File:Klein Millennium Twilight character design.png

Source: Dengeki Online: http://dengekionline.com/elem/000/001/473/1473147/. Screenshot taken from Gematsu. Link: https://gematsu.com/gallery/albums/accel-world-vs-sword-art-online/february-23-2017/Accel-World-VS-Sword-Art-Online_2017_02-23-17_033.jpg