You're in luck dude. Unlike a good many videos on Niconicodouga, I actually know this one.
Takayama Rei 高山れい
And it looks like that clip came from this video:
https://www.akiba-online.com/threads/grd-006-rei-be-my-baby-2014-05-16.1320775/
She has a few more videos that can be found here too. Just search for her name.