1girl, arm_support, beach, bikini, blue_bow, blue_neckerchief, blue_sailor_collar, blue_sky, blush, bow, breasts, closed_mouth, cloud, collarbone, day, embarrassed, hand_up, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, legs, looking_at_viewer, makabe_mizuki, navel, neckerchief, ocean, on_floor, outdoors, purple_hair, rocktaso_co_ltd, sailor_bikini, sailor_collar, sailor_swimsuit_(idolmaster), sand, shadow, short_hair, side-tie_bikini_bottom, sidelocks, sitting, sky, small_breasts, solo, stomach, swimsuit, thighs, v, wavy_hair, white_bikini, yellow_eyes