Wolfgang von Kraftman is a dog beastman with a humanoid body, a canine head, gray fur, and a tail. He typically wears long pants, boots, and bandages on his hands and feet. Initially tough, prideful, and somewhat of a scoundrel, his personality changed drastically after an encounter in an alley where he and his sister Misha tried to sell the wrestler Genzo Shibata into slavery. Instead, Genzo, an animal lover, was captivated by Wolfgang’s appearance. He subdued Wolfgang and petted him extensively, rubbing his stomach and treating him like a pet, leaving Wolfgang deeply traumatized and resentful.

Seeking revenge, Wolfgang repeatedly targeted Genzo, once by kidnapping his dog, Hiroyuki. These attempts ended in failure and further humiliation, such as when he was thwarted by Jeeg, a giant ant in Genzo’s employ. The accumulated trauma led Wolfgang to develop agoraphobia, causing him to lock himself indoors for fear of another encounter. Although he once succeeded in stealing and selling Hiroyuki, this victory resulted in severe punishment from Genzo.

Beneath his fearful exterior, Wolfgang harbors a sensitive side and a soft spot for cute animals. During the attempted kidnapping of Hiroyuki, he became so distracted by the dog’s cuteness that it delayed his escape and led to his capture. He maintains a close relationship with his sister Misha and often works alongside her, though he frequently expresses reluctance toward her revenge plans due to his own lingering fear.