Within the Angelique franchise, Ernst's character remains minimally documented. His sole appearance occurs in an OVA event where he assists Limoges and Charlie in closing a wormhole. This incident represents his only known involvement. Official media, including *Angelique: Shiroi Tsubasa no Memoir*, does not address his background, development, relationships, personality, origins, or narrative role across any seasons, movies, OVAs, or spin-offs.