Chiikawa Movie Surpasses ¥18.4 Billion at Japan's Box Office

Chiikawa the Movie: The Secret of the Mermaid Island has crossed another significant milestone in Japan, surpassing ¥18.4 billion in cumulative box-office revenue.

According to figures reported by Japanese entertainment outlets MANTANWEB and Cinema Today on October 26, 2026, the animated film has also attracted more than 12.65 million admissions since its theatrical release.

The film opened in Japan on July 24 and has continued drawing audiences well beyond its opening weeks.

During the October 23–25 weekend, it ranked second at the Japanese box office, earning approximately ¥279 million from 185,000 admissions, according to Cinema Today's report of industry box-office data.

The movie adapts the Siren Arc from Nagano's popular Chiikawa manga, taking Chiikawa, Hachiware, Usagi, and their companions on an adventure involving a mysterious island.

Nagano wrote the screenplay, Kei Oikawa directed the film, and Cypic handled animation production.

The latest results demonstrate the franchise's sustained appeal in Japanese cinemas, extending its reach beyond the short-form television anime and original manga.

With the film still performing strongly after several months in theaters, its cumulative total may continue to rise. Any further records or final box-office figures will require updated official reporting.