Chiikawa the Movie: The Secret of the Mermaid Island backdrop
Chiikawa the Movie: The Secret of the Mermaid Island poster

"Until Whenever."

Chiikawa the Movie: The Secret of the Mermaid Island (2026)

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⏱ 1h 39m Released
Animation Family Adventure Fantasy

Chiikawa and friends 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.

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Release Date
2026-07-24
Language
JA
Country
Japan
Director: Kei Oikawa
based on manga anime philosophical reflective complex wonder playful lighthearted intimate critical sentimental witty whimsical admiring adoring amused

QTORY · CyPic · TOHO

🎭 Cast

Haruka Aoki
Haruka Aoki
Chiikawa (voice)
Makoto Tanaka
Makoto Tanaka
Hachiware (voice)
Ari Ozawa
Ari Ozawa
Usagi (voice)
Yuka Iguchi
Yuka Iguchi
Momonga (voice)
Takayuki Asai
Takayuki Asai
Kurimanju (voice)
Yuma Uchida
Yuma Uchida
Rakko (voice)
Miyuri Shimabukuro
Miyuri Shimabukuro
Shisa (voice)
Momo Harumi
Momo Harumi
Furuhonya (voice)
Tsuguo Mogami
Tsuguo Mogami
Shimajiro (voice)
Minori Suzuki
Minori Suzuki
Siren (voice)
Momoka Terasawa
Momoka Terasawa
Hitoha (voice)
Sayumi Suzushiro
Sayumi Suzushiro
Futaba (voice)

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