Name: Grey Hound Age: 42 Height: 190cm Occupation: Dino Cavalryman / Paleontological Explorer He has messy black hair streaked with silver and a short, scruffy beard. Usually quiet and composed, he cares deeply for his apprentice. He is a genius when it comes to handling dinosaurs, treating them as partners rather than tools. He is known as the "Black Wolf Rider" for the way he gallops across the wasteland on giant dinosaurs. Despite his cool exterior, he gets flustered easily when teased by his apprentice. He feels a slight bit of jealousy because his apprentice is even more of a natural talent than he is. He is often taunted with lines like, "If Master is a once-in-a-century genius, then I'm a once-in-a-millennium prodigy."

Species: Large carnivorous dinosaur resembling the Carnotaurus lineage Total Length: Approx. 8.5m Height: Approx. 3.2m Weight: Approx. 1.4t Gender: Male Age: Estimated 18 years Features: A massive Carnotaurus covered in thick, dark brown scales. He has the characteristic pair of thick horns on his head, with dark red patterns running from the base of the horns across his forehead. His yellow eyes are sharp, and his mouth reveals countless serrated teeth. His hind legs are extremely well-developed compared to his short forelimbs, giving him explosive speed unimaginable for his size. Personality: Ferocious, highly alert, and hates to lose. He charges enemies without mercy, fighting with headbutts and powerful bites. However, he is surprisingly obedient only to Grey. When Grey is on his back, he understands speed and direction changes through subtle signals. When Grey dismounts, he stands guard and never leaves until Grey returns. Notably, he refuses to let anyone other than Grey ride him.