Cain Distarol is an elderly fairy scholar residing in Timoon, bound by a historical friendship to Damian Carme's father, signifying his deep-rooted ties to the Carme family. His profound expertise in fairy lore establishes him as a key knowledgeable figure.

Cain draws dangerous attention by acquiring the Black Fairy Tome, an artifact coveted by multiple factions. During a visit from Free Underbar, Marlya Noel, and "Sweetie" Bitter Sweet, their discussion turns toward fairies. This conversation is shattered by an assault orchestrated by Axel Laboo, who uses a fairy to steal the tome directly from Cain's residence, endangering Cain and his guests.

Following the theft, Marlya and Free return to question Cain and Damian Carme about the tome's origins. Both firmly refuse to reveal how they originally obtained it, maintaining a secretive stance regarding the artifact. When Marlya asks if they possess information concerning Veronica Thorn, Cain and Damian deny any knowledge or acquaintance with her.

Cain possesses no inherent combat abilities or supernatural powers. His significance lies solely in his scholarly knowledge of fairies and his brief possession of the Black Fairy Tome.