1girl, adjusting_clothes, adjusting_swimsuit, ahoge, arm_at_side, ass, asymmetrical_bangs, back, bikini, blush, breasts, closed_mouth, cloud, cowboy_shot, dusk, evening, from_side, hand_under_clothes, hand_up, holding, holding_innertube, horizon, idolmaster, idolmaster_million_live!, innertube, looking_at_viewer, looking_to_the_side, medium_breasts, orange_eyes, orange_hair, outdoors, pink_bikini, short_hair, sky, smile, solo, standing, sunlight, swimsuit, turning_head, water, yabuki_kana, yukipo_p_(ss900yellowducati)