Lucy Maud Montgomery, once a key operative within the Guild’s shadowy ranks, emerged from a brutal orphanage upbringing marked by frostbitten labor, violent punishments, and a scar seared into her right arm by a caretaker’s iron. Branded a “freak” for her anomalous power, she found fleeting refuge in the Guild, which weaponized her abilities while offering the belonging she desperately sought. Her power, *Anne of Abyssal Red*, conjures a dimensional pocket dubbed “Anne’s Room.” Within this realm, two doors govern fate: the Exit Door strips memories from departing individuals, while the Prison Door traps victims in comatose stasis until manually unlocked. A monstrous entity named Anne prowls the space, hunting targets with lethal precision. Though Lucy can pull multiple targets into the room when near them, time outside seemingly halts—a phenomenon inconsistently sustained. Weaknesses lie in her vulnerability outside the room and the intricate key manipulation required to open the Prison Door. Tasked by the Guild, Lucy spearheaded missions like abducting Kenji Miyazawa and Elise, Mori Ougai’s ward, to destabilize adversaries. Her clash with Atsushi Nakajima and Junichirou Tanazaki proved transformative: Atsushi’s shared orphanage trauma pierced her nihilism, sparking defiance. She later sabotaged the Guild by freeing him from their airship prison, risking retribution. After leaving the Guild, Lucy sought out a waitress role at a café near the Armed Detective Agency, intentionally staying close to Atsushi. Their relationship shifted from rivalry to alliance, epitomized when she rescued him from drowning. During the Cannibalism crisis, she preserved Yukichi Fukuzawa’s consciousness within her realm yet honored his choice to exit the protective stasis. Outwardly abrasive and sarcastic, Lucy masks profound fears of abandonment and self-loathing. A childhood of cruelty forged manipulative tendencies, often displayed through psychological torment in Anne’s Room. Yet Atsushi’s compassion ignited latent empathy, softening her edges. A quiet undercurrent of attachment simmers beneath their exchanges, fueled by his recognition of her fractured past. Visually, Lucy boasts pale complexion, vivid green eyes, and long crimson braids fastened by a white blossom. The scar on her arm and dental braces punctuate her appearance, while her wardrobe shifts between a café uniform and disguises like straw hats. Her narrative echoes Anne Shirley of *Anne of Green Gables*—shared red hair, orphaned roots, and a flair for imagination, with “Abyssal Red” mirroring Anne Shirley’s hair-color insecurities, recontextualized into supernatural metaphor.