The Son of the Great Magician

A female mage appeared during the Third World War. Wielding her overwhelming magical power, she single-handedly brought the war to an end. After that, she spreads magic as a force throughout the world. People grew excited at this revealed power, and nations frantically began researching it. This marks the beginning of what would be called the Magic Revolution. The protagonist, Naine, is an abandoned child. He is taken in and raised by a certain woman. Having lived deep in the mountains with this woman for many years, Naine is told by her on his 15th birthday to attend a magic high school. This is the story of a boy raised in the mountains, unfamiliar with the world, seeking only strength, who undergoes various experiences at this academy and eventually saves the world. Honestly, I wrote this on a completely sudden whim. It's a total shot in the dark. I genuinely have no idea what will happen next. I think it's quite a template work, but I'd be grateful if you'd read it even just to pass the time.