TV-Series
Description
CZ2128 Delta, also called CZ or Shizu, serves as an automaton battle maid within the Pleiades Six Stars squad of the Great Tomb of Nazarick. Created by the Supreme Being Garnet as a final defensive measure to delay intruders until guild members could prepare a last stand in the throne room, she possessed extensive knowledge of Nazarick's security systems. These memories were later altered by Ainz Ooal Gown to prevent potential information leaks.

Her distinctive appearance features a short stature, long straight red-gold hair, and an eyepatch covering her left eye, leaving only her visible right eye – emerald green with a target-mark pupil. She wears accessories with military camouflage patterns and a modified Pleiades maid uniform incorporating urban camouflage elements, complete with a "1 yen" sticker on her skirt and a white gun holstered at her waist.

Outwardly emotionless and silent, she speaks with a flat vocal tone and minimal expressiveness. Despite this, her high karma value (Neutral Good, 100) marks her as one of the few Pleiades considered non-threatening to humans. She harbors a strong dislike for cannibalism and displays a fondness for cute creatures or objects, often hugging them like dolls until ordered to stop. She places notoriously difficult-to-remove "1 yen" stickers on entities she likes, granting bearers preferential treatment within Nazarick.

In combat, this level 46 automaton utilizes Gunner, Sniper, Assassin, and Stalker classes. Her primary weapon is a silver magic assault rifle firing projectiles using magical energy. She also wields a legendary scarf granting temporary invisibility and evasion. Her physical attack stats rank highest among the Pleiades, and her mechanical body grants immunity to poison.

Her background includes key roles in Nazarick's history. During the Bloody Valkyrie Arc, she assisted Ainz and Albedo in navigating the Treasury, hesitating to attack Pandora's Actor disguised as Tabula Smaragdina, and later aided in relocating treasures to the Throne Room. In the Two Leaders Arc, she was seen holding the adored Éclair Éklair Éklare while navigating social interactions with idolizing Homunculus Maids.

She participated in Demiurge's schemes, posing as Jaldabaoth's subordinate "Beta Demon Maid" alongside Yuri Alpha during the Men in the Kingdom Arc, fighting Evileye before retreating under orders. Later, in the Paladin of the Holy Kingdom Arc, she infiltrated the Holy Kingdom as part of a mock battle against Ainz, disrupting spellcasting with her sniper abilities. Imprisoned after Ainz's staged defeat, she later partnered with Neia Baraja for a rescue mission in Kalinsha. This forged a close bond; CZ comforted Neia during distress and they collaborated to defeat a demon commander. Their success elevated both to hero status, and CZ continued supporting Neia's "Sorcerer King’s Rescue Team".

Her relationships include admiration for her creator Garnet, whom she calls "Doctor", and camaraderie with fellow Pleiades, though she expresses jealousy toward Narberal Gamma for her proximity to Ainz. She disputes "sibling" seniority with Entoma Vasilissa Zeta and enjoys interactions with Aura Bella Fiora's magical beasts. The Homunculus Maids revere her, often competing for her attention.

Ainz once tested his Control Amnesia spell on her without adverse effects. Her development culminated in forming Nazarick’s first genuine friendship outside the tomb with Neia Baraja, highlighting her capacity for loyalty and subtle emotional depth.