1girl, ahoge, arm_behind_head, armpits, ass, black_hair, blue_eyes, blush, breasts, closed_mouth, from_side, long_hair, looking_back, nipples, nude, ponytail, pool, poolside, red_ribbon, rei_no_pool, ribbon, shiny, shiny_hair, sidelocks, small_breasts, solo, squatting, tied_hair, water, wet, wet_hair