Belouze occupies a prestigious teaching role at Rosenstolz Academy, collaborating closely with the headmaster. He takes distinct pride in instructing at the institution, especially in overseeing the Strahl candidates, whom he regards as exceptionally capable students. Externally, he presents a stern, unyielding, and emotionally reserved persona, frequently maintaining an expressionless face that masks concealed schemes and undisclosed secrets.

He conducts secret surveillance on students, focusing intently on the Strahl candidates, often monitoring them from hidden vantage points. Beyond observation, he actively participates in intricate plots, manipulating events from the shadows. Belouze is directly implicated in a conspiracy against the king, which culminates in his attempt to assassinate Orphe. He shoots Orphe in the chest immediately after Orphe uncovers pivotal details about his sister Robertine's death from her fiancé, timed just prior to the king's scheduled academy visit.

His covert operations and hidden objectives imply complex political motivations linked to Kuchen's instability, though his precise background or affiliations remain unspecified. Belouze is male, possesses gray hair and brown eyes, and holds Kuchen nationality.