The God of Slaughter System

Kael Kane guards the Obsidian Bloodblade. After a dispute over its ownership with academy head Rowena Shaw, his studies are obstructed, and he leaves to train. He obtains a growth opportunity, excels, and joins the Spirit Ice Squad. He battles monsters, uncovers a secret organization's conspiracy, protects the city, becomes a human race leader, resisting the Abyssal invasion and protecting all life.