Abilities: Werewolf, Strength
Weapons: Magic, Iron rod
Wolf shows up pretty early in Blood Lad—Bell mentions him in episode 2 when talking about the Book of Human Resurrection being hidden in his territory. He gets his full introduction the next episode. He's a seasoned street fighter and an old friend-turned-rival of Staz, though their dynamic is complicated by the fact that Wolf knows he'll never quite match Staz's raw power, which doesn't stop him from constantly trying.
The thing driving most of Wolf's actions is actually pretty tragic: his parents abandoned him for not being a pure werewolf, which messed him up. His whole push to take over territory in the Lower Demon World and prove himself is really about getting his family to finally accept him—especially his father, the King of the Demon World Acropolis. When Wolf gets excited or worked up, he transforms partly, growing claws and a snout.
Personality-wise, he's got a short temper and can be rough around the edges, but there's a lot more depth than that suggests. He's genuinely ambitious and proud of his strength, but he's also surprisingly caring when it counts—you see it in how he looks out for Fuyumi and jumps in for his friends when things get dangerous. Fans often note the small crush he has on Fuyumi, even though he'll insist she's not his type, which is pretty typical Wolf behavior.
Content compiled by AnimeList.moe from publicly available sources.