File:Kirito Millennium Twilight character design.png

Source: Dengeki Online: http://dengekionline.com/elem/000/001/426/1426544/. Screenshot taken from Gemastu. Link: https://gematsu.com/gallery/albums/accel-world-vs-sword-art-online/decmber-15-2016/Accel-World-VS-Sword-Art-Online-Millennium-Twilight_2016_12-15-16_007.jpg