The second season of Tsue to Tsurugi no Wistoria.

Will, a washout student at a magical academy who is unable to use magic, is aiming to join the top tier of mages, the Magia Vander, to fulfill a promise to his childhood friend, Elfaria. Wielding a sword instead of a wand, his abilities are slowly recognized within the academy. During the all-student praxis dungeon training he undertakes with Lihanna and the other top students of his year, they are ambushed by a mysterious mage. Though they barely manage to survive the attack together, they go on to face the exit exam. Can Will reach the girl waiting for him in the tower?

(Source: Wistoria: Wand and Sword Season 2 English Site)