1girl absurdres arm_up bangs blue_eyes blunt_bangs blush collarbone collared_shirt day go-toubun_no_hanayome grey_neckerchief grey_shirt grey_skirt highres long_hair looking_at_viewer midriff nakano_nino neckerchief open_mouth outdoors red_hair sailor_collar sailor_shirt school_uniform serafuku shirt short_sleeves skirt slope_(check238) solo stomach very_long_hair white_sailor_collar