# Chiikawa the Movie: The Secret of the Mermaid Island (2026) — Celluloid fact sheet

Source: https://celluloidscore.com/movies/chiikawa-the-movie-the-secret-of-the-mermaid-island-2026/
Updated: 2026-10-11

| Field | Value |
|-------|-------|
| Celluloid Score | Composite score pending |
| Editorial Rating | Pending |
| Audience Snapshot | Pending |
| Letterboxd | Pending |
| IMDb | Pending |
| Director | Kei Oikawa |
| Genres | Animation, Family, Adventure, Fantasy |
| Runtime | 99 min |
| Age rating | 13+ (Indonesia) · PG (Singapore) · PG (Philippines) · ALL (South Korea) · G (Japan) |
| Also known as | 映画ちいかわ 人魚の島のひみつ (Japanese); 극장판 치이카와: 인어 섬의 비밀 (Korean); 超剧场版吉伊卡哇：人鱼之岛的秘密 (Chinese (China)); 劇場版 吉伊卡哇 人魚島的秘密 (Chinese (Taiwan)); จิคาวะ เดอะมูฟวี่: ความลับของเกาะนางเงือก (Thai); CHIIKAWA: BÍ MẬT ĐẢO NGƯỜI CÁ (Vietnamese) |

## Quick answer

Chiikawa the Movie: The Secret of the Mermaid Island (2026) is released, but the Celluloid composite score is pending. See the title page for available editorial coverage. Directed by Kei Oikawa.

## Celluloid verdict

Celluloid's editorial review of Chiikawa the Movie: The Secret of the Mermaid Island is still pending, so no recommendation or score is published yet. Release facts, cast, age ratings and where to watch are listed below.

## Synopsis

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.

## Cast

Haruka Aoki, Makoto Tanaka, Ari Ozawa, Yuka Iguchi, Takayuki Asai, Yuma Uchida, Miyuri Shimabukuro, Momo Harumi, Tsuguo Mogami, Minori Suzuki

## Common questions

**Is Chiikawa the Movie: The Secret of the Mermaid Island worth watching?**
Chiikawa the Movie: The Secret of the Mermaid Island (2026) is released, but the Celluloid composite score is pending. Celluloid's editorial review of Chiikawa the Movie: The Secret of the Mermaid Island is still pending, so no recommendation or score is published yet. Release facts, cast, age ratings and where to watch are listed below.

**What is Chiikawa the Movie: The Secret of the Mermaid Island about?**
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.

**Who directed Chiikawa the Movie: The Secret of the Mermaid Island?**
Chiikawa the Movie: The Secret of the Mermaid Island (2026) was directed by Kei Oikawa.

**Where can I watch Chiikawa the Movie: The Secret of the Mermaid Island?**
Streaming availability varies by region — see the Chiikawa the Movie: The Secret of the Mermaid Island page for current options.

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Reviewed and scored by Celluloid · Editor: Kaiser Khan (https://celluloidscore.com/author/kaiser-khan/)

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