Brigitte functions as the loyal fairy companion to Kakka Arthur within a team dedicated to rectifying historical distortions. She has blue hair and green eyes. Her duties involve delivering tactical support and aid during missions conducted by the Arthurs. A key ability allows her to detect Excalibur fragments, essential for pinpointing distortions and threats to historical integrity.

Personality assessments identify her as ENFP and Enneagram Type 8, indicating impulsiveness and a preference for immediate action over extended planning. She demonstrates fierce loyalty toward her assigned Arthur and teammates, adopting a protective stance and confronting perceived threats directly. Her behavioral patterns include instinct-driven decisions and the use of humor or sarcasm in social exchanges.

Within team operations, Brigitte works closely alongside Kakka Arthur. She accompanies him during an undercover investigation at a private girls' school, where he poses as a student. During this mission, she engages in surveillance with other fairies and Arthurs. She maintains vigilant observation while Kakka Arthur undergoes coercive modeling sessions, intervening only when circumstances escalate severely. This exemplifies her operational approach of supporting her Arthur while sustaining situational awareness during field engagements.