Alpha is an elf with long golden-blonde hair, blue eyes, and unblemished skin, radiating breathtaking beauty that echoes her ancestor, the legendary hero Olivier, and her aunt Beatrix. She favors dark attire: side-slit evening gowns with matching gloves, high heels, and a choker for formal settings, or simpler black dresses for discretion. During Shadow Garden missions, she dons an ebony slime bodysuit featuring gold accents, a chest cutout, and a black domino mask. Born afflicted by Demon Possession, she was kidnapped by thieves and confined in an abandoned village until Shadow rescued her. He cured her condition through experimental magic control, prompting her lifelong pledge of loyalty. This oath birthed Shadow Garden, founded on Shadow's fabricated narrative of battling the Cult of Diablos. As its inaugural member, she adopted the name Alpha, symbolizing her foundational role. She later identified and cured other Possessed individuals, shaping them into the core Seven Shadows. Under her stewardship, Shadow Garden grew from a grassroots group into a global military and economic force, though Shadow remained largely oblivious to its scale. Alpha embodies calm analysis as chief operating officer, issuing precise orders with unshakable composure during operations. She treats the Seven Shadows as family, extending deep empathy to fellow Possessed while ruthlessly eliminating threats to Shadow or the organization. Her loyalty borders on absolute dependence; Shadow's unexplained actions—like adopting the John Smith persona without informing her—triggered emotional collapse and despair, though she regained resolve after interpreting his coded reassurances. Despite her competence, she harbors persistent inferiority, convinced Shadow operates beyond her comprehension, driving relentless training. She occasionally displays subtle jealousy toward women close to Shadow, like Alexia Midgar, yet maintains confidence in their unique bond. In combat, Alpha ranks second only to Shadow within Shadow Garden. Her swordsmanship merges observational precision—dodging attacks via trajectory calculations—with lethal single-strike assassinations augmented by slime-weapon elongation. She wields immense magical reserves, surpassing even Shadow's childhood levels, specializing in compressing magic into piercing blows. Her rare purification ability cures Demon Possession. She mastered vampire techniques like Mistform, evading assaults by dispersing into gas to sense movements, though this state is vulnerable to dispersion and requires rematerialization for offense. Beyond battle, her intellect fuels Shadow Garden's investigations, corporate compartmentalization, and deductive interpretation of Shadow's unintentional guidance, occasionally clouded by personal bias. Her birthday falls on July 23 under the Leo sign. She exhibits unconventional quirks, generating discordant sounds when playing instruments and unintentionally designing clothes with animal motifs. Leadership challenges arose from Delta, who once contested her second-in-command position before submitting, and Zeta, who formed a covert faction against her. Cid owed her a meal after consuming both their portions during an Alexia-related incident, though he forgot the debt; Alpha annulled it after he wore a suit she gifted. In spin-offs, she lacks fashion sense, relying on companions like Gamma for advice on "cute" underwear.