1girl ass bare_arms bare_shoulders black_bra black_panties blue_eyes blush bra braid breast_padding breasts brown_hair cleavage closed_mouth collarbone commentary cowboy_shot from_behind hair_between_eyes hand_on_own_chest hayasaka_ai haysaca_a._smithee kaguya-sama_wa_kokurasetai_~tensai-tachi_no_renai_zunousen~ long_hair medium_breasts mirror mujinbensin navel panties patreon_username reflection revision school_uniform serafuku shirt side_braid smile solo stomach underwear underwear_only white_shirt