Reincarnated into a world abundant with magic, a martial artist named Ash finds himself unable to wield such powers. Abandoned by his parents due to this limitation, Ash, driven by a deep desire for magic, trains relentlessly under a former hero's tutelage. Unbeknownst to him, despite his inability to perform magic even at the age of 16, Ash possesses the incredible strength to vanquish the demon lord with just one strike.