Cain Distorol is an elderly fairy scholar residing in the town of Timoon. As an ordinary human, he possesses no inherent combat abilities or supernatural powers, but his extensive study of fairies makes him a figure of notable scholarly knowledge within the world of Fairy Gone. His advanced age is reflected in his appearance, with gray hair and a preference for formal suits, and he is often seen accompanied by a crane.

His background is tied to a long-standing friendship with the father of Damian Carme, a connection that has placed him within a network of individuals knowledgeable about rare fairy artifacts and lore. This relationship also links him directly to Damian Carme himself, with whom he shares a close association. Cain's role in the story is primarily defined by his acquisition of the Black Fairy Tome, a coveted artifact that draws dangerous attention from multiple factions.

When Free Underbar and Marlya Noel visit him to discuss fairies, their conversation is violently interrupted by an attack orchestrated by Axel Laboo, who uses a fairy to steal the tome directly from Cain’s residence. Although the tome is eventually recovered through the efforts of Dorothea members and others, the incident highlights the peril that comes with possessing such an object. Following the theft, Marlya and Free return to question Cain and Damian about the tome's origins. Cain firmly refuses to reveal how the artifact was obtained, demonstrating a secretive and guarded nature regarding this matter. When questioned further about a woman named Veronica Thorn, both Cain and Damian deny any knowledge of her, maintaining a consistent wall of silence. As a fairy scholar, his significance lies not in physical prowess but in his expertise and the mysterious history connected to the Black Fairy Tome.