In the dying light of the battlefield, the Nitro Nexus Dragon's once-majestic form lay crumpled and defeated, his scales cracked and bloodied. The air, thick with the stench of destruction, seemed to mourn the fall of the great beast whose roar had once commanded the skies. As the dragon's fiery breath waned to a faint glow, his final thoughts were consumed by the looming figure of the Insect God—a deity whose treachery had led to this ruin. With his last ounce of strength, the dragon's essence spiraled into the void, a spark of rage and vengeance against the one who had orchestrated his downfall.

Reincarnated into the body of a young man, the Nitro Nexus Dragon's spirit now inhabited the form of a lowly F-class mage named Kaito Taiyashè, a far cry from his former grandeur. Kaito's new existence was fraught with insignificance, struggling with weak spells and scorn from more powerful mages. Yet within him, the dragon's ancient fury burned brighter than ever. With every heartbeat, he swore an oath of vengeance against the Insect God who had wronged him. In this new life, he would reclaim his power, not just to regain his lost glory but to enact a cataclysmic revenge upon the very deity that had doomed him.