A Glimpse into the Offerings
The POP UP STORE will showcase a curated collection from both Shimamura and Birthday, ensuring something special for every young fashion enthusiast.
Shimamura Highlights:
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Characters: Timeless favorites such as DISNEY, alongside other popular characters.
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Influencers: Collaborations with well-known figures like RINA (RRmoment), mukuzoo, airi, and Tokun.
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Original Brands: Innovative items from FIBER HEAT and LOGOS DAYS.
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Happy Bags/Lucky Bags: A selection of popular items, some previously released in stores.
Birthday Highlights:
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Characters: The adorable JUST HUG ME series.
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Original Brands: Stylish designs from &mignon.
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Influencers: Exclusive items from moi moi.
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NB (National Brands): Trendy selections from wiggle wiggle and I LOVE J.
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Lucky Bags: A portion of the popular lucky bags available in stores since January 1.
Event Details and Access
The POP UP STORE will operate from January 5 (Monday) to January 19 (Monday), 2026. On the opening day, January 5, business will commence at 13:00. Regular operating hours will be 10:00 to 21:00, with special closing times on January 12 (19:00) and the final day, January 19 (17:00). Visitors are advised that entry restrictions may be implemented during periods of high congestion.
For convenience, all purchases at the POP UP STORE will be cashless, accepting credit cards and various barcode payment options. Cash payments will not be available.
This debut venture into a bustling station hub marks an exciting new chapter for both brands, offering a unique shopping experience right in the heart of Tokyo. For the latest updates on product availability and other details, customers are encouraged to follow Shimamura’s official SNS channels and Birthday’s official Instagram account (@grbirthday).
For those unable to visit in person, the Shimamura Group’s online store, “Shimamura Park,” offers a broader selection of products:
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Shimamura Group Official SNS: https://www.shimamura.gr.jp/sns/
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Shimamura Group Online Store “Shimamura Park”: https://www.shop-shimamura.com/
This strategic move to a high-traffic location like Tokyo Station is likely to broaden the appeal of kawaii children’s fashion, making it more accessible to a wider audience, including commuters and tourists. It hints at a future where beloved Japanese fashion brands increasingly integrate into daily urban life, offering convenient and delightful shopping experiences.
