I Surrendered My Sword for a New Life as a Mage: Volume 1

There was once a man who dedicated himself to mastering the sword. On the verge of death after vanquishing a legendary dragon, he had no regrets about how he’d spent his life... except a lingering wish to be able to use magic. So, as a reward for his victory, he is reincarnated as young Soma Neumond in a world of spellcraft and sorcery―only to be informed that he has no talent for sorcery and never will! He never gave up on his dream in his past life, however, and he isn’t about to this time either. Whatever it takes, he’s determined to find a way to become a mage!

[From J-Novel Club]