1girl, anastasia_(idolmaster), aqua_eyes, armpits, arms_up, black_bra, blush, bra, breasts, cleavage, grey_hair, idolmaster, idolmaster_cinderella_girls, lace-trimmed_bra, lace_trim, locker, locker_room, looking_at_viewer, medium_breasts, open_mouth, rum_raisin_(chihiromakita19), shirt, short_hair, skindentation, solo, steaming_body, sweat, sweatdrop, thighhighs, underboob, underwear, undressing, white_shirt