Chrono Gaius, the strongest sword saint, lost everything that day. His beloved wife and loyal subordinates were transformed into hideous living corpses by his arch-enemy, Gilgran, and he himself met a tragic end—or so he thought. When he next awoke, he had been reincarnated as the incompetent youngest son of the man who killed him! In this weakest body resides a forbidden power that temporarily surpasses his prime. Hide your true identity, play the role of a family member, and wait for your chance for revenge. An overwhelming revenge fantasy begins, as he crawls out of the depths of despair!