Chiikawa The Movie Surpasses 16.85 Billion Yen, Becomes 14th Highest-Grossing Film in Japan

The anime film Chiikawa The Movie: Secret of the Mermaid Island (released July 24) has surpassed 11.55 million attendees and 16.85 billion yen in box office revenue within 66 days of its release. Already ranking No. 1 among films released in 2026, it has surpassed the 16.67 billion yen gross of THE FIRST SLAM DUNK (2022) to claim 14th place on Japan's all-time box office leaderboard.

Furthermore, it was announced that a 6th theater audience bonus—charm mini-figures—will be distributed starting October 10. The figures will feature two designs (Chiikawa & Hachiware, Usagi & Momonga) distributed at random.

Released nationwide across 447 theaters (382 standard + 65 IMAX theaters), this is the first feature film for Chiikawa. It adapts the fan-favorite long-form "Siren Arc" written by original creator Nagano. The story follows Chiikawa and friends as they receive an invitation to a "special island" for a training camp. This long-awaited film adaptation of one of the series' most popular story arcs—which trended on social media with every new chapter—was fully supervised by Nagano.

On opening day, theaters nationwide were packed from early morning. TOHO Cinemas Ikebukuro hosted a record 41 screenings in a single day. Theaters focused heavily on Chiikawa The Movie as a flagship summer blockbuster, resulting in an opening-day box office revenue of 990 million yen. This surpassed the opening-day record of 960 million yen set by Detective Conan: The Million-dollar Pentagram (2024), which went on to earn a franchise-record 15.8 billion yen, marking a massive start.

Chiikawa The Movie: Secret of the Mermaid Island Box Office Trajectory

• Opening Day: 990 million yen

• 3 Days: 1.5 million attendees / 2.24 billion yen

• 7 Days: 2.28 million attendees / 3.33 billion yen

• 10 Days: 3.05 million attendees / 4.4 billion yen

• 14 Days: 3.5 million attendees / 5.0 billion yen

• 17 Days: ~6.7 billion yen

• 20 Days: 5.63 million attendees / 8.07 billion yen

• 24 Days: 6.45 million attendees / 9.28 billion yen

• 30 Days: Reached 10.0 billion yen

• 31 Days: 7.66 million attendees / 11.05 billion yen

• 38 Days: 8.49 million attendees / 12.23 billion yen

• 45 Days: 9.6 million attendees / 13.89 billion yen

• 52 Days: 10.0 million attendees / 14.66 billion yen

• 59 Days: 10.857 million attendees / 15.84 billion yen

• 62 Days: 11.33 million attendees / 16.52 billion yen

• 66 Days: 11.55 million attendees / 16.85 billion yen

Source : ORICON NEWS