1girl, ass_visible_through_thighs, bikini, blue_sky, brown_hair, day, flat_chest, from_below, green_bikini, hair_bun, idolmaster, idolmaster_cinderella_girls, long_hair, mushoku_santarou, navel, outdoors, red_eyes, shiny_skin, side-tie_bikini_bottom, single_hair_bun, skindentation, sky, solo, standing, swimsuit, takamori_aiko, wet