Rule 34 Dev - 1girl arms_at_sides black_hair black_serafuku black_skirt blush bob_cut frown inverted_bob kon_yuka long_sleeves looking_at_viewer miniskirt neckerchief pleated_skirt red_background red_neckerchief school_uniform serafuku short_hair simple_background skirt skirt_set solo upper_body user_szdt4488 world_trigger|16359157035