Concerned for England’s future, the second princess of the British royal family, Carissa, launches a coup d'état! The first obstacle on her road to power—her younger sister, Vilian. However, before she can put her plan into motion, Acqua of the Back, member of God’s Right Seat, stands in her way!!

Touma Kamijou just can't catch a break. He might live in Academy City, a place full of more super powered students than you can shake a stick at, but his only superpower is his supernatural lack of luck. He wants nothing more than to keep a low profile, but when a girl named Index comes into his life, it gets more complicated and dangerous than ever!

Item’s battle comes to a head as their hideout is raided, and the team reaches its breaking point. Disgusted with Mugino’s disregard for the other members’ lives, Hamazura finds the resolve to stand up to her. Mugino may be a Level Five, one of the strongest espers in Academy City, but she’ll see that even a powerless Level Zero like Hamazura can put up a fight when his back is against the wall!

Index and Touma are ordered by the Queen of England to investigate the Eurotunnel bombing incident. The perpetrators—an organization called “New Light”, whose plans promise to bring massive changes to Britain! Can Touma intercept them in time to stop their scheme before it gets out of hand?!

St. Peter's Cross is the greatest weapon of the Roman Orthodox Church, and Oriana plans to take control of Academy City by using its power. Can Touma, Stiyl, and Tsuchimikado figure out the secret behind its activation and thwart Oriana's scheme in time?

Touma has returned Orsola Aquinas to the Roman Orthodox Church--and it turns out to be a terrible mistake! Orsola's ability to read the Book of the Law is deemed a threat to Roman Orthodoxy, making her a prime target for execution. Can Touma, Index, and Stiyl save Orsola...and risk incurring the wrath of the world's largest Church?