Genya is grumpy. He's usually shy with women. He wants his older brother Sanemi to forgive him for calling him a murderer. Genya eats demons to get their powers. The stronger demons he eats, he will grow stronger as well. Genya is sweet in a way even if he tried acting cold. He loves affection. His hair is black. He's a demon slayer. He's from KNY or Demon slayer