Upcoming original theatrical anime film ChaO published four character trailers today introducing some of the main members of its cast, including: Stephan (voiced by Ouji Suzuka), Chao (voiced by Anna Yamada), Maibei (voiced by Kavka Shishido), and Roberta (voiced by Yuichiro Umehara). The film begins its theatrical run in Japan on August 15, 2025. ChaO Stephan Character Trailer ChaO Chao Character Trailer ChaO Maibei Character Trailer ChaO Roberta Character Trailer RELATED: ChaO Anime Movie Reveals 7 new Voice Cast Members Yasuhiro Aoki directs the film at STUDIO4℃. Hirokazu Kojima provides the character designs and serves as animation director, while Hiroshi Takiguchi serves as art director. TOEI distributes the film in Japan. The Annency Film Festival's official website describes ChaO as follows: 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? Source: Anime! Anime!
