Certhac walked as if nothing was going on inside him. He was a shapeshifter and pure blood at that. He could restructure his muscles to look like a different animal or a race.

He can also harden his flesh like steel and make it soft and stretchy like rubber. He was practically the last of his race.

More than 400 years ago his entire race refused to bow down to the demon king. This caused his entire clan to be ravaged and his family to fall unto slavery after being shackled by the demon king.

He and his entire went to suicide after the extreme treatment under the demon king. It was like being under the rule of a barbarian.