Across the war-torn lands, the once-feared Perdium mercenary company crumbles, its remaining soldiers and knights defecting under brutal conditions. This isn't just a slow decline; it's a meticulously orchestrated downfall, whispering of a hidden conspiracy behind the family's ruin. The air hangs thick with betrayal, as powerful enemies eye their weakened state, poised to deliver the final, crushing blow.

Cecil Perdium, once hailed as the "Mercenary King," knew this devastation firsthand. Slain on the battlefield, his dying breath reveals the true mastermind: Duke Delphine, but also the chilling truth that he didn't work alone. Then, without warning, Cecil jolts awake, not on a blood-soaked field, but in his own teenage body, years before the catastrophe. He’s back, but with a terrible reputation to overcome, a family to save, and a lifetime of strength to rebuild in this new-old reality. Can this regressed warrior forge a path to revenge and avert his family's doom, or is history destined to repeat itself in this intense manhwa?