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A Certain Scientific Accelerator

Toaru Kagaku no Accelerator
とある科学の一方通行
어떤 과학의 일방통행
Некий научный Акселератор
某科学的一方通行

Main Story

novel
Set in a city of not only scientifically advanced superhuman students, but in a world where magic is also real. Kamijyo Touma's right hand, the Imagine Breaker, will negate all magic, psychic, or divine powers, as well as his own luck. One day he finds a young girl hanging on his balcony railing. She turns out to be a nun from the Church of England, and her mind has been implanted with the Index Librorum Prohibitorum—all the magical texts the Church has removed from circulation.

(Source: Wikipedia)

*Note: Includes 16 prologues, 18 epilogues, and 6 extras.*

Alternative

manga
A project to develop new superpowers is underway in Academy City. That project will turn Accelerator into an ...?!

(Source: Batoto)