shj1998z, ui (blue archive), ui (swimsuit) (blue archive), blue archive, absurdres, highres, 1girl, bare arms, bare back, bare legs, bare shoulders, bikini, black bikini, black hair, blush, crossed bangs, from behind, hair between eyes, hairband, halo, high ponytail, long hair, looking at viewer, official alternate costume, open mouth, ponytail, purple eyes, purple hairband, sandals, sidelocks, solo, sweatdrop, swimsuit, yellow halo