Wistoria: Wand and Sword Season 1 Episode 3

When strange enemies called the Celestial Hosts took over the world, five great mages banded together to defeat them and built a magical dome and tower to keep them captive. Since then, the five most powerful mages (Magia Wanders) of each generation have watched over the enemies from the top of this tower. Two childhood friends, Will Serfort and Elfaria, inspired by this story, promise each other that they will together reach the top of this Wizard's Tower. Years later, Elfaria becomes a Magia Wanderer on the back of her tremendous magical powers, but Will lacks even a shred of magic, causing him to be taunted by everyone at the academy. Despite this weakness, Will possesses a remarkable physique and sword skills, allowing him to defeat even the largest monsters. To fulfill his promise to Elfaria and reach the top of the tower, Will is now ready to take on the world on the back of his sword.