Chiikawa the Movie: The Secret of the Mermaid Island poster
Where to stream

Chiikawa the Movie: The Secret of the Mermaid Island

7.320261h 39mMovieAnimationFamilyAdventure

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…

DirectorKei Oikawa
WriterNagano
ProducersYoko Matsuzaki·Taro Imafuku

Where to watch

Expected on OTT
around September 11, 2026

Released in cinemas on July 24, 2026. A prediction based on the typical 6–8 week theatrical-to-streaming window — not a confirmed date. Get the WhichOTT app to be notified the moment it lands.

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Cast · Directed by Kei Oikawa

HAHaruka Aoki
Haruka Aoki
Chiikawa (voice)
MTMakoto Tanaka
Makoto Tanaka
Hachiware (voice)
AOAri Ozawa
Ari Ozawa
Usagi (voice)
YIYuka Iguchi
Yuka Iguchi
Momonga (voice)
TATakayuki Asai
Takayuki Asai
Kurimanju (voice)
YUYuma Uchida
Yuma Uchida
Rakko (voice)
MSMiyuri Shimabukuro
Miyuri Shimabukuro
Shisa (voice)
MHMomo Harumi
Momo Harumi
Furuhonya (voice)
TMTsuguo Mogami
Tsuguo Mogami
Shimajiro (voice)
MSMinori Suzuki
Minori Suzuki
Siren (voice)
MTMomoka Terasawa
Momoka Terasawa
Hitoha (voice)
SSSayumi Suzushiro
Sayumi Suzushiro
Futaba (voice)

More from Kei Oikawa · Director

Da Capo
Da Capo
2003 · 6.2
My Teen Romantic Comedy SNAFU
My Teen Romantic Comedy SNAFU
2013 · 8.2
Umamusume: Pretty Derby
Umamusume: Pretty Derby
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Blessing of the Campanella
Blessing of the Campanella
2010 · 7.0
Listen to Me, Girls. I'm Your Father!
Listen to Me, Girls. I'm Your Father!
2012 · 6.1
Zenonzard: The Animation
Zenonzard: The Animation
2020 · 10.0
Hinamatsuri
Hinamatsuri
2018 · 7.9
Outbreak Company
Outbreak Company
2013 · 6.6
This Art Club Has a Problem!
This Art Club Has a Problem!
2016 · 6.2
SHINEPOST
SHINEPOST
2022 · 8.7
See all fromKei Oikawa

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Chiikawa the Movie: The Secret of the Mermaid Island — streaming FAQ

Which OTT platform streams Chiikawa the Movie: The Secret of the Mermaid Island?

Chiikawa the Movie: The Secret of the Mermaid Island isn't streaming anywhere in Canada yet.

Is Chiikawa the Movie: The Secret of the Mermaid Island on Netflix?

No, Chiikawa the Movie: The Secret of the Mermaid Island is not on Netflix in Canada as of September 2026.

Is Chiikawa the Movie: The Secret of the Mermaid Island on Amazon Prime Video?

No, Chiikawa the Movie: The Secret of the Mermaid Island isn't on Amazon Prime Video in Canada right now.

Where can I watch Chiikawa the Movie: The Secret of the Mermaid Island for free?

Chiikawa the Movie: The Secret of the Mermaid Island isn't streaming in Canada yet, so there's no way to watch it free at the moment.

What is the OTT release date for Chiikawa the Movie: The Secret of the Mermaid Island?

Chiikawa the Movie: The Secret of the Mermaid Island hasn't started streaming in Canada yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around September 11, 2026. This is a prediction, not a confirmed date.