1girl, bare_arms, bare_shoulders, bikini, blush, breasts, cleavage, closed_mouth, collarbone, grey_hair, groin, hand_up, idolmaster, idolmaster_shiny_colors, kuroba_aki, long_hair, looking_at_viewer, medium_breasts, navel, purple_eyes, simple_background, smile, solo, strapless, strapless_bikini, swimsuit, thigh_gap, white_background, white_bikini, yukoku_kiriko