The Third World War has been ended by the efforts of Kamijou Touma. With that, he vanished. This is a world where Kamijou Touma does not exist. With the Magic Side regrouping, the Sabbath for their followers has arrived.

In the headquarters of the Science Side, Academy City's strongest Level 5 Esper Accelerator has washed his hands of the "Darkness." Along with Last Order and Misaka Worst, his days pass by peacefully with no sign of GROUP.

Hamazura Shiage has formed a new ITEM with Kinuhata, Takitsubo and Mugino. Peace has come to the hands of the alumni who have "graduated" from Academy's Dark Side at last... at least until a new evil "first year student" appears before them.

(Source: baka-tsuki)