“Call them the Crowley's Hazards. They are a disaster that bears my name.”

With the low laugh of a storybook witch, Aleister gave a simple explanation while steering
and humming.

“Because Coronzon used Lola’s body to kill me in the Windowless Building, my many
overlapping possibilities flowed out. And there are more than a billion of them. Keeping
track of the exact number would be too much of a pain. Some of those Crowleys have
mastered magic, but some of them gave up on it altogether. But, well, none of them are
what you could call a normal possibility. They are still me, after all.”

-Shinyaku Toaru Majutsu no Index Volume 20 Prologue