Tsue to Tsurugi no Wistoria Episode 12

A hard-working boy named Will enters a magic academy in hopes of becoming a great sorcerer. Unfortunately, there's a fatal flaw in his plan: he lacks the ability to use magic. Amid the cold stares of his classmates and instructors, Will feels discouraged at times, but he presses forward with unwavering determination. He can't use a wand, but he can wield a sword in his battle to reach the top of a magic-dominated world. He just needs to believe in his own unique strengths and remember the promise he made with someone precious to him...

(Source: Crunchyroll)