File:Yui Fatal Bullet character design.png

Source: Dengeki Online: http://dengekionline.com/elem/000/001/663/1663576/. Screenshot taken from Gematsu. Link: https://gematsu.com/gallery/albums/sword-art-online-fatal-bullet/january-19-2018/Sword-Art-Online-Fatal-Bullet_2018_01-19-18_010.jpg

Source for revision: https://fb.sao-game.jp/character/sao_fb.php