Eiyuu Kyoushitsu no Chouetsu Majutsushi: Gendai Majutsu wo Kimeshisha, Tenseishi Tenshi wo Shitagaeru

Calgrande is a magical academy that the nobles and elite magicians attend. A world of magical fundamentalism, where the strongest talents for the national military gather. Yuuma, a genius magician who once before saved another world, died and reincarnated to this world, is now attending this academy