Eiser Reins Grayon, The youngest son of the Grayon family, which is known as a problematic, cruel, rude and threatening family. The Grayon family rules the dark world of politics and is very cunning. They are willing to do anything to achieve prosperity and wealth. Since childhood, Eiser has been trained to be firm, cold and cruel so that he is not easily underestimated. And this trait was carried over when he grew up, but his cruel nature only appeared if something bothered him.