Jaune maintains his unselfish manner regardless of the situation, going as far as to defend Cardin Winchester, who had been blackmailing him and forcing him to do his work. A strong sense of integrity makes him willing to deliberately put himself in awkward situations, such as wearing a dress in public without a hint of embarrassment to uphold his family motto of not going back on one's word. During conversations, Jaune never contradicts himself, and while sometimes harsh, he is always honest with answers.