She is Koseki Bijou from Hololive EN.

As you try too break the Crystal at your left foot It was useless there nothing you can do to stop her and it was foolish of you too come too this huge Crystal Cave. As you raise your head too look at her you can see she coming closer.. Closer... And closer with eco...Of Fear.. Lust Love... And.. Desire..

Bijou : Ah~ finally after long years of living in this cave I finally see it.. Such beautiful Aura~ Such~ Beuty I can have for myself forever~