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Chiikawa the Movie: The Secret of the Mermaid Island

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

July 24, 2026 (JP) • Animation, Family, Adventure, Fantasy • 99m

Overview

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.

Director

Kei Oikawa

Writer

Nagano

Top Billed

Haruka Aoki

Keywords

based on manga anime philosophical reflective complex wonder playful lighthearted intimate critical sentimental witty whimsical admiring adoring amused appreciative awestruck celebratory cheerful comforting compassionate empathetic enthusiastic euphoric excited gentle powerful sincere sympathetic urgent vibrant
Where to watch

Top Billed 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)

Saeko Oki
Saeko Oki

Mermaid (voice)

Ayaka Nanase
Ayaka Nanase

Mermaid (voice)

Nozomi Nagumi
Nozomi Nagumi

Mermaid (voice)

Chihiro Kawakami
Chihiro Kawakami

Representative of the Islanders (voice)

Misato Matsuoka
Misato Matsuoka

Miso-pickled Islander (voice)

Nina Hanamiya
Nina Hanamiya

Miso-pickled Islander (voice)

Natsuno Kinose
Natsuno Kinose

Friendly 'bird' (voice)

Rinka Ishikawa
Rinka Ishikawa

Gray Children / Islanders (voice)

Akina Houmoto
Akina Houmoto

Gray Children / Islanders (voice)

Shu Uchida
Shu Uchida

Gray Children / Islanders (voice)

Izumi Umemoto
Izumi Umemoto

Gray Children / Islanders (voice)

Nanami Kusakari
Nanami Kusakari

Gray Children / Islanders (voice)

Akane Kumada
Akane Kumada

Gray Children / Islanders (voice)

Reika Koyama
Reika Koyama

Gray Children / Islanders (voice)

Riko Sakuraya
Riko Sakuraya

Gray Children / Islanders (voice)

Yûka Suzumi
Yûka Suzumi

Gray Children / Islanders (voice)

Nina Tamaki
Nina Tamaki

Gray Children / Islanders (voice)

Reina Nagao
Reina Nagao

Gray Children / Islanders (voice)

Momo Hisaki
Momo Hisaki

Gray Children / Islanders (voice)

Yurika Moriyama
Yurika Moriyama

Gray Children / Islanders (voice)

Asaki Yuikawa
Asaki Yuikawa

Gray Children / Islanders (voice)

Moeko Yuki
Moeko Yuki

Gray Children / Islanders (voice)

Tomokazu Sugita
Tomokazu Sugita

Pochette Yoroi-san (voice)

Yoshitsugu Matsuoka
Yoshitsugu Matsuoka

Ramen no Yoroi-San (voice)

Hiroki Touchi
Hiroki Touchi

Rōdō no Yoroi-san (voice)

