Damien Carme, a fairy scholar, is dedicated to recovering pages of the Black Fairy Tome, a dangerous text authored by his ancestor, Crucia Albastora. He altered his surname to conceal this lineage and protect his family's secret. Physically, he possesses long brown hair, a short full beard, and blue eyes, typically attired in brown pants, a white shirt, and a long brown coat.

His background involves collaborating with Veronica Thorn, whom he dispatches to steal a Tome page at an auction. Damien instantly identifies a returned item as a forgery, showcasing his expertise. He operates alongside the elderly fairy scholar Cain Distarol, a friend of his father. During an attack on Cain's residence by Axel Laboo seeking the Tome, Damien rushes to verify its safety, inadvertently revealing its location to the thief. He later observes the theft from a rooftop with Veronica, remarking on the ease of luring their adversaries.

Questioned by Free Underbar and Marlya Noel about the Tome's origins and potential links to Veronica, Damien and Cain withhold information. He later partners with "Sweetie" Bitter Sweet upon learning of another Tome fragment, though Eajey Daven Thor intercepts it first. Following a confrontation where Eajey recognizes Damien's ancestry, Damien and Veronica retreat.

A pivotal shift occurs when Free and Marlya arrest Damien. At Dorothea headquarters, he reveals his true identity and objectives to director Nein Auler. Relocated for safety, he discloses critical intelligence: Marco Bellwood and Griff Mercer are descendants of fairy scholars from Ein, and Marco intends to resurrect the Divine Beast using collected Tome pages and a fairy-possessed organ. Damien allies with Dorothea, urging intervention with Prime Minister Golbarn Helwise, who orders Marco's arrest.

After the Divine Beast incident, Damien secures a position at the Ministry of Fairies. Devoid of supernatural abilities as a non-combatant, he navigates postwar conflicts solely through his scholarly knowledge.