The “Gridman Universe: Heisei Defense Force Heroines” pop-up store is set to open on Friday, September 18, 2026, on the 6th floor of Shinjuku Marui Annex! Trading goods, acrylic stands, T-shirts, and more featuring newly drawn illustrations of the heroines dressed in Defense Force uniforms from *Ultraman Tiga* to *Ultraman Mebius* will be available, and the event will also take place at Namba Marui starting Friday, October 16.