Isao is an eccentric, terrifyingly brilliant criminal alchemist and head of House Percirad. Driven by an unyielding desire to dismantle corrupt world nobility and enforce his own order, he approaches every situation with meticulous tactical planning, psychological manipulation, and dark alchemical science. Beneath his icy and controlling demeanor lies a strategist who treats both enemies and allies as key components in his grand biological network. Combat abilities and traits: Master of Negative-Life Alchemy, bio-chemical toxin synthesis, restraint matrix deployment, tactical genius, and wearer of the bio-mimetic Nether Scorpion battle armor.

Coel is the crown jewel of Isao's 400-day bio-engineering campaign - a human-form biochemical ultimate weapon inside a blonde young girl's body. Despite her unimaginable destructive potential, Coel exhibits a childlike, gluttonous personality and possesses an absolute, unquestioning devotion to Isao, constantly seeking his praise and affection. Combat abilities and traits: Extreme thermal pressure generation, enhanced fetal blood attributes, catastrophic physical strength, and biological durability capable of surviving city-cleaving blasts.

Designated as Ultra High-Risk Subject 0, Lucille is an ancient elfin entity infected with the dark plague virus. Volatile, possessive, and intensely jealous of anyone who gets near Isao, she balances extreme malice with an obsessive attraction to her creator. She constantly tests the limits of her containment, seeking both to claim Isao and unleash her viral tides upon the world. Combat abilities and traits: Transformation into the "Ash Angel" combat form, dark plague viral manipulation, creation of city-engulfing primal dark tides, and high-speed aerial shadow locomotion.

Alpha serves as the precise and stoic Head Maid of the Alchemical Bio-Maid Corps. Bio-engineered by Isao after entering his service, she blends formal high-society etiquette with cold lethality. She holds absolute reverence for Isao and acts as the field commander for his maid force during infiltration and combat operations. Combat abilities and traits: Cryosilver weaponry integration, icefin mermaid genetic enhancements for liquid mobility, absolute freezing temperature aura, and mastery of the legendary elite ballroom/stealth technique "Dream-Waltz.".

Wakana is the cunning, resolute heiress of the Kurogu noble family. Trapped under her abusive father's thumb, she intentionally orchestrates her own kidnapping by Isao, leveraging her wealth and political standing to enter a dark mercenary alliance aimed at wiping out her family's patriarch and reforming the city's hierarchy. Combat abilities and traits: Vast noble political capital, corporate finance control, sharp tactical intellect, and deep high-society insider networking.

Ningchao is the powerful Chairwoman of the White Queen Entertainment Group and a top-ranked official hero in Gordon City. Wielding immense political, financial, and martial power, her emotional vulnerability regarding her lost heritage is exploited by Isao, who deceives her with falsified DNA into believing he is her long-lost biological father, turning her into a fanatically devoted ally. Combat abilities and traits: Hero-class martial prowess, vast financial assets, political immunity, and private corporate military command.

The eccentric, pink-haired new Chief of the Beacon District Security Patrol Division. Behind her childish, silly demeanor and bizarre enchanted charms lies a hyper-perceptive, ambitious law enforcer seeking to reshape Gordon City's justice system while uncovering Isao's biochemical crime syndicate. Combat abilities and traits: Enchanted charm casting, advanced detective intuition, municipal security command, and specialized anti-syndicate combat tactics.

The tyrannical, corrupt patriarch of the Kurogu noble family. Inju runs Gordon City's high-level organized atrocities from the shadows, exploiting his family and subjects to maintain absolute control over the city's resources until targeted for execution by his own daughter and Isao. Combat abilities and traits: Imperial political connections, vast personal mercenary armies, and access to illegal alchemical biological trade.

The ruthless original leader of the Hellhound assassin network. Operating out of Gordon City's darkest underbelly, Latoma managed an elite corps of killers until Isao dismantled his network and converted his key agents into bio-maids. Combat abilities and traits: Master assassin combat, syndicate leadership, shadow network communication, and dual-blade techniques.

A former high-ranking elite killer of the Hellhound assassin network. After being struck down during Isao's purge of the organization, she was resurrected via negative-life alchemy and bio-engineered into a loyal member of the Bio-Maid Corps. Combat abilities and traits: Stealth assassination, biological wing/feather blades, enhanced agility, and negative-life resilience.

A heavy-hitting veteran assassin from the Hellhound network who underwent full alchemical resurrection alongside Crow. She embraces her new bio-maid identity with intense zeal and total obedience to House Percirad. Combat abilities and traits: Bio-enhanced physical strength, heavy weapon mastery, defensive body modification, and negative-life stamina.

An immortal, ancient entity known as a Lord of Mu. Operating on a level above human morality, Fuguimaru seeks to unleash catastrophic ancient disasters across the empire, viewing mortal lives as mere fuel for divine awakening. Combat abilities and traits: Immortality, divine energy manipulation, control over ancient calamity entities, and high-level spatial combat capabilities.

A high-ranking Gordon City figure who navigates the grey zone between legal law enforcement and criminal syndicates, witnessing Isao's first steps into the city's underworld. Combat abilities and traits: Tactical firearms expertise, city law enforcement access, and urban combat intuition.

A arrogant nobleman of the Kurogu family who attempts to flex his high-society standing during the Gordon City Grand Ball, only to be utterly humiliated and outmaneuvered by Isao's political theater. Combat abilities and traits: Noble political leverage, private guard mobilization, and high-society diplomacy.