1girl absurdres arm_under_breasts blue_archive blue_buruma blue_eyes blue_hair blue_jacket blue_shirt blush breasts buruma closed_mouth cowboy_shot embarrassed halo highres jacket large_breasts long_hair long_sleeves looking_at_viewer off_shoulder official_alternate_costume reinama shirt short_sleeves simple_background solo standing thighs wavy_mouth white_background yuuka_(blue_archive) yuuka_(gym_uniform)_(blue_archive)