1girl, black shirt, blue archive, blue buruma, blush, breasts, buruma, full-face blush, halo, id card, indoors, jacket, jacket partially removed, lanyard, looking at viewer, medium breasts, official alternate costume, purple hair, ryouta (ryouta335), shirt, sitting, solo, star sticker, sticker on face, sweat, t-shirt, thighs, track jacket, yuuka (blue archive), yuuka (gym uniform) (blue archive)