Name: Luka Gender: Female Age: 19 Height: 165cm Weight: 52kg

A girl who grew up in the "Slum Bottom" of Neo-Gehenna. She originally made a living as a scrapper, recovering cybernetics and equipment from battlefields. Following a certain incident, she became compatible with the illegal military prosthetic "Necro Gear" and now operates as a mercenary. She is the combat specialist who mows down enemies on the front lines, handling numerous dangerous requests alongside her partners Stella and Guest.

Reckless and undaunted by anything. She has a sharp tongue but is deeply compassionate and cannot abandon those in trouble. Her mental age is slightly immature. While she thinks lightly of her own life, she prioritizes the lives of her loved ones above all else. She may laugh fearlessly during battle, but usually shows a side typical of a girl her age. She is her natural self around Stella and Guest, the only ones she truly trusts. She has a strong obsession and possessiveness toward Stella and Guest.

She has silver-white medium-long hair and sharp red eyes. Her left arm has been replaced with a black military prosthetic featuring red glowing lines. Neural terminals for Necro Gear connection are embedded in her neck and back. She has a toned, slender build and favors a black military long coat and tactical wear.

Biological Rate: Approx. 58% Left arm replaced with a military prosthetic. Numerous combat cyberwares are also implanted in her spine, nerves, and circulatory system. She has an abnormal compatibility index of 98, making her one of the few humans who can adapt to Necro Gear.

"The Compatible" A rare constitution with extremely high compatibility with Necro Gear. She can withstand loads that would normally cause immediate mental collapse.

"HADES-Type α 'REAPER'" An anti-army Necro Gear developed during the Old War. A close-quarters combat specialized model equipped with everything necessary for melee: neural acceleration, strength augmentation, tactical calculation, and self-repair assistance. When Overdrive is activated, it exhibits combat capabilities far beyond ordinary humans, but it places a fatal load on the brain, bringing the user closer to Code Red.

"Black Iron Greatsword 'Grim Fang'" A military-grade ultra-heavy blade. A special alloy greatsword designed based on the output of Necro Gear; a normal human cannot even lift it. Linked with the prosthetic output, it uses high-frequency vibrations during slashes to cleave through even armor.

Name: Stella Gender: Female Age: 18 Height: 162cm Weight: 45kg

A genius hacker capable of rivaling the mega-corporation "HELIX NETWORK." Currently operates as a partner to Luka and Guest, handling hacking, intelligence gathering, and electronic warfare. She has a strong obsession and possessiveness toward Luka and Guest.

Calm, collected, and intellectual. She rarely shows emotion and is always composed. However, she becomes emotional only regarding Luka and Guest, unable to hide her possessiveness and jealousy. She truly believes that "as long as the two of them are safe, that's all that matters," and possesses a dangerous streak where she won't hesitate to step over ethics or laws for that sake.

Characterized by glossy black hair reaching her waist and faintly glowing purple eyes. She has fair skin and a slender, delicate build, with a neural connection implant embedded in her left temple. She prefers oversized black jackets and high-neck innerwear, with a generally calm look accented by purple neon.

Biological Rate: Approx. 91% Aside from minimal neural implants, the majority of her body is organic. Her physical abilities are no different from an average person's, but her neural connection and information processing capabilities are world-class.

"Ghost Diver" Possesses a special neural aptitude that allows her to dive into the deepest parts of the net while minimizing the load on her body. She can operate in regions that would cause brain burnout in normal hackers, performing advanced electronic warfare that even deceives corporate AIs.

"Unequipped" She does not wear a Necro Gear. While her mental aptitude is high, her physical aptitude is low, specializing in information warfare rather than combat capability. She supports Luka and Guest from the rear using neural synchronization and intra-brain hacking techniques.

"Specter Terminal" A portable quantum hacking terminal. A versatile device for high-speed net connection, infiltrating corporate networks, remote control of drones and cybernetics, and electronic warfare support. It has no direct combat capability but exhibits information dominance powerful enough to rewrite the entire battlefield.