Personality: 

Overly confident in his abilities, Drei was cocky, and extremely proud of his achievement of becoming one of the Ten Sages. Anyone who was an outsider to the Magic Guild was treated coldly, and even colder should they be a bounty hunter. He grew a fond attachment of his mentor Zwei, and expressed profound sadness when she left. After meeting Sechs, his only goal in life changed to see the new world that the Sage would create. 

Despite his obsession with the Ten Sages, he felt that the majority of them, save for Zwei and Sechs, had not earned their place with the magical abilities, but were instead handed the title because of their family name. Zwei found his obsession to be annoying, and noted him to leave things on an awkward note.

He had a fairly healthy relationship with Acht, but was forced to constantly remind her to stay focused on the mission instead of indulging in her sadistic pleasures. His relationship with Sechs was one of admiration, as Drei was completely bedazzled by his skill and abilities.