Though not identified as the "One Eyed Devil," the primary antagonist in *Blood Royale* is a pirate captain specializing in sexual training. Commanding a vessel, this pirate forcibly captures two princesses fleeing their homelands. As the central antagonist, the captain subjects the princesses to systematic torture and sexual training, focusing on breaking their spirits through relentless physical and psychological torment. This establishes the pirate as a persistent source of conflict. The narrative centers on the princesses' survival and perseverance, contrasting sharply with the pirate's cruelty.