1girl bags_under_eyes bangs black_hair blue_archive blue_eyes blue_hairband blue_neckerchief blush cardigan closed_mouth crossed_bangs hair_between_eyes hairband halo highres jewelry kuroha_uma long_hair looking_at_viewer neckerchief necklace off_shoulder sailor_collar school_uniform serafuku simple_background solo ui_(blue_archive) upper_body white_background white_sailor_collar