Ok, I feel like I have to address the rumors since I was the one who originally posted the video. I'm not running defence for Yuko, I don't really watch her and her dynamic with chat creeps me out, but I do want to dispel some of the rumors surrounding the event. First off she did not go to Nuggetfest with the guy she held on a leash at the other con, she went with Guardbro, who looks like this:

No resemblance to the doughy guy at the anime con. Guardbro slept in the same quarters as Rye/Yuko and even commented that she would snarl and murmur in her sleep. However, he is married, so I don't believe anything happened between them or with anyone else, mainly because I don't believe he is stupid enough to implicate himself on the internet if anything actually did happen. If you listened to them talk to each other in the video they sound like they have a father/daughter or older brother/little sister dynamic rather than that of two people sleeping together. Stranger things have happened on the internet and I could definitely be wrong but I don't think so. People were spreading rumors about her at Nuggetfest, not malicious ones but the kind you would make up about a friend to yank their chain in front of other people. Hell, I only knew about the video because someone in
Metokur's live chat was talking about how a vtuber was pointing guns at people at Nuggetfest. Some of these rumors may have spun out of control and her going to the fest with a man may have turned into she slept with everyone there. The video has been taken down before, shortly after I posted it here. I originally thought this was because they mentioned what state she lived in when Guardbro talked about picking her up and driving her to the state where the fest was being held and it could be that they are trying to scrub personal information. Keep in mind I haven't seen the video since I posted it here so I could have some details wrong.