Lucy Maud Montgomery emerged from an abusive orphanage, enduring harsh treatment marked by forced labor, inadequate clothing, and physical abuse that left a permanent scar on her right arm from a hot iron poker. Ostracized as a "freak" due to her supernatural ability, she developed deep-seated trauma.
Her appearance features pale skin, green eyes, and distinctive long crimson hair styled into two thick braids with choppy bangs, often accented by a white flower hairpiece. Possessing a short, slim build, she wears functional attire like an apron and headpiece while working as a waitress, or adopts disguises such as a straw hat and sunglasses for covert operations.
Initially presenting a haughty, rude demeanor as a defense mechanism masking insecurity, her time with the Guild reinforced a belief she was valued only for her ability, fostering a self-centered and mildly sadistic outlook. While lacking homicidal tendencies, she derives satisfaction from trapping individuals within her ability's dimension.
Her ability, *Anne of Abyssal Red*, generates an extradimensional space called "Anne's Room." This realm contains two doors: an unlocked Exit Door returning individuals to reality while erasing their memory of the room, and a locked Prison Door requiring a morphing key. Spectral hands immobilize unconscious captives within the prison, with escape deemed impossible unless Lucy terminates the ability. A monstrous entity named Anne enforces capture, exhibiting significant speed and strength without directly harming victims. Lucy manifests multiple Anne copies simultaneously.
Recruited by the Guild for her ability, she participated in operations against the Armed Detective Agency and Port Mafia, abducting Kenji Miyazawa and transporting entire buildings into her dimension. Confronted by Atsushi Nakajima, Junichirō Tanizaki, and Ougai Mori, her defeat came when Atsushi threatened permanent imprisonment within her own dimension. His unexpected kindness during their standoff, contrasting sharply with her Guild experiences, triggered a pivotal shift and caused her to question her loyalty.
She subsequently betrayed the Guild, aiding Atsushi's escape from the Moby Dick airship by providing him a means to nullify a destructive doll. This act led to her capture by the Guild. Following the Guild's dissolution, she worked as a waitress at an Armed Detective Agency-affiliated restaurant, intentionally interacting with Atsushi. Maintaining a tsundere attitude—such as discarding his report to provoke him—she nonetheless demonstrated genuine concern by rescuing him when endangered.
During the "Cannibalism" arc, she used her ability to protect Yukichi Fukuzawa at the Agency's request, respecting his autonomy by not preventing his voluntary departure from the protective zone.
Trivia notes identify her namesake as the Canadian author of *Anne of Green Gables*, drawing parallels between the character and the novel's red-haired orphan protagonist: both possess vivid imaginations and dramatic personalities. Her birthday is November 30, making her the sole Guild member based on a Canadian literary figure.