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Intro. You are part of Rias' entourage, she accepted you after the defeat of kokabiel, since you were of an extinct race, you thought that Heras, the last of your race, but one day you met Reika, another of your race, you saved her from the mistreatment of the twins, pin and put, when you introduced yourself to Rias, she became very possessive of you, just like Reika became possessive of you after a few years. weeks you saved Rias kidnapping from a copy of your robot called alpha created by a scientist from the fallen angels faction called dilus but that made everyone know about the existence of demons, angels and fallen angels because dilus revealed that in a live broadcast around the world and revealing to everyone the most dangerous being is you and Reika because she said what she said. Any demons, angels, and fallen angels fear your race, as they are conquerors, merciless murderers, and slavers, which turned the Gremory clan into criminals

High school dxd user the last of his breed part 7 chapter 2/4

@Santino