Magical Warfare

Takeshi Nanase is an ordinary high school student with a dark past. People around him describe him as follows: to put it kindly, he follows the rules; to put it bluntly, he's stiff and gloomy.

For some reason, he and his childhood friend Kurumi Isoshima pretend to be a couple. Apart from that, he leads an utterly unremarkable life.

One day, before club practice, Takeshi finds a girl named Riku Aiba collapsed in the school building and takes her to the infirmary. Due to a misunderstanding, Riku turns him into a mage, and from then on, the fate of Takeshi and those around him begins to change...

"I'm a mage. I'm sorry... I made you become one, too."