1girl, ass, blue_archive, blue_skirt, clothes_lift, from_side, halo, kotatsu_(kotatsu3), koyuki_(blue_archive), long_hair, lying, on_side, panties, pink_hair, shirt, skirt, skirt_lift, solo, striped, striped_panties, thighhighs, thighs, twintails, underwear, white_shirt, white_thighhighs