A certain unlikely hero...
In Academy City, where superhuman abilities are scientific reality, Touma Kamijou is trying to reconstruct a life for himself, but that's easier said than done with a girl by his side with the arcane knowledge of 103,000 grimoires rattling around in her brain...
Now seemingly inextricably caught up in a world where magic is a reality, Kamijou learns that a certain shrine maiden is being held captive in one of Academy City's cram schools. Can Touma ally himself with a sorcerer who has on more than one occasion tried to do him in? The only thing he knows for...

Aiz is stronger than ever, but she has never been more restless. The blackrobed "client" who lured Lulune Louie into a dangerous job is roping in the Sword Princess with a quest she can't refuse. She knows full well how wary she should be, considering this person's last job ended in an adventurer's brutal murder, monsters attacking Rivira, and Aiz's battle with a distressing monster tamer who confronted her with a name no stranger should know.
But when she is offered clues that could lead to revealing her new enemy's identity, Aiz launches herself headfirst into the Dungeon--alone. Loki...

"First published in Japan in 2017 by Square Enix Co., Ltd."--Colophon.

October 18th. World War III has begun. As the flames of conflict between Academy City and Russia spread further, many other countries suddenly find themselves pulled into the fight. Fiamma, the only remaining active member of Gods Right Seat, attempts to control everything from the shadows while others run straight into the heart of the storm Kamijou will travel as far as necessary to revive the magically comatose Index Accelerator wont let even a war stop him from saving Last Order and Hamazura must find a way to heal Takitsubos stimulant-abused body. Though their goals are all different, it...