The default costume for hololive Indonesia's Vestia Zeta, as seen in her official profile picture.
It consists of a white long-sleeved cropped jacket with elbow cutouts, a shortwhite pleated dress with a deer accessory on the left, a black thigh strap with pouch asymmetrical mismatched legwear (a white kneehigh on her right and a black over-kneehigh on her left) and black platform loafers.
This tag implicates vestia_zeta (learn more).