Chiikawa the Movie: The Secret of the Mermaid Island

Fans of adorable chaos and gentle thrills can look forward to the upcoming animation family adventure fantasy film titled Chiikawa the Movie: The Secret of the Mermaid Island. Scheduled to arrive in theaters on Friday, July 24, 2026, this highly anticipated project is officially listed as released on the big screen. Viewers can experience the cinematic journey in the Japanese language, featuring a total runtime of 1h 39m (99 minutes) to thoroughly enjoy the whimsical storytelling and vibrant visuals on Cinema.

The official Chiikawa the Movie: The Secret of the Mermaid Island synopsis follows Chiikawa and friends as they set off on a whimsical summer adventure to a mysterious island said to hide a long-lost mermaid secret. What starts as a fun getaway quickly turns into a heartwarming journey filled with surprises, gentle thrills, and adorable chaos. With sparkling seas, strange legends, and unforgettable encounters, the trio learns about courage, friendship, and the magic hidden in small moments, all anchored by the official tagline Until whenever...

Bringing this expansive world to life requires a talented team behind the scenes under the direction of Kei Oikawa. The narrative is shaped by the writing of Nagano, while production duties are expertly handled by producers Yoko Matsuzaki, Taro Imafuku, Naoto Shoji. The sensory experience of the film is further elevated by the musical compositions of Shugo Tokumaru, Chikara Uemizutaru, alongside the striking visuals captured by cinematographer Masaharu Okazaki.

The voice cast brings the beloved characters to life with exceptional talent, featuring Haruka Aoki as Chiikawa (voice), Makoto Tanaka as Hachiware (voice), and Ari Ozawa as Usagi (voice) in the central roles. They are joined by Yuka Iguchi as Momonga (voice), Takayuki Asai as Kurimanju (voice), Yuma Uchida as Rakko (voice), Miyuri Shimabukuro as Shisa (voice), Momo Harumi as Furuhonya (voice), Tsuguo Mogami as Shimajiro (voice), Minori Suzuki as Siren (voice), Momoka Terasawa as Hitoha (voice), and Sayumi Suzushiro as Futaba (voice).

Produced in Japan, the feature benefits from the collaborative efforts of major production companies including QTORY, CyPic, TOHO. The project has already captured global attention, reflected by its impressive box office revenue reaching $110,462,871 and regional theatrical milestones such as Indonesia Theatrical on 2026-08-28 and Indonesia Limited on 2026-09-05. Carrying the IMDb ID tt39026173, the film holds a solid user rating: 7.1/10 from 9 votes and a strong popularity score of 9.6974.

Associated closely with themes based on manga and broader anime traditions, the film appeals to viewers looking for philosophical, reflective, complex, wonder, playful, lighthearted, intimate, critical, sentimental, witty, whimsical, admiring, adoring tones. Audiences stepping into the theater for Chiikawa the Movie: The Secret of the Mermaid Island can expect a charming blend of lighthearted fun and emotional depth as the characters navigate their strange island legends and memorable encounters.