1girl ass back_cutout bare_shoulders black_dress black_hair blue_archive blue_eyes china_dress chinese_clothes clothing_cutout double_bun dragon_print dress eyelashes from_below hair_bun highres hoshi_usagi kisaki_(blue_archive) long_hair looking_at_viewer looking_back side_slit simple_background sleeveless sleeveless_dress solo twintails very_long_hair white_background