Kaisel

Kaisel is a shadow Sung Jin-Woo obtained in the Demon Castle. Kaisel is the shadow of Kaisellin, a Drake/Wyvern that Demon King Baran used as a mount.

Kaisel used to be a mount that the Demon King Baran rode in battle. After Sung Jin-Woo's fight, he looks around and found that Iron already killed Kaisellin, dragging his corpse towards Sung Jin-Woo. After he was extracted, his grade was Knight, which concludes he was at least an A-Rank.