The deer is a large buck with brown and white fur, black eyes, and large antlers on his head.
Although technically a wild animal, the deer seems quite tame and unafraid of humans. He is also rather curious, as he often follows Free around and watches over him when he's practicing in his stadium.
The deer occasionally watches Free and visits him as he practices at his favorite stadium, tilting his head to question what he is doing. The deer is also seen leading Valt Aoi to Free De La Hoya when he is searching for him before his leaving of BC Sol. Later on, in Beyblade Burst Turbo, Aiger trips and stumbles across him.