Kokushibo's reign as the first Upper Moon demon ends in darkness, but death is not his finale. Reborn as Crimson within a new family, he carries unwanted memories of centuries past. Haunted by guilt yet numb to his surroundings, Crimson accepts his existence as inevitable—until familial bonds unexpectedly pierce through his emotional walls. The weight of his former identity clashes with the fragile warmth of his second chance. Now caught between honoring his tragic history and breaking free from its chains, Crimson faces an agonizing choice: surrender to the sins of his past, or claim redemption through his reincarnation.