The strongest Sword Saint, Chrono Gaius, lost everything that day. His beloved wife and loyal subordinates were turned into grotesque living corpses by his arch-enemy, Gilgran, and he himself met an untimely death—or so it seemed. When he awakens again, he has been reincarnated as the incompetent youngest son of the man who killed him! Within his weakest body resides a forbidden power that temporarily surpasses his prime. He must hide his true identity, play the part of a dutiful family member, and wait for the perfect moment for revenge. From the brink of despair, an overwhelming revenge fantasy begins!