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So Reine is premiering her 3D in 4th Fes, but it's kind of a unique circumstance compared to any other members. When Holomyth/HoloID G1 appeared in Holofes, they had 3D models of their original outfits made, and it could easily be used for 3D Live's/Home 3D as well.
But Reine is getting an Idol Outfit as her 3D debut. That's never happened before, they've always just worn their OG outfits on debut in Holofes. I just hope it doesn't delay her 3D live because of it