text: Secondary characters Osamu Wakabayashi : A friend and admirer of Yohko, he gets used by the demons in the first OVA in an attempt to prevent her from becoming a Devil Hunter.
  Haruka Mano (真野 ハルカ Mano Haruka) : The first Devil Hunter from the Mano Family. She is very skilled as a Devil Hunter and is able to fend and defeat any demon, even the most powerful of all demons, Yujiro Tasugaru. In several artworks, she is portrayed with a white Devil Hunter outfit with pink hair. In the anime however, she wears a red Devil Hunter outfit and has light green hair.
  Yujiro Tasugaru : The strongest of all demons, Yujiro is one of the first formidable demons and enemy of the Mano Family, being an oni-looking humanoid muscle demon and wearing a monster face on his back. Yujiro is very powerful and has the ability to manipulate time and space. He was responsible for allowing demons to enter the human world and almost brought the world to the brink of hell, until the first Devil Hunter, Haruka Mano, defeated and sealed him. Every generation, Yujiro manages to free himself, only to be beaten and sealed again by that generation's Devil Hunter. Not only is he extremely powerful, he is extremely clever and cunning.