Chiikawa movie crosses 11 billion yen at box office

The Japanese animation scene is buzzing with the massive success of Chiikawa the Movie: The Secret of the Mermaid Island.

Released on July 24, 2026, this cinematic adaptation of illustrator Nagano’s beloved web manga has become a historic box-office sensation.

Following the main trio—Chiikawa, Hachiware, and Usagi—on a dangerous quest to a mysterious island, the film adapts the gripping 'Siren Arc.'

Its popularity was immediate, earning 990 million yen on opening day alone.

The franchise, which began on X (formerly Twitter) in 2020, is famous for blending adorable aesthetics with intense, emotional storytelling.

It is a true cultural phenomenon that shows no signs of slowing down.