lancheu, avant garde (blue archive), noa (blue archive), rio (blue archive), yuuka (blue archive), blue archive, commentary request, highres, 3girls, arm support, armpits, arms behind head, arms up, black hair, black halo, blurry, blurry background, blush, breasts, bucket, cleavage, closed mouth, crossed legs, day, feet out of frame, hair between eyes, hair ornament, hairclip, halo, large breasts, long hair, looking at viewer, mechanical halo, multiple girls, naked towel, onsen, outdoors, partially submerged, ponytail, purple eyes, purple hair, red eyes, robot, rock, same-sex bathing, shared bathing, sitting, sky, smile, soaking feet, solo focus, steam, stone floor, thighs, towel, very long hair, water, water drop, wet, white hair, wooden bucket