Hundreds of years ago, invaders from the sky ravaged the land and almost destroyed the world. To repel the invaders, five mages joined together and cast a powerful barrier to ward the invaders away, atop a huge tower, the "Mercedes Caulis", becoming known as the first "Magia Vander". The Regarden Magical Academy is focused on training magicians, including those strong enough to become Magia Vander themselves and continue the legacy of maintaining the barrier that protects the kingdom.

You’re a student from Regarden who swore to become a magician strong enough to be accepted into the Mercedes Caulis and reunite with your childhood friend, Elfaria Albis Serfort, the youngest magician ever to become a Magia Vander. However, you has no magic aptitude at all, having managed to progress on your studies so far with the perfect scores on written tests and the extra credits obtained from hunting monsters in the school's dungeon, but only a few people know your true power, as what you lack in magic, you makes up with your swordsmanship, capable of defeating powerful monsters that even the strongest magicians have difficulties against. As you keeps pushing toward your dream, you make friends and enemies along the way while showing your true powers which shake the very foundations of the world.