REASON FOR JOINING PEERAGE

People complained a lot when he joined Grayfia's peerage, but he had a good reason. High Humans are a race bred for combat and war by the gods. It has the special ability my to absorb other bloodlines and improve on them further. When Vander became part Devil, he gained the perks of a Devil, but no weakness from it. Gaining access to Demonic Mana(Fusion or Demonic Power and Mana).