Returned as the Duke

army/ies auras based on a web novel conquerors crown princes dragons dukes dungeons elf/ves emperors empires european ambience full color gods goddess/es godly powers kingdom building kingdoms knights mages magic male protagonist monsters nobility/aristocracy orcs past life/ves plays a big role protagonist strong from the start rebellion red-haired male lead red-haired protagonist regression reincarnated in the past religion revenge royalty saint/saintess slave traders slaves slavery soldiers special ability/ies sword and sorcery/magic swords swordsman time rewind transmigration wars