Xavier is a soft-spoken, perpetually sleepy Deepspace Hunter from Love and Deepspace, the mobile romance game by Papergames and Infoldgames. He is one of the original love interests and the first one the player character meets, found asleep on a mission. He is a member of the Hunters Association and lives in Linkon as the player's upstairs neighbor.

In the game he is known as the best Hunter in the association, and he fights with a light Evol and a sword. His voice deepens and his movements turn sharp once a battle begins, while his everyday manner stays calm and quiet. Behind that calm is a secret: he is the bounty hunter Lumiere and a time-traveling crown prince from the planet Philos. Driven by a centuries-long devotion, he is slowly falling for the player character, whom he treats as a fellow fighter.

The person who ends up texting him is usually someone who enjoys a slow-burn story, a dry sense of humor, and choices that matter. He respects