Yamasawa

Key Animation

Iori Hisatake

Iori Hisatake

Key Animation

Sanae Shimada

Sanae Shimada

Key Animation

Miho Nagisa

Miho Nagisa

Key Animation

Takeo Shutou

Takeo Shutou

Key Animation

Yuuko Sera

Yuuko Sera

Key Animation

Mehdi Aouichaoui

Mehdi Aouichaoui

Key Animation

Chavdar Yordanov

Chavdar Yordanov

Key Animation

Benjamin Faure

Benjamin Faure

Key Animation

Oleg Kositsyn

Oleg Kositsyn

Key Animation

Ezequiel Torres

Ezequiel Torres

Key Animation

cody

cody

Key Animation

Jura

Jura

Key Animation

Uno

Uno

Key Animation

Hero

Hero

Key Animation

KURO

KURO

Key Animation

Hidetsugu Ito

Hidetsugu Ito

Key Animation

Tatsuya Tomaru

Tatsuya Tomaru

Key Animation

Hisashi Eguchi

Hisashi Eguchi

Key Animation

Hirokazu Kojima

Hirokazu Kojima

Key Animation

Shougo Furuya

Shougo Furuya

Key Animation

Sunao Chikaoka

Sunao Chikaoka

Key Animation

Chie Morita

Chie Morita

Key Animation

Atsushi Tamura

Atsushi Tamura

Key Animation

Weilin Zhang

Weilin Zhang

Key Animation

Naoyuki Asano

Naoyuki Asano

Key Animation

Atsushi Saito

Atsushi Saito

Key Animation

Haruo Okuno

Haruo Okuno

Key Animation

Hiroko Yaguchi

Hiroko Yaguchi

Key Animation

Takaaki Hirayama

Takaaki Hirayama

Key Animation

Youko Kikuchi

Youko Kikuchi

Key Animation

Yukari Kaku

Yukari Kaku

Key Animation

Tomoe Kikuchi

Tomoe Kikuchi

Key Animation

Miku Mitsuoka

Miku Mitsuoka

Key Animation

Ayumi Nagaki

Ayumi Nagaki

Key Animation

Takuma Shinohara

Takuma Shinohara

Key Animation

Aose Sakaguchi

Aose Sakaguchi

Key Animation

Yui Aoki

Yui Aoki

Key Animation

Sanae Yamamoto

Sanae Yamamoto

Key Animation

Misaki Nishino

Misaki Nishino

Key Animation

Kanako Takeuchi

Kanako Takeuchi

Key Animation

Rina Nagai

Rina Nagai

Key Animation

Camera

Not currently known.

Lighting

Not currently known.

Art Department

Hiroshi Takiguchi

Hiroshi Takiguchi

Art Direction

Yasuhiro Aoki

Yasuhiro Aoki

Storyboard Artist

Shougo Furuya

Shougo Furuya

Storyboard Artist

Other Crew

Not currently known.

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