The Academy's Genius Regressor is The Angel of Death

**"If the gods wrote my fate, then they were terrible authors."** Rian was the strongest dark mage of his time, but even that wasn't enough. When the demon invasion began, he watched his kingdom fall, his comrades die, and humanity collapse into ruin. No matter how powerful he became, he couldn't change the ending. Then he wakes up in the past. With a second chance, Rian is determined to rewrite history. He won't repeat the mistakes that led to humanity's defeat. This time, he'll follow a path no one has ever managed to walk before. Along with his unmatched talent for dark magic, Rian decides to learn holy magic—the complete opposite of everything he once stood for. The two powers were never meant to exist in the same person, and everyone believes it's impossible. But if becoming the impossible is what it takes to save humanity, then that's exactly what Rian will do.