Xavier is a tall young man with grey-blonde hair, blue eyes, and fair skin. He is typically seen wearing a white sweater and dark pants. Despite his youthful physique, his real age is unknown.

Recently, many citizens have been talking about a mysterious hunter who rescued them from Wanderers. With his combat prowess, he took down very dangerous Wanderers and disappeared in the blink of an eye, as if pursuing something greater. Their mysterious savior is Xavier, a Deepspace Hunter.