1girl ^_^ ^o^ argyle_hairband ass_visible_through_thighs black_hair blush breasts closed_eyes cowboy_shot heart highres idolmaster idolmaster_cinderella_girls large_breasts panties ponytail_korosuke sagisawa_fumika shirt simple_background skirt smile solo sportswear tennis_uniform thigh_gap underwear white_background white_panties white_shirt white_skirt