Louis had been born into the De Sade aristocracy alongside the likes of and , however he was assessed early on as a potential Curse-Bearer; thus Count de Sade sent him to live with permanently.
Noé comments that he often saw Louis staring off into the distance, appearing pained around Dominique, and avoiding Teacher.
Mina and her friends quickly befriended the three other vampires, and the group even found an abandoned cathedral in the woods that they made their secret base.