kamijou touma, accelerator, index, misaka imouto, kanzaki kaori, and 9 more (toaru majutsu no index and 1 more) drawn by haimura_kiyotaka

Huh?

The sister that governs the grimoire index for the Anglican Church -- Index

A magician of the Russian Orthodox Church -- Sasha Croitsef

The strongest esper of the Academy City (Level 5) -- Accelerator

What, what do you mean, "why", says Misaka, says Misaka......!!

Sisters serial number 20001 -- Last Order