Sin from Goddess of Victory: NIKKE

You can remove her voice converter if you want by removing the 'headwear, fake animal ears, mouth mask,' tags.

If you don't want her face accidentally generating uncovered use tags for facial expressions like "happy" instead of "smile", etc.

Appearance:

nkkSn, 1girl, solo, black hair, very long hair, ponytail, purple eyes, breasts, 

Outfit:

snDef, 
headwear, fake animal ears, mouth mask, 
bandeau, strapless, cleavage, purple jacket, off-shoulder jacket, cropped jacket, black yoga pants, ankle cuffs, sneakers,