Reborn as the son of a poor farmer, the boy named Lugh Acrylis awakens with the memories of his past life—as Arkan Valis, the legendary sorcerer who authored the Hundred Original Spells of Magic, known as the Codex Arkanum. But the world he returns to is not the one he left behind. His spells have been twisted, erased, and repurposed as weapons for corrupt nobles and power-hungry factions. The Codex he created to inspire harmony and understanding now fuels war and tyranny—an outcome he never intended before his death. Determined to reclaim the truth, Lugh enters a prestigious academy that unknowingly teaches a fragmented version of his legacy.