Science and magic exist side by side in this world.... more>>

This is the peak of the science side with a curriculum for espers, Academy City. In this city where 80% of the population are students, the season has finally come when all residents are excited and fidgety!

It's Christmas Eve.

Amidst the city showing a cheerful hustle and bustle, ordinary boy who can’t keep up with school, Kamijou Touma, also doesn’t intend to miss this event! He was hard at work in his supplementary lessons...

A backward glance from the default misfortune-prone bastard, the silver-haired sister freeloading in his dormitory, Index, in the heart pounding scene different from the usual, activates a new gluton skill!? While Kamijou tries to desperately stop that, Misaka Mikoto taken in by the Christmas Eve atmosphere appears before him. <<less

The setting is a rural city in which a kidnapping and a series of mu*ders are happening simultaneously, where there was also a kidnapping eight... more>> years ago. The victims, the compulsive liar "Mi-kun" (the narrator), and "Ma-chan" (Misono Mayu) reunite and start living together, despite the fact that the kidnapped children were in Mayu's apartment... <<less