The Chiikawa movie, titled "Movie Chiikawa: The Secret of the Mermaid Island," is in release in Japan and held first place at the box office for the weekend of August 21-23, 2026, with no new films entering the top 10 that weekend. Separately, a limited Chiikawa Halloween 2026 merchandise line launched on Talking ODM on September 1, 2026.
The most recent coverage tracks two separate developments: the theatrical run of the Chiikawa movie and a new merchandise drop. The film, "Movie Chiikawa: The Secret of the Mermaid Island," was the number one title in Japan for the weekend of August 21-23, according to the ranking released by Kogyo Tsushinsha. It drew 825,800 attendees and grossed 1.242 billion yen over that weekend, raising its cumulative attendance past 7.66 million and its cumulative gross past 11 billion yen. The entire top 10 was closed to new entries, and the top four positions were unchanged from the prior week. The film's third weekend outperformed its second, a move credited to repeat-viewer incentives such as the pullback car gift and farewell screenings.
On September 1, Talking ODM, a print-on-demand service, added a limited Chiikawa line under the name Chiikawa HAPPY HALLOWEEN 2026. The set contains six designs, three of which are named: a Halloween scene with Chiikawa, Hachiware, and Usagi; Edamame Kurimanju; and Ichigo Daifuku Rakko. The other three motifs are unspecified in the announcement. Each design can be printed across nine product types, including T-shirts, long-sleeve T-shirts, sweatshirts, tote bags, satin frill drawstring bags, eco bags, mini towels, and mugs, plus a newly added pullover parka. Because of Talking ODM's model, every motif is available on every product, so the Halloween art is not tied to a single item. The sale starts at noon on September 1 and runs through November 1.
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Sep 1
Talking ODM, the print-on-demand service that lets buyers pair a design with a product, added a limited Chiikawa Halloween line on September 1. The set, called Chiikawa HAPPY HALLOWEEN 2026, carries six designs and goes on sale at noon, running through November 1. Three of the motifs are named: a Halloween scene with Chiikawa, Hachiware, and Usagi; Edamame Kurimanju; and Ichigo Daifuku Rakko. The remaining three are not specified in the announcement. The designs can be printed across nine product types: T-shirts, long-sleeve T-shirts, sweatshirts, tote bags, satin frill drawstring bags, eco bags, mini towels, and mugs. The lineup also adds a pullover parka as a new product option. Talking ODM's model means each of the six motifs is available on every product, so the Halloween art is not tied to a single item. The sale period covers the full Halloween season and extends into early November.
Aug 28
The weekend box office ranking for August 21-23, released by Kogyo Tsushinsha, shows "Movie Chiikawa: The Secret of the Mermaid Island" in first place with 825,800 attendees and 1.242 billion yen, pushing its cumulative totals past 7.66 million attendees and 11 billion yen. No new films entered the top 10, and the top four slots were unchanged from the previous week.