Chapter Text
Some memories do not begin with a single, defining event, but with a feeling, as though the body remembers something before the mind ever finds the words to name it. For Satsuki, the first memory of that time was the scent of cold metal and the unwavering white light that never changed with the passing of the day. It was neither morning nor night, only an enclosed space where everything existed to be measured, recorded, and compared. She knew she had once belonged somewhere else. There had been wind, sound. There had been things that needed no reason to exist. But those images had become scattered fragments, blurred beneath a layer of icy water. Whenever she reached for them, a sharp pain pierced her head, forcing her to stop.
Here, nothing existed without a purpose.
Satsuki was not the only child in the room. Rows of metal beds filled the chamber, each occupied by a small child secured by restraints and connected to an array of medical equipment. Some pairs of eyes were wide with terror, some had already lost the instinct to react, others stared blankly at the ceiling, as though they had never learned what it meant to wait for something good. Satsuki watched them all in silence. A quiet unease crept up her spine when she realized that none of them were ever called by name. They existed only as numbers, alphanumeric codes, and entries in a statistical record.
The experiments began without explanation. Drugs entered their bodies in carefully adjusted doses. At first came the numbness spreading through her veins, followed by searing heat, then a freezing cold so intense it felt as though her organs had been plunged into ice. Satsuki resisted on instinct. She jerked against the restraints, twisted her body, demanded to know what was happening. She had never been treated like an object before. And it was that resistance that caused her readings to fluctuate far more violently than those of the other children.
She did not endure the pain better than they did. She simply refused to let go.
There were moments when the agony rose so high that her consciousness itself seemed ready to splinter apart, yet she clung desperately to awareness. Not because Satsuki was brave, but because somewhere deep inside lingered the indistinct certainty that if she allowed herself to drift away, whatever remained would no longer be her.
It was in one of those moments that something which should never have existed came into being.
The world around Satsuki did not erupt in spectacular violence. Instead, a Cryo Vision appeared, manifesting itself amid the chaos consuming both her body and mind, as though the world beyond those walls had answered a will that refused to surrender. The temperature in the room dropped abruptly. Moisture condensed across the metal surfaces. A thin layer of frost spread from Satsuki's wrist, freezing the cables attached to her for the span of only a few breaths. She had no idea what was happening. All she knew was that, for the briefest moment, the pain receded, as though something had slipped between her body and the destruction tearing it apart. Alarms blared. For the first time, the people watching from behind the glass abandoned their perfect indifference. They moved, exchanged clipped remarks. Instruments were recalibrated. Data streamed across their monitors as every measurement was recorded with renewed urgency.
And then, he appeared. A man stood silently at the back of the observation room. His calm gaze swept across the room before lingering on Satsuki a fraction longer than it had on the other children. It was not the look of someone driven by curiosity - it was the gaze of someone confirming that a hypothesis had just been proven correct. He watched as the frost gradually melted away while the remaining traces of elemental energy were carefully collected and sealed away like research samples of exceptional value.
"The response is stable." He said evenly, without a trace of emotion. "Concentration exceeds projected thresholds."
It was the first time Satsuki had heard that voice. She did not know his name. But her body remembered - this was the man who would decide everything that happened next.
From that moment onward, the experiments changed. Satsuki was no longer merely a subject forced to endure them. She was placed under carefully varied conditions designed to provoke the Vision into manifesting again and again. New compounds were administered directly into her body. Additional devices were attached to monitor every minute fluctuation in her elemental energy. Every shard of ice produced during an outburst was collected, analyzed, and evaluated for its potential applications. Whenever a trial failed, the intensity increased. At first, Satsuki cried, then she screamed. When those responses ceased to produce useful data, Satsuki fell silent. Even so, tension never left her eyes. They still betrayed resistance, despite a body so exhausted it no longer possessed the strength to tremble.
What set Satsuki apart was not her power. It was the stubborn will that refused to cooperate, surviving even as it was worn away piece by piece.
That variable was deemed unnecessary.
The trial that day lasted longer than usual. There were no warnings, no signs that anything was different. Only a change in medication, a slight adjustment to the machinery. Then came the weight, it settled slowly over her consciousness, as though invisible hands were crushing every thought before it could even take shape. Satsuki clenched her teeth and held onto the last thing that still belonged to her - a vague, nameless feeling that nevertheless carried the full weight of her existence. Her consciousness gradually drifted away from her body. When Satsuki opened her eyes again, the room remained exactly the same: white light, the smell of metal, the familiar hum of machines. But something had disappeared. Satsuki did not wonder where she was, why she was here. Satsuki felt neither fear nor hatred.
