This Is the Wizard's Secret Weapon, Vol. 1 (light novel): The Dawn Swordsman

His strength is his greatest burden…and his greatest weapon!Rix, a master swordsman, is tired of bloody battlefields—so he fakes his own death to go into retirement! Seeking to turn over a new leaf, he enters a prestigious magic school despite having no magical aptitude whatsoever. Nonetheless, he’s ready to work hard alongside fellow scholarship student Shino, undeterred by her icy demeanor. Thanks to his skill with a blade, he over-whelms his peers, inadvertently steamrolling everything i...