casul, rio (blue archive), blue archive, absurdres, highres, 1girl, alternate costume, bare shoulders, belt collar, bikini, black bikini, black hair, black halo, blunt bangs, blush, breasts, bright pupils, cleavage, collar, collarbone, criss-cross halter, criss-cross straps, feet out of frame, hair ornament, hairclip, halo, halterneck, head tilt, huge breasts, legs folded, long hair, looking at viewer, millennium science school logo, navel, parted lips, red eyes, ringed eyes, sideboob, simple background, sitting, solo, stomach, swimsuit, thigh strap, thighs, very long hair, white background, white pupils