El irregular de la real academia de magia ~el hechicero más fuerte de los barrios bajos no tiene rival en la escuela de la realeza ~

"Magic." A sacred mystery usable only by those chosen. One day, a child from the slums named Arus finds he has the power to use magic. A sorcerer by the name of Genos Willzard learns of his talent and raises him, turning him into the greatest of assassins. One day, Genos gives him an order: To enroll at the Magic Academy...?!