2girls black_serafuku chair commentary_request desk from_side glasses greyscale highres kneehighs medium_skirt miura_kazuki monochrome multiple_girls original school_chair school_desk school_uniform serafuku short_hair sitting skirt socks solo_focus window  1girl black_eyes black_footwear black_hair black_skirt black_vest collared_shirt crosshatching fence greyscale hatching_(texture) highres looking_at_viewer miura_kazuki monochrome original shadow shirt shoes short_hair short_sleeves skirt solo squatting vest white_shirt