Apocalypse: My Mana Is Infinite

The apocalypse had stolen everything: my family, my future, and left me with a useless F-rank [Fireball] skill. Even worse, my 'Focus' stat—the very source of magic—was completely blank. No numbers. Just a dash. I was a mage without mana, a hunter without a future. Or so I thought. But then, I cast Fireball once. Then twice. Ten times. A hundred. Five hundred. And I felt nothing. No exhaustion. No depletion. My blank Focus bar wasn't empty; it was infinite. Now, with endless mana at my fingertips, the lowest F-rank dungeon is a playground, not a death trap. Monsters fall in barrages of condensed fire, elite bosses crumble, and my skill proficiency skyrockets to impossible levels. The world thinks I'm an average F-rank hunter. They don't know my greatest strength is a system glitch that makes me unstoppable. But how long can a secret this powerful stay hidden when I'm tearing through dungeons like never before, aiming for the absolute peak?