A large collection of commemorative goods for 映画ちいかわ 人魚の島のひみつ (Movie Chiikawa: The Secret of Mermaid Island) will go on sale from Friday, July 10, 2026, rolling out across the “Chiikawa Market” online store, Chiikawa Land shops nationwide, dedicated POP UP STOREs, and “Movie Chiikawa POPUP in TOHO Cinemas” locations.

About Chiikawa and the Film

Chiikawa is a manga by illustrator nagano, originally serialised on X (formerly Twitter) from 2020. The series follows the funny, bittersweet, and occasionally intense daily lives of Chiikawa, Hachiware, Usagi, and a colourful cast of companions. The anime adaptation, which began airing in 2022, has surpassed 400 million cumulative views on YouTube, drawing fans from across the globe.

The film marks the franchise’s first theatrical feature, adapting the beloved long-form “Siren Arc” storyline. Production is handled by Sai-Pic, the studio praised for its high-quality action animation in Gekijouban Uma Musume Pretty Derby: Atarashii Jidai no Tobira. Fully supervised by nagano, the adventure unfolds with sweeping music and dynamic visuals. The film opens nationwide in Japan on Friday, July 24, 2026.

Merchandise Highlights

Mascots & Plushies

The mascot lineup features Chiikawa, Hachiware, Usagi, the used-bookstore character, Momonga, Rakko, Kurimanju, Shisa, Shimajiro, Hitoha, Futaba, and a Mermaid. The Siren mascot comes in two facial expressions: “spicy face” and “normal face”.

Plush highlights include the “slightly large Siren plushie” and the “sturdy sitting Shimajiro plushie”.

Accessories & Bags

• Scale-shaped accessory pouch
• Two-piece pouch set with kombu-frill detailing
• Resort tote bag themed to the Mermaid Island

Collectibles & Décor

• Mini Soft-Vinyl Figure Collection — 10 designs in total
• Siren Light-Up Keychain — eyes glow in the dark
• LED Room Light — recreates the scene of Chiikawa, Hachiware, and Usagi gathered around a campfire

Purchase Novelties

Participating stores will distribute free gifts with purchase:

• Spend ¥8,800 (tax incl.) or more → receive one random “Okao Badge” (4 designs)
• Every ¥2,200 (tax incl.) spent → receive one random Trading Card (6 designs)
• Chiikawa Market (online store): spend ¥3,300 (tax incl.) or more → receive a mini swim ring

Stockists

Chiikawa Land

Participating branches include Harajuku, Osaka Umeda (from Aug. 6), Fukuoka Parco, Kyoto Shijo Kawaramachi, TOKYO Station, Tokyo Skytree Town Solamachi, Nagoya Parco, Sendai Parco, Sapporo Parco, Yokohama, Hiroshima Parco, Shinsaibashi Parco, Shinjuku, Kanazawa Forus, Ikebukuro Parco, and Koshigaya Lake Town.

POP UP Stores & Special Venues

• Kiddy Land Osaka Umeda POP UP SHOP1 — until Aug. 5
• Movie Chiikawa POP UP STORE — at AEON Mall locations across Japan, Spa Resort Hawaiians Big Aloha, and 華山1914 Creative Park (Taipei, Taiwan)
• Movie Chiikawa POPUP in TOHO Cinemas — at 25 TOHO Cinemas branches nationwide
• Odaiba FunRising Chiikawa Odaiba Shop (22F & 1F Fuji TV Mall) — from July 25
• Nationwide theatre merchandise counters — from July 24
• CHIIKAWA SHOP in TAIPEI