Elaine is the daughter of Edmond Auclair, the CEO of the Quincy Company and a descendent of the Marquis Auclair. She grew up in Oración and made strong childhood friendships with the son of a businessman, Rene Kincaid and orphan Van Arkride. The three were fast friends with Elaine introducing Van to sweets, something that would become his lifelong passion. Rene, as the eldest, looked out for the other two. Van was then adopted and Elaine suspected her father, who had never approved of Van, had had a hand in Van's disappearance and subsequent trauma that would haunt him for the majority of his early life.

A slice-of-life Twitter manga spinoff of the Trails series's "Kuro no Kiseki" arc featuring the daily life of 16-year-old high school girl and arc heroine Agnes Claudel, and her days as an assistant to the 24-year-old Spriggan and arc protagonist Van Arkride, released on Dentsuma.

Elaine Auclair