Elaine, a fairy entrusted as the Holy Maiden of the Fountain of Youth, guarded the sacred waters in the Fairy Forest for centuries following the disappearance of her brother, Harlequin, the Fairy King. Tasked with repelling humans seeking immortality, she developed a deep-seated wariness of outsiders—until her encounter with Ban, a bandit determined to steal the fountain’s power. Their clashes gradually softened into mutual respect and affection, ultimately driving Elaine to sacrifice her life during a demon assault by transferring the fountain’s immortality to Ban through a fatal kiss.

Resurrected by the demon Melascula, Elaine returned corrupted, her once-gentle spirit twisted into hostility and obsessive fixation on those close to Ban. This dark iteration was undone through Ban and Jericho’s intervention, reviving her inherent kindness. Her appearance shifts between a youthful guise—short blonde hair, petite frame—and a mature, winged form when channeling magic. Post-resurrection, her attire evolved from a flowing white gown to garments woven from leaves.

Elaine and Ban’s bond deepened into marriage, culminating in the birth of their son, Lancelot—an unprecedented event in fairy history, met with curiosity and optimism. Though she appears childlike, Elaine’s true age spans millennia, typical of her race. A brief antagonistic phase during her corruption saw her targeting Ban’s allies, but her restoration reaffirmed her compassionate nature.

Notably vulnerable to alcohol, she quickly succumbs to intoxication, a quirk documented in supplementary tales. Her journey encompasses multiple resurrections and trials, testing her resilience and underscoring her unyielding connection to Ban. In their final reunion, Ban surrendered his immortality to revive her, anchoring their family’s future. Elaine’s narrative bridges the fairy and human worlds, intertwining her sacred duties with profound personal bonds.