1girl, beach, bikini, bikini_under_clothes, black_choker, breasts, brown_hair, choker, fingernails, hiiragi_ken, ice_cream_cone, idolmaster, idolmaster_shiny_colors, jacket, looking_at_viewer, lying, mat, medium_breasts, multicolored_bikini, multicolored_clothes, nail_polish, on_side, open_mouth, outdoors, red_eyes, side_ponytail, smile, solo, sonoda_chiyoko, striped, striped_bikini, sweatdrop, swimsuit