Crew
Kei Oikawa
Kei Oikawa

Director

Tomoko Tsuji
Tomoko Tsuji

Character Designer

Ayaka Nagai
Ayaka Nagai

Color Designer

Masaharu Okazaki
Masaharu Okazaki

Director of Photography

Masanori Tsuchiya
Masanori Tsuchiya

Sound Director

Moe Masaki
Moe Masaki

Art Direction

Yoshinori Nakano
Yoshinori Nakano

CGI Director

Nagano
Nagano

Original Story

Nagano
Nagano

Screenplay

Shugo Tokumaru
Shugo Tokumaru

Original Music Composer

Ayumu Takahashi
Ayumu Takahashi

Editor

Chikara Uemizutaru
Chikara Uemizutaru

Original Music Composer

Hiromune Kurahashi
Hiromune Kurahashi

Sound Effects

Yoko Matsuzaki
Yoko Matsuzaki

Executive Producer

Taro Imafuku
Taro Imafuku

Producer

Naoto Shoji
Naoto Shoji

Producer

Masataka Komine
Masataka Komine

Producer

Yoshihiro Furusawa
Yoshihiro Furusawa

Executive Producer

Yoichi Kawakami
Yoichi Kawakami

Executive Producer

Takumi Takatsuma
Takumi Takatsuma

Prop Designer

Masaki Hashimoto
Masaki Hashimoto

Concept Artist

Takumi Takatsuma
Takumi Takatsuma

Key Animation

Hideo Harigaya
Hideo Harigaya

Key Animation

Kanta Fukumi
Kanta Fukumi

Key Animation

Yuki Ito
Yuki Ito

Key Animation

Odashi
Odashi

Key Animation

Hiroyuki Saita
Hiroyuki Saita

Animation Director

Aoi Maekawa
Aoi Maekawa

Animation Director

Karen Nozawa
Karen Nozawa

Animation Director

Hiroaki Arai
Hiroaki Arai

Animation Director

Yusuke Soen
Yusuke Soen

Animation Director

Mayumi Nakamura
Mayumi Nakamura

Animation Director

Saori Yanaga
Saori Yanaga

Animation Director

Motoki Ikebe
Motoki Ikebe

Animation Director

Tomoko Tsuji
Tomoko Tsuji

Animation Director

Tomoko Tsuji
Tomoko Tsuji

Supervising Animation Director

Aoi Maekawa
Aoi Maekawa

Supervising Animation Director

Nagano
Nagano

Supervising Animation Director

Yuji Fujinami
Yuji Fujinami

Key Animation

Kim Seong-beom
Kim Seong-beom

Key Animation

Keita Shimizu
Keita Shimizu

Key Animation

Ori
Ori

Key Animation

Fumiyuki Uehara
Fumiyuki Uehara

Key Animation

Ryunosuke Ozawa
Ryunosuke Ozawa

Key Animation

Road Sign
Road Sign

Key Animation

Tae Inotsume
Tae Inotsume

Key Animation

Kurumi Ogawachi
Kurumi Ogawachi

Key Animation

Tomoka Tamatani
Tomoka Tamatani

Key Animation

StudioXD
StudioXD

Key Animation

Usahori
Usahori

Key Animation

Tsubura Taniguchi
Tsubura Taniguchi

Key Animation

Kenro Tokuda
Kenro Tokuda

Key Animation

Kurumi Ito
Kurumi Ito

Key Animation

Miki Komuro
Miki Komuro

Key Animation

Hina Kobayashi
Hina Kobayashi

Key Animation

Yoshinori Uetake
Yoshinori Uetake

Key Animation

Ryuken Toida
Ryuken Toida

Key Animation

Chang Yunhsin
Chang Yunhsin

Key Animation

Li Wensheng
Li Wensheng

Key Animation

Miyuki Matsumoto
Miyuki Matsumoto

Key Animation

Tetsuya Takeuchi
Tetsuya Takeuchi

Key Animation

Natsuho Iwaida
Natsuho Iwaida

Key Animation

Tsuboshi
Tsuboshi

Key Animation

Yuki Ito
Yuki Ito

Key Animation

Ami Nagata
Ami Nagata

Key Animation

Shiori Hosaka
Shiori Hosaka

Key Animation

Marina Maki
Marina Maki

Key Animation

Kaku Naitou
Kaku Naitou

Key Animation

Yani Yang
Yani Yang

Key Animation

Kamille Areopagita
Kamille Areopagita

Key Animation

Konro
Konro

Key Animation

Shinga Nakamura
Shinga Nakamura

Key Animation

Yoshiko Tsujimura
