A Confluence of Style and Sweetness
The collaboration was born from a shared vision: the vibrant, “colorful” and “petit refresh” (small refreshment) world of ‘Ice no Mi’ resonated deeply with ’23ku’s concept of “adult playfulness.” This synergy has resulted in a special limited-edition collection that captures the essence of both brands through ’23ku’s popular winter color sweatshirts.
The “Ice no Mi”-Inspired Sweatshirt Collection
The sweatshirts are crafted from a clear, firm back-fleece material that minimizes pilling. The inner surface, designed to touch the skin, features delicately arranged soft loops, promising a comfortable feel and cozy wear. The collection is available in three web-exclusive colors, directly inspired by ‘Ice no Mi’ flavors: grape (purple), muscat (green), and cafe au lait (brown).
These sweatshirts are envisioned as a comforting “reward item” for oneself after a year of hard work, offering a “meltingly soft hue and gentle comfort” that adds a touch of happiness as the colder season deepens.
Product Details:
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Product Name: [‘Ice no Mi’ Inspired Colors] Color Sweatshirt
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Price: Regular size 13,970 yen (tax included), L size 15,070 yen (tax included), S size 13,970 yen (tax included)
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Colors: Grape, Muscat, Cafe au Lait
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Product Page: https://crosset.onward.co.jp/items/KKWOGW0134
The design builds upon ’23ku’s highly popular color sweatshirts, featuring a slightly longer length to cover the hip line and wider sleeves for easy layering. A slit at the back hem allows for versatile styling with various bottom silhouettes, from tight pants to voluminous skirts. The fabric is horizontally woven to prevent vertical shrinkage, ensuring durability. A subtle touch of playfulness is added with “Bonne journée” (Have a good day) embroidered on the left cuff.

“Sweet, Melting Imaginary Time” with Hiromu Honda
To commemorate the launch, a special video series titled “Hiromu Honda Meets 23ku: Compliment-Worthy Sweatshirt ~Sweet, Melting Imaginary Time like Ice~” starring ROIROM’s Hiromu Honda will be progressively released on the special feature site from December 23rd (Tuesday).

Video Release Schedule:
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Cafe Date Edition: December 23rd (Tuesday), Noon JST
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Drive Date Edition: January 6th, 2026 (Tuesday), Noon JST (scheduled)
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Office Edition: January 13th, 2026 (Tuesday), Noon JST (scheduled)
These three short films depict everyday scenes—a cafe date, a drive date, and an office setting—where wearing the color sweatshirt and enjoying a piece of ‘Ice no Mi’ leads to a “sweet, melting special moment” with Honda. The theme invites viewers into a delightful fantasy, capturing the essence of a refreshing break.
Special Feature Site: https://crosset.onward.co.jp/feature/2025winter/23ku_meets_hondahiromu/
Exclusive Purchase Benefits and Campaign
Customers purchasing the collaborated sweatshirts will receive several exclusive benefits:
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Signed Print Card: All purchasers will receive a card with a printed signature, matching the color of the purchased sweatshirt.

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Hiromu Honda Message Video: All purchasers can access a special message video from Hiromu Honda himself. The content of the message video varies depending on the color of the sweatshirt purchased.
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Viewing Period for Grape Color: December 23rd, 2025 (Tuesday) Noon JST – March 22nd, 2026 (Sunday) 23:59 JST
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Viewing Period for Muscat Color: January 6th, 2026 (Tuesday) Noon JST – March 22nd, 2026 (Sunday) 23:59 JST
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Viewing Period for Cafe au Lait Color: January 13th, 2026 (Tuesday) Noon JST – March 22nd, 2026 (Sunday) 23:59 JST
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Autographed Cheki (Polaroid) Lottery: Nine lucky customers who purchase an eligible item and apply will be entered into a lottery to win one of nine unique autographed Cheki photos by Hiromu Honda.

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Application Method: Access the application form via the QR code on the letter included with your purchased sweatshirt (Grape, Muscat, or Cafe au Lait).
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Application Period: December 23rd, 2025 (Tuesday) – January 31st, 2026 (Saturday)
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Winner Announcement: Winners will be notified by the shipment of their prize, expected to be sent sequentially from late February to the address provided in the application form.
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Please note that the signed print card and message video offers are valid for orders placed until February 28th, 2026 (Saturday), or until the eligible products are sold out.
About “Ice no Mi”

“Ice no Mi” are delightful, bite-sized gelatos known for their concentrated, rich flavor derived from real ingredients. Launched in 1986, these spherical, colorful treats are designed to offer a quick and refreshing break. Each pack contains 12 pieces (7ml each), totaling 84ml of concentrated joy.
About Hiromu Honda (ROIROM)

Born on July 10th, 2000, Hiromu Honda gained significant attention through various audition programs both domestically and internationally. He began activities as part of the idol duo ‘ROIROM’ with Michiki Hamakawa in May 2025. The duo made their pre-debut with the digital single “Dear DIVA” on November 19th, followed by a debut showcase at Ariake Arena on November 23rd. Their digital single “My Princess” was released on December 10th.
About “23ku”

’23ku’ operates under the concept of “THE STANDARD, NEW ME,” offering simple yet elegant clothing cherished across generations and eras. The brand strives to provide constantly fresh, chic, and modern styles that embody the current mood, allowing individuals to feel beautiful and comfortable in their own unique way.
Fashion’s Future: Blending Comfort and “Kawaii” Charms
This collaboration between ’23ku’ and ‘Ice no Mi’ exemplifies a growing trend in Japanese fashion: the playful integration of unexpected elements from daily life and popular culture into wearable art. It’s a delightful fusion where the everyday joy of a snack transforms into a fashion statement, inviting wearers to embrace a moment of “petit refresh” in their style. Such innovative partnerships not only offer unique consumer experiences but also contribute to the evolving landscape of Kawaii culture abroad, proving that charm and comfort can go hand-in-hand, creating new avenues for self-expression that are both sweet and stylish.


