1girl, ae_iueo, alternate_costume, belt, bikini, bracelet, brown_belt, brown_hair, closed_mouth, collarbone, hair_ornament, hairclip, higuchi_madoka, holding, holding_water_gun, idolmaster, idolmaster_shiny_colors, innertube, jewelry, looking_at_viewer, mole, mole_under_eye, navel, pink_nails, purple_eyes, short_hair, side-tie_bikini_bottom, solo, stomach, swept_bangs, swimsuit, water, water_gun, wet