Nyaru had a bad experience with a mutual (who didn't recognize her) during Offkai.
Stuff like this is kind of why I understand some VTubers do go undercover during cons and interact with the fans/artists/other VTubers, to see them "in the wild", and find out if they're anything like how they are online. On the other hand, it does get my opsec senses tingling when they share it after the fact, but then again this is Nyaru.
At least someone else had fun going undercover during OffKai:
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