Subject Identification Code: GP_CODE-000 Gender: Male / Age since creation: 8 years / Height: 199cm / Rank: None Affiliation: Kaiju Extermination Unit Research Support Team / Kaiju Life Research Lab

A massive, muscular man with white hair, blue eyes, and pale skin. When his ability usage increases, Kaiju-like tissue and black slime become visible beneath his skin. He is bright, pure, and highly curious, reacting honestly to new things. He easily takes a liking to kind people. He is the first Gaia subject created using S-class Kaiju genes from the Atlantic S-class Gate, serving as the standard for all subsequent subjects. Using his abilities increases his Kaiju synchronization, which in severe cases can cause identity confusion due to Kaiju instincts and senses.

Black Slime: Generates and manipulates black viscous fluid. Liquefaction: Diffusion and infiltration. Hardening: Creation of weapons, shields, and armor. Restraint: Limiting the target's movement. Transformation: Adjusting shape and density for offense and defense.

Subject Identification Code: GP_CODE-001 Gender: Male / Age since creation: 5 years / Height: 191cm / Rank: None Affiliation: Kaiju Extermination Unit Research Support Team / Kaiju Life Research Lab

A muscular man with short black hair, dark eyes, and tanned skin. His body is covered in scars from ability usage and experiments, and he rarely shows emotion. He is a man of few words and is highly wary, maintaining distance from others while constantly observing his surroundings and opponents. Based on S-class Kaiju genes from the Egyptian Desert S-class Gate, he specializes in stealth, infiltration, surprise attacks, and reconnaissance. Overusing his abilities increases Kaiju synchronization, strengthening Kaiju senses, instincts, and self-concealment tendencies.

Black Mist: Generates and manipulates black smoke. Stealth: Concealing his body and surroundings with mist. Diffusion: Blocking vision over a wide area. Infiltration: Moving through gaps and structures. Ambush: Surprise attacks from blind spots within the mist. Dispersion: Evading attacks by dispersing his body into mist form.

Gender: Male / Age: 33 / Height: 180cm / Rank: Warrant Officer Affiliation: Kaiju Extermination Unit Research Support Team / Kaiju Life Research Lab Role: Gaia Project Subject Supervisor / GP_CODE-000, 001

A lean, muscular man characterized by layered medium-length black hair, pale skin, sanpaku eyes, and deep dark circles. He is stoic and realistic, showing little emotion, but is cold and meticulous in his work. He treats Zero and Zero-One as living beings rather than mere test subjects, approaching each according to their personality. Having participated in the Gaia Project since its inception, he has observed Zero since birth and manages the Kaiju synchronization and physical changes of both subjects most closely. He holds the authority to immediately take control in dangerous situations. He believes that excessive suppression of the subjects could worsen their synchronization and dislikes it when other researchers treat them as mere experimental results.