2570 years ago, the world trembled beneath his feet. The Heavenly Demon, a ruler feared and worshiped in equal measure, stood at the peak of power—until his most trusted subordinates betrayed him. Trapped in a coffin and buried in an unmarked cave, he was left to rot for eternity. But fate had other plans. In the present day, a drunken university student, Min Jae, crashes his car into the forgotten cave, shattering the seals of the coffin. When the Heavenly Demon awakens, he finds himself in a world of steel and glass, far from the battlefields he once ruled. But Min Jae is dead. And with nowhere else to go, the Heavenly Demon seizes his broken body, taking over his life. However, this modern world is not so different from the past. The traitors’ bloodlines have flourished, their descendants now powerful chaebols controlling the world through wealth and deception. Just as before, they sit on their thrones of lies, unaware that the ruler they once betrayed has returned. Armed with ancient demonic power and a mind sharper than ever, the Heavenly Demon of the 21st Century embarks on a ruthless path of vengeance. The corporate world will be his battlefield. The traitors’ empires will crumble. And the world will once again bow before him. Because power never dies. It only waits.