Mahou Sensou

Magical Warfare (魔法戦争, Mahō Sensō) is a Japanese light novel series written by Hisashi Suzuki and illustrated by Lunalia. Twelve volumes have been published by Media Factory since November 25, 2011 under their MF Bunko J label. A manga adaptation by You Ibuki started serialization in the manga magazine Monthly Comic Gene on April 15, 2013 and Kadokawa made the English digital volumes available on BookWalker on October 29, 2015. A 12-episode anime television series adaptation by Madhouse originally aired between January 9 and March 27, 2014.

Plot
Nanase Takeshi is a normal high-school student with a slightly traumatic past. He's hard-working but in reality, he really cares about what others think about him. One day, however, he sees a girl wearing a uniform he had never seen before, who had collapsed on his school grounds. She is Aiba Mui and her appearance marks the beginning to a series of weird incidents. She once said, "to be honest, I'm a magic user and sorry......I turned you into one too."