1girl, bad_pixiv_id, beach, bikini, blue_shirt, blue_sky, breasts, cleavage, cloud, cowboy_shot, day, floral_print, frilled_bikini, frills, front-tie_top, green_hair, hanamasa_ono, horizon, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, medium_breasts, mole, mole_under_mouth, ocean, open_clothes, open_shirt, otonashi_kotori, outdoors, red_eyes, shirt, short_hair, side-tie_bikini_bottom, sky, smile, solo, standing, swimsuit, yellow_bikini