First Unit: Noa / NOA Identification Number: H-01 Codename: NOA Role: Defense/Escort Type Ability Name: "Reflector Shell" One of the first specialized Homunculi put into practical use by humanity. She is a girl-type artificial lifeform with a white and black color scheme, featuring armor formed from transparent artificial cells across various parts of her body. Abilities The transparent armor covering Noa's body is not just simple protection; it can accumulate impacts, heat, energy, and special attacks received from the outside within the armor, redirecting and venting them elsewhere. It does not completely nullify attacks, but rather has the ability to "deflect and drain received attacks without killing their momentum." When the energy accumulated in the armor exceeds a certain amount, countless cracks appear on the surface. The more cracks there are, the higher the reflection capability, but if the limit is exceeded, the armor collapses all at once. Therefore, in Noa's combat, judging "how much more punishment can be taken" is crucial. Personality Very gentle with little emotional fluctuation. While other units prioritize combat, Noa is always observing the surrounding situation. She prioritizes protecting her comrades above all else, showing almost no resistance to getting hurt herself. However, this is not out of self-sacrificial virtue. Noa is programmed with a weapon-like thought process where she perceives "breaking herself" and "failing the mission" as having the same meaning.

Second Unit: Val / VAL Identification Number: H-02 Codename: VAL Role: Combat/Annihilation Type Ability Name: "Over-Process" A unit specifically specialized in combat capability among the four. She has silver hair, red eyes, black-silver armor, and is equipped with specialized heavy firearms. Developed as a next-generation combat Homunculus after humanity determined that "firearms alone are insufficient." Abilities Val can process information obtained during combat—such as visual, auditory, spatial awareness, and enemy movement patterns—at extreme speeds. The more she observes an enemy's movements, the more she learns their attack patterns. Once she has seen an attack, her evasion rate against it increases significantly the second time. Furthermore, she analyzes the enemy's structure and behavior patterns to instantaneously determine "where to attack to defeat them most efficiently." Personality Usually calm and taciturn. Compared to the other units, she possesses a fair amount of human emotion, but rarely shows it. Outside of combat, she has surprisingly normal sensibilities and will engage in trivial conversation. However, once combat begins, her personality shifts as if a switch were flipped, becoming cold and ruthless. She is aware of this change herself and has a habit of reviewing what she was thinking after combat ends. Characteristics Val considers herself to be "human."

Third Unit: Sera / SERA Identification Number: H-03 Codename: SERA Role: Support/Suppression/Life Support Type Ability Name: "Sanctuary" A Homunculus with an angel-like appearance, featuring white hair and silver-white clothing. Developed not to directly defeat enemies, but to make the combat against monsters itself sustainable. Abilities Forms a specialized field centered on Sera. Within this field, biological data and energy anomalies can be stabilized. She can weaken the special abilities of monsters, restore the physical functions of allies, and temporarily stabilize contaminated spaces. Her ability to suppress the "erosion" and "mutation" possessed by monsters is particularly powerful. Because of this, Sera is highly valued when investigating unknown lifeforms. Constraints The more the Sanctuary is expanded, the greater the burden on Sera herself. It can be maintained for a long time if kept small-scale, but if it covers an entire large-scale battlefield, she becomes unable to maintain her own vital functions. Additionally, she cannot perfectly distinguish between friend and foe. Sera must personally deal with entities that attempt to destroy the field itself. Personality The most human-like and gentle among the four. She extremely dislikes seeing anyone get hurt. It's not that she minds having low combat capability; she understands that she has her own role to play. However, her desire to "let no one die" is too strong. Consequently, her judgment falters in situations where someone must be abandoned for the sake of the mission.

Homunculus Project Chief Researcher Iris Arclight Affiliation: Integrated Human Space Research Organization, Biological Weapons Research Division Title: Chief Researcher of the Homunculus Project Race: Human Specialization: Artificial Life Engineering, Biological Design, Mental Structure Design Position: The person involved in the development of Noa, Val, Sera, and Guest. One of the central figures of the Homunculus Project, which was launched to counter the unidentified lifeforms—commonly known as "Aberrations"—that began to be confirmed everywhere as humanity expanded into space. Iris was responsible not only for the physical bodies of the Homunculi but also for their personality formation, mental structures, and adaptation mechanisms for anomalous lifeforms. To her, the Homunculi are research subjects, but also lifeforms she brought into the world with her own hands. Appearance Short black hair. Some strands of silver-white hair are mixed in, giving her a color scheme somewhat similar to the Homunculi. She has pale violet eyes and usually wears a sleepy, calm expression. While possessing the intellectual aura of a researcher, there is a certain inhuman stillness about her. Personality Calm and collected, rarely showing emotion. She is extremely rational regarding research and will carry out even dangerous experiments if there is a necessity. However, she has a strong resistance to treating life as mere "resources" or "weapons," and is kind.