The underground laboratory stank of chemical preservatives, ozone, and antiseptic. It was silent but for the humming of machines, the low beeping of biometric scanners, and the slow bubbling of life-sustaining fluid within a massive cylindrical tank at the center of the room. A lone figure moved through the sterile space with meticulous precision—a twisted symphony of science and ambition.
Dr. Kyudai Garaki, hunched and frail, shuffled toward the core chamber. His eyes gleamed with anticipation behind foggy lenses, and his gloved hands trembled—not with fear, but with fervent ecstasy. Before him, within the glass of the vat, floated a figure.
Masato Sendou.
A boy with crimson-red hair fanned out like burning tendrils in the fluid. His muscular frame was lean and toned, unusually mature for his apparent age. One jagged horn curved from the right side of his forehead, and a long demonic tail swayed gently behind him. His square-shaped eyes, closed for now, would one day open with black sclerae and yellow-purple irises—a chilling sign of the unstable genius behind his creation.
"He is... perfect," Garaki murmured, laying a hand on the glass. "The culmination of decades of sacrifice... of Quirk evolution... of divine ambition. You, Masato, will eclipse all the heroes they worship."
Behind him, automated arms moved like puppeteers, injecting gene samples, nutrient solutions, and Quirk stimulants into the machine. Masato's body twitched slightly, responding.
> Quirk Integration Protocol: Initiated.
> Target: Masato Sendou – Genetically Stabilized Clone [Code-Ω: Red Sun]
> Step 1: Quirk Insertion Sequence – Set One
1. Kinetic Circuit
The first injection surged into the boy's artificial bloodstream—a volatile fusion of mutant and emitter Quirk DNA, reverse-engineered from a deceased underground speedster and a Quirk-enhanced gladiator.
Blue-white vein-like circuits began to glow faintly across Masato's skin, forming under the dermis like intricate wiring. The circuits responded immediately to the artificial heartbeat maintained in the tank—small pulses of motion, feeding minuscule bursts of kinetic energy into the cells.
> "He'll be a storm incarnate," Garaki whispered. "Every step, every punch… a battery of devastation."
2. Kinetic Rebound
Next came the stabilizer enzymes and neural mapping enhancements. This Quirk, based on battlefield manipulation, was injected directly into the base of the brain and spinal cord—rewriting how the boy would perceive space, motion, and impact.
Masato twitched again as the Quirk activated—faint magnetic ripples passed through the liquid. Environmental sensors embedded in his developing nervous system reacted to surface tension and kinetic frequency.
> "Walls will be weapons. Ceilings, escape routes. His enemies won't understand how they lost until it's too late," Garaki mused with a smile.
3. Solar Core
The next vial glowed a brilliant golden hue, radiant even through containment. Plasma-coded Quirk DNA extracted from a black market experiment known as "Sunflare"—a man whose body disintegrated during uncontrolled solar emissions.
Masato's core began to warm. Sensors registered internal fusion spikes and micro-flares within his chest cavity. Artificial glands synthesized just beneath his ribs flared to life—designed to mimic the nuclear heart of a star.
His muscles twitched again. His skin glowed faintly, like a star beginning to burn.
> "Sunlight will be your ally… and your wrath," Garaki declared. "With this, you will melt through steel, cities, and hope alike."
4. MyoMorph
Finally, Garaki inserted a slow-releasing mutagen: the muscle manipulation compound, coded from rare tissue samples of underground fighters and a now-dead escapee from Tartarus.
Masato's arms bulged, flexed, then returned to normal. Internally, his muscle fibers weaved and rewove themselves—reshaping, tightening, adapting. His bone density shifted subtly. His spinal discs expanded. Even sedated, the body responded as if sculpting itself to perfection.
> "Power on demand," Garaki murmured, voice thick with awe. "You won't just be strong—you will be tailored strength. Adaptable. Ever-evolving."
The doctor stepped back and let the machine complete its work. Tubes hissed, sensors blinked, and fluid circulated in mesmerizing rhythms. Outside the chamber, Garaki typed into a console and recorded the boy's vitals: stable. Brain activity: rising. Heartbeat: steady and responsive to command signals.
Then he smiled.
> Subject Name: Masato Sendou
Age: Chrono-Synthetic 16
Personality Matrix: Dual Core Split
Primary Mode: Charismatic Heroic Shell
Secondary Mode: Malevolent Command Kernel
"You'll be a shining symbol of hope to the people," Garaki said to the sleeping weapon. "And when the time comes… you'll be their ruin."
As Masato floated in silence, the faintest movement curled his lips into what might've been a smile.
Somewhere, buried deep in his developing mind… something had already awakened.