1girl, ahoge, akimikan_(2.5deciliter), arisugawa_natsuha, armpits, arms_up, bikini, blush, breasts, cleavage, collarbone, crop_top, denim, denim_shorts, goggles, goggles_on_head, groin, idolmaster, idolmaster_shiny_colors, looking_at_viewer, medium_breasts, navel, orange_hair, short_shorts, shorts, simple_background, smile, solo, stomach, swimsuit, white_background, yellow_bikini, zipper_bikini