The immensely popular character franchise Chiikawa is officially heading to the big screen for its first feature-length film.. The popular feature-length "Siren Edition" of "Chiikawa" has been made into a movie. Release date is summer 2026. [Chiikawa Movie: The Secret of Mermaid Island] The movie adaptation of 'ChiiKawa', which enjoys phenomenal popularity in Japan, has been confirmed. Scheduled for release in summer 2026, 'ChiiKawa: The Secret of the Mermaid Island' will depict the long-awaited "Siren Arc.
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The beloved Chiikawa manga by illustrator Nagano is expanding to the big screen with its inaugural anime adaptation, titled 'Eiga Chiikawa: Ningyo no Shima no Himitsu'. This feature film, translating to 'Chiikawa the Movie: The Secret of Mermaid Island', draws directly from the manga's popular "Siren Arc" or "Island Arc" episodes shared on X between March and November 2023.. Late last year, Nagao's adorable mascot manga Chiikawa revealed a big-screen adaptation coming this summer. Today, a new trailer shows more of what's to come, accompanied by a release date: July 24.
![CDJapan [Desktop] Popup Chiikawa [Calendar 2026 (TryX Ltd](https://st.cdjapan.co.jp/pictures/x/07/36/2026CL-74.jpg?v=2 "CDJapan [Desktop] Popup Chiikawa [Calendar 2026 (TryX Ltd")
![Chiikawa Gyaru x 9090 Collaboration [Preorder], Hobbies & Toys, Toys](https://media.karousell.com/media/photos/products/2026/3/12/chiikawa_x_9090_collaboration__1773289920_d3f3e270_progressive.jpg "Chiikawa Gyaru x 9090 Collaboration [Preorder], Hobbies & Toys, Toys")
![[B! ちいかわ] 『映画ちいかわ 人魚の島のひみつ』公式サイト](https://chiikawa.toho-movie.jp/assets/ogp.jpg "[B! ちいかわ] 『映画ちいかわ 人魚の島のひみつ』公式サイト")
