sinder (vtuber) (2nd costume)
The 2nd outfit of the Indie VTuber Sinder as seen in post #6776848.
She wears a black halterneck leotard, with a see-through navel, a chain around her neck, black bridal gauntlets, black thighhighs and a o-ring thigh strap.
This tag implicates sinder_(vtuber) (learn more).