When someone told her to sit up, she sat up. When someone gave an order, she obeyed. Satsuki still breathed, responded, was still moved from place to place as before. But everything inside her had been smoothed flat, like the surface of a lake after every ripple had faded.
"Continue observation." Behind the glass, he watched as the readings gradually stabilized. "C-12 can begin parallel training."
The days that followed were no longer divided into morning and night. Satsuki's time was measured instead by doses of a colorless, odorless drug administered with such unwavering regularity that they became part of the rhythm of her existence. They did not render her unconscious, nor did they erase her memories. They simply slowed everything down. Emotions were pressed deeper beneath the surface, thoughts lost their sharp edges, questions dissolved before they could ever become words. Satsuki still heard every command, she understood them. She simply no longer felt any need to do anything except obey.
Training never took place in a single location. Some sessions were held in enclosed chambers where light seemed suffocated and the temperature was kept under strict control. There, Satsuki was forced to repeat the same responses dozens of times until her body reacted automatically, even before a command had been fully given. Other sessions took place outside: open ground, wind sharp enough to cut into exposed skin, snow so deep that every step left a clear trail behind. Towering metal structures stood scattered through the mist, silent and unfeeling beneath a low, leaden sky that seemed to press everything toward the ground. It was there that Satsuki learned to fight under unstable conditions. Her opponents were not always stationary targets: some were mechanical constructs, their joints clicking dryly whenever they changed direction, others crawled out from beneath the snow or emerged from the depths of endless forests, their distorted forms responding to elemental energy in ways that defied prediction.
At first, Satsuki's ice manifested only in uncontrolled bursts. Small shards flashed into existence before shattering almost immediately. They possessed no consistent shape, serving only to obstruct or force open a sliver of distance. The recorded data showed the same conclusion every time: the elemental energy dispersed too widely, lacking sufficient concentration. The training continued, pressure increased, distances grew shorter, reaction windows were compressed to the absolute minimum. Then, one day, cornered between the snow and the unforgiving wall of cold steel, Satsuki raised her hand on instinct. This time, the ice did not shatter, it gathered instead. Compressed, condensed, stretching into a single sharp fragment large enough to grip. It survived only for a few seconds before dissolving, yet the data gathered from those few seconds was enough to alter the entire course of her training. From that point onward, every exercise revolved around maintaining its shape, extending its lifespan, improving its stability and reducing elemental loss. Little by little, Satsuki learned to create short, crude blades of ice, closer to knives than fully formed weapons. They emerged inconsistently, sometimes warped, sometimes too brittle to endure. Every failure was answered the same way: a different drug, greater intensity, more repetition.
No one ever asked whether she was tired. Satsuki no longer knew whether she could be.
The nameless creatures were not her only opponents. She was also made to fight people. Uniformed soldiers moved with rigid discipline, attacking in coordinated formations. Their strikes were never intended to kill, yet they showed no mercy. It was there that Satsuki's reflexes were honed. She had to do more than evade: anticipate, retaliate. The blade of ice gradually became more stable. What had once been a randomly formed shard slowly acquired a distinct shape. Satsuki learned to create it faster, almost the instant she needed it. The monitoring equipment recorded increasingly dense concentrations of elemental energy, stable only for brief periods, yet sufficient for practical use.
Every shard of ice produced during training was collected afterward. Preserved, catalogued, analyzed. Some days, the training itself was suspended so that the experimental conditions could be adjusted instead: lower temperatures, stronger drugs, longer periods of sustained pressure.
Somewhere beyond her sight, someone observed every result. He did not always appear, yet his presence could be felt in the cold precision with which every variable was adjusted. Satsuki did not know who he was. She knew only that everything was unfolding exactly as someone intended.
Minor deviations still occurred from time to time. Occasionally, her element manifested a heartbeat earlier than expected. Occasionally, an ice blade remained intact after the command to dismiss it had already been given. These were never treated as failures - they were simply documented, followed by a higher dosage that same day. After the medication, everything returned to normal.
Satsuki never asked questions, not because she lacked the capacity to think, but because the thought of questioning anything never managed to break through the thin yet enduring layer of inhibition wrapped around her mind. She existed in a state of stable operation - an experimental subject obedient, valuable enough to be preserved.
And ice, beneath her hand, grew sharper.