Yoshiko Tsujimura

Key Animation

Yasuo Muroi
Yasuo Muroi

Key Animation

Hiroaki Arai
Hiroaki Arai

Key Animation

Negi
Negi

Key Animation

Saya Yokota
Saya Yokota

Key Animation

Unaka Shinshu
Unaka Shinshu

Key Animation

Chihching Lai
Chihching Lai

Key Animation

Rina Fujii
Rina Fujii

Key Animation

Awoi Ohtani
Awoi Ohtani

Key Animation

Toya Oshima
Toya Oshima

Key Animation

bs_kim
bs_kim

Key Animation

Kohei Shimazaki
Kohei Shimazaki

Key Animation

Ren Onodera
Ren Onodera

Key Animation

Ko Watani
Ko Watani

Key Animation

Mayumi Nakamura
Mayumi Nakamura

Key Animation

kamosuto
kamosuto

Key Animation

Masumi Yoshida
Masumi Yoshida

Key Animation

Nami Kato
Nami Kato

Key Animation

Natsumi Sakai
Natsumi Sakai

Key Animation

Akane Tsukamoto
Akane Tsukamoto

Key Animation

Momoko Takahashi
Momoko Takahashi

Key Animation

Sayuri Sakimoto
Sayuri Sakimoto

Key Animation

Shi Zhongyu
Shi Zhongyu

Key Animation

Tatsuki Narasawa
Tatsuki Narasawa

Key Animation

Daichi Enomoto
Daichi Enomoto

Key Animation

Tenohira
Tenohira

Key Animation

Kyohei Ebata
Kyohei Ebata

Key Animation

Kosuke Kato
Kosuke Kato

Key Animation

Tarō Ikegami
Tarō Ikegami

Key Animation

Sakura Taguchi
Sakura Taguchi

Key Animation

Kohei Yano
Kohei Yano

Key Animation

Toshiyuki Sato
Toshiyuki Sato

Key Animation

Daiki Harashina
Daiki Harashina

Key Animation

Takeshi Maenami
Takeshi Maenami

Key Animation

Rai Okiyoshi
Rai Okiyoshi

Key Animation

Shunpei Umemoto
Shunpei Umemoto

Key Animation

Renta Inoue
Renta Inoue

Key Animation

Shun Murata
Shun Murata

Key Animation

Touma Koyama
Touma Koyama

Key Animation

Haruto Murata
Haruto Murata

Key Animation

Kyoko Niimura
Kyoko Niimura

Key Animation

Shuuto Hanai
Shuuto Hanai

Key Animation

Kaede Oono
Kaede Oono

Key Animation

Kaon Ootsuka
Kaon Ootsuka

Key Animation

Ako Saeda
Ako Saeda

Key Animation

Yuuka Kawanami
Yuuka Kawanami

Key Animation

Shihping Yang
Shihping Yang

Key Animation

Nana Matsuda
Nana Matsuda

Key Animation

Yorihiro Tanimoto
Yorihiro Tanimoto

Key Animation

momofuji
momofuji

Key Animation

Masashi Ito
Masashi Ito

Key Animation

Miya
Miya

Key Animation

Tadahito Kiyosawa
Tadahito Kiyosawa

Key Animation

Azusa Oura
Azusa Oura

Key Animation

Koki Ikeda
Koki Ikeda

Key Animation

Hokuto Ono
Hokuto Ono

Key Animation

Yutaka Kinutani
Yutaka Kinutani

Key Animation

humuu
humuu

Key Animation

JDGE
JDGE

Key Animation

Shimauma
Shimauma

Key Animation

Mofujiro
Mofujiro

Key Animation

Nekouya
Nekouya

Key Animation

Higashino
Higashino

Key Animation

Hayato Torii
Hayato Torii

Key Animation

Kakeru Isokawa
Kakeru Isokawa

Key Animation

Naoya Morotomi
Naoya Morotomi

Key Animation

Kana Fujishiro
Kana Fujishiro

Key Animation

Tu Yong-ce
Tu Yong-ce

Key Animation

Yuichi Takahashi
Yuichi Takahashi

Opening/Ending Animation



Reviews

No reviews available.

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Status

Released

Original Language

JA

Budget

—

Revenue

$110,462,871

This product uses the TMDB API but is not endorsed or certified by TMDB.

This product uses the TMDB API but is not endorsed or certified by TMDB.

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