It's korean, I can derive that from that ass and because the text is korean
Korean chicks are literally next level.
If you want to blow out your brains:
(sfw)
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Oh and once you get into korean chicks, you'll get how vastly different they are from other asians.
High framerate I think. Sometimes the video quality is good so it acts as a placebo and makes me think its 60fps when its not. This one looks like 60fps but I'm not 100% sure
I have a lot more of those, and I just uploaded a handful. Hopefully these links work. If they don't I'll be sad