1girl ass bangs black_shirt blue_archive blue_buruma blue_eyes blush breasts buruma commentary facial_mark from_behind halo highres id_card jacket lanyard long_hair looking_at_viewer looking_back open_clothes open_jacket parted_lips ponytail purple_hair sakura_yuki_(clochette) shirt short_sleeves simple_background sketch solo star_(symbol) star_facial_mark sticker sticker_on_face symbol-only_commentary very_long_hair white_background yuuka_(blue_archive) yuuka_(gym_uniform)_(blue_archive)