Yama Inu

One of the Shadow Beasts. An Enhancer. A gaunt man. He engages in battle with the Phantom Troupe's Uvogin in the wilderness. In the first anime adaptation, he transforms his jaw during attacks. He successfully attacks multiple times, exploiting openings, and uses poison to paralyze Uvogin's body. However, he is defeated and killed when Uvogin shoots through his face with a leech's skull.

Fangs (tentative name) Enhances his sharp, fang-like teeth to bite and tear enemies, an Enhancer ability. It possesses enough power to tear through Uvogin's steel-like body. Due to his fondness for torture, he laces his teeth with a fast-acting neurotoxin instead of a lethal poison, causing those bitten to lose control of their bodies in a short time.