Nozel is a proud and arrogant individual who believes in the superiority of his family, often looking down on others, including commoners. Despite his cold and distant demeanor, he deeply cares for those close to him, particularly his siblings, and shows a strong sense of duty and loyalty, as evidenced by his desire to avenge Fuegoleon. Though he struggles to express his emotions, Nozel has moments of vulnerability, especially when it comes to his fear of losing his sister Noelle, for whom he eventually apologizes after recognizing her growth.