1girl, :o, absurdres, adjusting_clothes, adjusting_swimsuit, ass, bare_shoulders, beach, bikini, blue_sky, blush, breasts, day, dutch_angle, from_behind, green_hair, hairband, highres, holding, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, lens_flare, looking_at_viewer, looking_back, medium_breasts, open_mouth, otonashi_kotori, outdoors, red_eyes, ribbon, shuucream_(syuichi), sky, solo, swimsuit, yellow_bikini, yellow_hairband, yellow_ribbon