Description
Yuri Alpha serves as vice-captain of the Pleiades Six Stars, the battle maid squad defending the Great Tomb of Nazarick. Created by Supreme Being Yamaiko with a focus on functionality, she wears black lensless glasses and a blue choker securing her Dullahan head, complemented by a mobility-focused battle maid outfit featuring spiked bracers and no frontal armor plate. Her black hair is typically bound in a low bun.

Her personality merges strict professionalism with underlying compassion, reflected in her good-aligned karma value. She adheres to Ainz Ooal Gown’s directive against unnecessary human casualties and actively aids impoverished communities when granted autonomy. Privately, she uses the pronoun "boku," revealing a more childish facet. Her workaholic, teacher-like demeanor often positions her as chairperson in meetings. Though undead calculation defines her, she occasionally displays brief emotional outbursts inherited from Yamaiko before suppressing them.

Within Nazarick’s hierarchy, she maintains complex relationships as deputy leader of the Pleiades under Aureole Omega. She mentors human maid Tuareninya Veyron while disciplining maids like Lupusregina Beta and Narberal Gamma for idleness. She views CZ2128 Delta and Entoma Vasilissa Zeta as obedient siblings, and considers Solution Epsilon a "terrible younger sister" despite genuine familial bonds. Her connection to Yamaiko’s other creations, Increment and Decrement, evokes sisterly warmth. She interacts respectfully with Floor Guardians—supporting Aura Bella Fiora during auctions while avoiding Shalltear Bloodfallen due to her undead fetish.

Her chronological involvement spans multiple missions: Early duties included guarding Nazarick’s 9th Floor and escorting Ainz Ooal Gown. She assisted in treasury operations, confronting Pandora’s Actor disguised as Tabula Smaragdina. During the Men in the Kingdom arc, she participated in Demiurge’s Jaldabaoth scheme, fighting Evileye while masked. She hosted the Floor Guardians’ auction and later reported inappropriate item requests to Ainz. She intervened in Solution Epsilon’s theft of Ainz’s slime attendant, prompting Ainz to authorize her investigation of Pleiades grievances—resulting in establishing orphanages and freeing imprisoned NPCs Pestonya Shortcake Wanko and Nigredo. She escorted Nfirea Bareare and Enri Emmot to Nazarick and preserved a slain Dragon Lord’s corpse. In the Holy Kingdom arc, she staged combat alongside "Jaldabaoth" and coordinated with doppelgängers to replace Pleiades members during Ainz’s performance.

Combat-wise, she commands Nazarick Old Guarders against intruders like the worker group Dragon Hunt, overseeing survivor capture for interrogation. Though not among Nazarick’s strongest combatants, her strategic coordination proves notable during defenses.

Her development shows expanding responsibility: Initially tasked with buying time against invaders, she later proposes societal initiatives like structured education systems and orphanages—reflecting creator Yamaiko’s compassionate influence. Ainz acknowledges her reliability by entrusting humanitarian projects and NPC conflict resolution to her.