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Collaboration goods between gaming PC brand Astromeda and THE IDOLM@STER CINDERELLA GIRLS go on sale at the Astromeda POPUP Store on the 6th floor of Animate Akihabara Building 2 from October 24 to November 1, 2026. Mobile batteries and rubber mouse pads featuring 15 idols are available.
"THE IDOLM@STER SHINY COLORS" pop-up "283PRODUCTION POP UP SHOP: Smiles, That Eternal Light" runs from November 27 to December 13, 2026 at Bushiroad Creative Store Akihabara Main Store, displaying and selling goods featuring new illustrations that portray the idols as paintings.
An ARC-FLAGS POP UP CORNER featuring Megumi Tokoro, Ayumu Maihama and Mizuki Makabe from THE IDOLM@STER MILLION LIVE! runs from November 6 to November 23, 2026, on the 1F of Kotobukiya Akihabara. Merchandise details are to be announced.
A collaboration marking the 15th anniversary of "THE iDOLM@STER Cinderella Girls" runs at content shop TOPPA!!! BASE AKIBA from August 27 to September 16, 2026, featuring newly drawn illustration merchandise and a digital photo booth.
A pop-up store themed around "Opera Seria," a unit from THE iDOLM@STER Million Live!, runs at Kotobukiya Akihabara from September 11 to 27, 2026, featuring newly drawn merchandise.