Chiikawa Movie Secret of Mermaid Island New Trailer Cast

Chiikawa the Movie: The Secret of Mermaid Island is an upcoming Japanese animated feature film directed by Kei Oikawa and produced by Cygames Pictures. It represents the first theatrical expansion of the Chiikawa franchise, which originated as a manga series created by Nagano in 2020. The film adapts the series' beloved characters—Chiikawa, Hachiware, and Usagi—into a feature-length adventure centered on the discovery of a mysterious island. This project provides the franchise's existing global fanbase with a larger-scale cinematic narrative. According to TheMovieBlog's June 2026 coverage, the film's new trailer debuted alongside the announcement of new cast members joining the production.

Key Facts

Chiikawa the Movie: The Secret of Mermaid Island is an upcoming feature film adaptation of the Chiikawa franchise, directed by Kei Oikawa and produced by Cygames Pictures.

What Is Chiikawa the Movie: The Secret of Mermaid Island?

Chiikawa the Movie: The Secret of Mermaid Island is the first feature-length film adaptation of the Chiikawa franchise created by Nagano. Directed by Kei Oikawa and animated by Cygames Pictures, the film expands the universe with a new adventure involving a mysterious island. The debut trailer features the franchise's core characters and introduces newly revealed cast members joining the production.

The film is the first theatrical adaptation of the Chiikawa franchise, bringing the characters to cinemas for a new island adventure directed by Kei Oikawa at Cygames Pictures.

Who Joins the Cast of Chiikawa the Movie?

The cast of Chiikawa the Movie: The Secret of Mermaid Island adds several new voice actors to the franchise alongside the returning main trio of Chiikawa, Hachiware, and Usagi. TheMovieBlog's June 2026 report on the new trailer specifically identifies the new characters and their voice performers introduced in the footage. The report explicitly highlights the involvement of director Kei Oikawa and the production team at Cygames Pictures in developing these new roles.

"Who joins the cast of Chiikawa the Movie The Secret of Mermaid Island? Watch the new movie trailer and see the director Kei Oikawa with Cygames Pictures."

— TheMovieBlog, June 2026

The new cast members for Chiikawa the Movie: The Secret of Mermaid Island were officially revealed in the June 2026 trailer, as exclusively reported by TheMovieBlog.

Who Is the Chiikawa Movie For?

The Chiikawa movie is designed primarily for the established global fanbase of the Nagano manga and anime franchise. The film adapts the series' signature gentle fantasy and comedy style into a feature-length format. The new characters and expanded world introduced in the trailer also make it a potential entry point for viewers unfamiliar with the Chiikawa series, while retaining the specific tone and aesthetic of the source material.

The film is aimed at existing Chiikawa fans while also serving as an accessible entry point for new audiences through its original adventure story directed by Kei Oikawa.

Common Questions

Who joins the cast of Chiikawa the Movie The Secret of Mermaid Island?

According to the June 2026 report by TheMovieBlog, the cast of the film introduces new voice actors for characters debuting in the first feature-length Chiikawa adventure directed by Kei Oikawa at Cygames Pictures.

What does the new Chiikawa movie trailer reveal?

The new trailer for Chiikawa the Movie: The Secret of Mermaid Island, covered by TheMovieBlog in June 2026, reveals the film's new cast members and the involvement of director Kei Oikawa and production studio Cygames Pictures.

Who is the director and producer of the Chiikawa movie?

The director of Chiikawa the Movie: The Secret of Mermaid Island is Kei Oikawa. The production studio responsible for the film is Cygames Pictures, as confirmed in TheMovieBlog's June 2026 trailer report.

Sources and Methodology

This article is based exclusively on the source material provided: "Chiikawa Movie Secret of Mermaid Island New Trailer Cast" published on TheMovieBlog (June 2026). The core topic of the source is the announcement of new cast members for the film directed by Kei Oikawa at Cygames Pictures.

No additional external sources were consulted for the specific claims regarding the cast, trailer, director, and production studio. Context regarding the wider Chiikawa franchise (origins, genre, characters) is derived from established public knowledge of the Nagano property.

This article was last updated on December 13, 2024.