I know which place you're talking about, actually! It is cool, but I don't think it'd be practical to move such a large amount of cosplayers outside.
(Edit: Whoops, totally didn't realize I was double posting... sorry.)
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- Judal (Magi: Labyrinth of Magic): 16% (Wig Overhaul) Katsucon 2017
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- Blanche (Pokemon GO): 82% (Sewing) Katsucon 2017
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