1girl, d, bikini, blue_bikini, blush, breasts, cleavage, day, front-tie_bikini_top, front-tie_top, hair_between_eyes, halterneck, holding, holding_innertube, idolmaster, idolmaster_shiny_colors, innertube, large_breasts, leaf, long_hair, looking_at_viewer, noeru, osaki_tenka, outdoors, pool, red_hair, side-tie_bikini_bottom, smile, solo_focus, standing, string_bikini, swimsuit, wet, wet_clothes, wet_swimsuit, yellow_eyes