It is proven without the ringfit stuff. Then again she was present in the Hologamers collab of that game. However Korone is so active that she keeps moving around and shaking like an overexcited puppy.
Another is obviously Korone has the stamina to outlast every hololive member in playing a gaming stream. But then again that is another story.
We also (recently in EN server) got a direct Korone expy on Arknights, drawn by Nagu (if you know who, then it's even deeper in the rabbithole). It's even matches to the boxing theme!
We also (recently in EN server) got a direct Korone expy on Arknights, drawn by Nagu (if you know who, then it's even deeper in the rabbithole). It's even matches to the boxing theme!