Chiikawa’s First Movie “The Secret of the Mermaid Island” Coming to Korea in September 2026
The beloved character franchise Chiikawa is finally making its big-screen debut in South Korea.
The first-ever theatrical film Chiikawa the Movie: The Secret of the Mermaid Island has been confirmed for a September 2026 release in South Korea, bringing Chiikawa, Hachiware, and Usagi’s new adventure to Korean cinemas.
Chiikawa Makes Its First Movie Appearance
Based on the popular manga and character series created by Japanese illustrator Nagano, Chiikawa the Movie: The Secret of the Mermaid Island marks the franchise’s first theatrical film adaptation.
The movie follows Chiikawa and his friends as they embark on a mysterious mission after being attracted by the promise of a huge reward. The story is based on the popular “Island Arc” (also known as the “Siren Arc”) from the original manga series.
Korean Release Confirmed for September
The Korean release of the film has officially been confirmed for September 2026.
The film will be imported by Daewon Media and distributed by CJ ENM, allowing Korean fans to experience Chiikawa’s first cinematic adventure on the big screen.
Along with the announcement, a Korean teaser poster was revealed featuring Chiikawa, Hachiware, and Usagi traveling together by boat, building excitement for their upcoming adventure.
About the Story
In the film, Chiikawa and his friends receive an offer that promises a reward 100 times greater than usual, leading them to travel to a mysterious island.
What appears to be a relaxing trip soon turns into an unexpected adventure filled with strange events and a hidden mystery waiting beneath the island’s peaceful atmosphere.
Production Team Behind the Film
The movie is directed by Kei Oikawa, known for his work on titles including Uma Musume Pretty Derby.
Chiikawa creator Nagano personally participated in the film’s script and supervision, helping preserve the original charm and unique atmosphere of the series. Animation production is handled by CygamesPictures, the studio behind works such as Uma Musume Pretty Derby: Beginning of a New Era.
Chiikawa’s Growing Global Popularity
Since its launch on X (formerly Twitter) in 2020, Chiikawa has grown into one of Japan’s most popular character franchises.
The series has attracted fans worldwide with its combination of adorable character designs, heartwarming moments, and unexpectedly emotional storytelling. Its merchandise collaborations and pop-up events have also gained strong popularity internationally.
Final Thoughts
Chiikawa the Movie: The Secret of the Mermaid Island will arrive in South Korean theaters in September 2026, giving Korean fans the chance to experience Chiikawa’s first-ever movie adventure.
With its beloved characters, original story, and involvement from creator Nagano, the film is expected to become another major milestone for the globally popular Chiikawa franchise.