OVA
Description
Entoma Vasilissa Zeta, a heteromorphic arachnoid entity created by the Supreme Being Genjiro, serves as a combat maid in the Pleiades battle maid squad. She functions as a defensive unit for the Great Tomb of Nazarick, tasked with guarding designated floors and delaying intruders.

**Physical Characteristics**
Entoma typically adopts a humanoid guise resembling a young girl in traditional Japanese attire. She displays bright red eyes that neither blink nor move and mauve hair styled in twin chignons, concealing all skin except her face. This visible "face" is actually a mask-shaped insect, while her hair consists of rolled centipede-like organisms. Her true form manifests as an arachnoid spider-human hybrid possessing multiple eyes, sharp teeth, and insectoid appendages. Entoma disguises her natural grating voice, reminiscent of Cocytus, using a lip bug leech that steals vocal cords from victims. Following the loss of Arche Eeb Rile Furt's voice in battle, she later acquired and utilized Arche's voice.

**Behavioral Traits**
Entoma consumes humans, showing a preference for muscular male arms but eating any human when opportunities present themselves. When satiated, she ignores humans unless provoked. Without human prey, she substitutes her diet with "green biscuits" or insects from Black Capsules. She weaves webs across Nazarick's 3rd and 6th Floors to trap prey, valuing the thrill of the hunt over gluttony. Entoma harbors intense grudges against those damaging her attire or voice-disguising equipment, exemplified by her vendetta against Evileye for destroying her lip bug. She exhibits fierce loyalty to Nazarick and profound reverence for the Supreme Beings. Insults directed at her creator or her role as a maid provoke uncontrollable rage, as demonstrated when Evileye questioned her purpose.

**Capabilities**
As an entomancer, Entoma manipulates insects for diverse combat applications. Offensively, she employs Bullet Bugs as projectiles, Blade Bugs as melee weapons, and the Thousand Lash Bug centipede whip. Defensively, she utilizes Hard Armor Bugs as shields. Utility insects include Lip Bugs for voice theft, Mask Bugs for disguise, Breath of Fly for exhaling swarms, and adjustable-density webbing. Her Elemental Talismans summon lightning birds, explosive blasts, wind blades, and giant spiders. Multiple eyes provide wide vision, while antennae detect air vibrations for heightened reflexes.

**Notable Chronology**
During early operations, Entoma evaluated Cocytus in the Lizardman campaign and participated in Pleiades tea parties, expressing envy when not receiving direct orders from Ainz Ooal Gown. While infiltrating the Kingdom, she consumed bodyguards during the raid on Hilma's mansion. She engaged the Blue Roses adventurers but was defeated by Evileye's insecticide magic, losing her original lip bug. In the Jaldabaoth Arc, she posed as a demon maid under Jaldabaoth, fought Narberal Gamma, and later received Ainz's permission to eliminate Evileye if encountered again. During the Worker Invasion, she sought to consume slain workers' arms but was prevented by Yuri Alpha; she later harvested Arche's vocal cords. Internally, she competed with CZ2128 Delta for "elder sister" status through cleaning tasks and Chaos Beast subjugations. Shalltear Bloodfallen advised her to incorporate long-range attacks and web-based tactics. She collaborated on hospitality duties, crafting customized chairs for Ainz to demonstrate maid roles. For maintenance, she assisted in post-Chaos Beast cleanup on the 6th Floor and relayed messages during Nazarick's reconstruction.

**Background and Relationships**
Created solely to stall invaders, Entoma is the second-youngest Pleiades sibling under Aureole Omega. She interacts with fellow maids through cooperative tasks and rivalries, such as her temporary conflicts with CZ2128 Delta. She reports directly to leaders Yuri Alpha and Sebas Tian.