Spin-off of Accel World included on the anime Blu-ray/DVDs.

Short episodes included with the Blu-ray/DVD volumes.

Two years ago, the world was saved by Dan Bashin and the other light bearers of the cores. Having once risked his life in Grand Rolo's strife, Dan no longer finds passion in the mundanity of everyday card battles. When Dan desires to clash against stronger opponents, he is approached by Mai Shinomiya. She offers to bring him to the future, the stage of a new conflict where Dan's strength is needed. The two arrive in the year 2650, where civilization has been ravaged by the struggle for power between mankind and an otherworldly race known as Mazoku. As humanity begins to crumble under the dominance of the Mazoku, the hardened light bearers are destined to cross paths once more. Armed with new cards from the future, Dan and the other warriors must yet again bear the fate of humanity on their shoulders.

Written by Kinoko Nasu, these specials are included in the BD box sets I & II. Join Irisviel as she helps Disciple No. Zero understand more details and history relating to the Holy Grail War.