Toaru Majutsu no Index VS Durarara!! Special Collaboration

Toaru Majutsu no Index VS Durarara!! (とある魔術の 禁書目録 (インデックス)  VS デュラララ!!) is two crossover short story that written by Durarara!! author Narita Ryohgo and Toaru Majutsu no Index author Kamachi Kazuma and featured in Dengeki Bunko Official Bootleg Book Dengeki VS.

Publisher's Summary
10 Year Anniversary Commemoration: "Confrontation" Work

Toaru Majutsu no Index VS Durarara!! Kamachi Kazuma X Narita Ryohgo

This is a story of distortion.

A story of twisted distortion.

They were never supposed to intersect.

The world where magic and science stride and the fate of the world is hung over the ridge of a sharpened blade.

The world where the fairy strides through the city and immortals and vampires quietly mingle with the people.

Two people who are not supposed to meet...do so. Worlds that are not supposed to meet mutually encounter each other, connect, mingle―――and then clash!?

With various factors becoming intertwined, the [urban legend] called [The Mystery of the Underground Tunnel] was born in Academy City and Ikebukuro.

Now that the two are connected based on the same urban legend, an unprecedented opportunity to visit each other's worlds has arrived―――Nobody knows what will happen.

The world that opened, the time that closed.

Whatever they encounter and whatever clash occurs, will their hearts get distorted by the trickery? Or will the distortion get corrected?―――Not even the concerned parties have the answer to that.

Kamijou Touma and Celty Sturluson. With both of them embracing their lack of memories, will they get dragged into any kind of distortion in their respective worlds?

As long as the answer leads to peace, there's no choice but to jump in.

With two worlds created, they head towards the never-ending distortion―――.

Introduction by Narita Ryohgo

Academy City Chapter
'''Toaru Majutsu no Index VS Durarara!! Academy City Chapter by Kamachi Kazuma'''

When the two's fists cross, the story begins.

What is the identity of the threat that attacks Academy City!?

Starring:

"Imagine Breaker" Kamijou Touma

"Ikebukuro's Strongest Man" Heiwajima Shizuo

Ikebukuro Chapter
'''Toaru Majutsu no Index VS Durarara!! Ikebukuro Chapter by Narita Ryohgo'''

The conspiracy of Izaya who wriggles in the darkness.

The Accelerator that landed in Ikebukuro.

This is a story of distorted space-time.

Starring:

Orihaya Izaya: Well, just like with Shizu-chan it doesn't seem to be all there is this time.

Accelerator: So what? Who are you and where did you come from?