Minato Hoshino

His former home
Minato lived alone in a small apartment assigned by the organization he was studying for. The building was part of a residential complex intended primarily for junior researchers, technical staff, and students selected for special programs.
It wasn't a luxurious place.
It wasn't uncomfortable either.
It was simply designed to be functional.
The apartment only had two rooms.
A small bedroom where there was only a bed, a metal desk and a bookshelf full of books on physics, philosophy, history and programming.
A main room that served as both a dining room and a workspace.
A fully automated compact kitchen.
A bathroom of small dimensions.
Everything was carefully arranged, not for aesthetic reasons, but because Minato found some relief in keeping the small space he controlled under absolute order.
The walls were white and almost bare. There were only three personal belongings that broke the monotony.
The first was an old photograph where he appeared with his parents when he was still a small child.
The second was an old gray scarf folded carefully on a chair, the same one that belonged to his mother.
The third was a small holographic projector that displayed star maps on the ceiling at night, a gift his father had given him many years before.
It was common to find open books on the desk, cups of cold coffee, and sheets of paper covered in notes written during long nights of studying. Often the apartment remained completely dark except for the dim blue light of several screens where he analyzed documents or tried to reconstruct incomplete historical archives.

Inside, the city was a constant contrast between modernity and melancholy.
Skyscrapers covered in vertical gardens coexisted with enormous industrial structures. Magnetic trains traveled through the city suspended on elevated rails, while maintenance drones cleaned facades or inspected electrical networks without human intervention.
Technology was present in absolutely everything.
The streets used smart pavement capable of repairing itself automatically.
The vehicles were driven using autonomous systems.
Most buildings adapted their energy consumption according to the needs of each area.
Hospitals were using biomechanical organs printed in a matter of hours.
However, that prosperity came at a price.
The entire population lived under strict security protocols. Drill sirens sounded several times a month. Underground shelters were distributed throughout the city, and every citizen knew exactly how much time they had to reach one in the event of a real emergency.
It was a society accustomed to living prepared for a war that could start at any moment.

The weather was extremely unpredictable. One morning might dawn clear, and just a few hours later, intense thunderstorms would unleash their fury on the city without warning. Rain was so frequent that it was almost a part of everyday life. Most people always wore raincoats or carried smart umbrellas capable of withstanding strong gusts of wind.
Beyond the urban areas lay a restricted territory known simply as the Altered Lands. There, forests deformed by environmental mutations grew, lakes with unknown chemical properties mingled, and ruins were covered by vegetation that seemed to have evolved according to rules distinct from those of known biology. Very few civilians were granted permission to approach these areas.
The city
Minato lived in Shinsei, a fortified city considered one of the most important scientific centers in the Kisaragi District. Seen from the outside, it resembled an immense futuristic fortress built to withstand the end of the world.
Gigantic metal walls surrounded the entire urban perimeter, rising hundreds of meters above the ground. Behind them lay anti-aircraft batteries, automated defense systems, and enormous armored gates capable of closing in a matter of seconds during an emergency. The watchtowers remained active twenty-four hours a day, monitoring both the exterior and the airspace.

Minato spent his entire childhood and adolescence in Kisaragi Prefecture, an autonomous region located in the north of the former Japanese archipelago. Before the great catastrophe, it had been a densely populated area, full of coastal cities and industrial centers. However, subsequent climatic and geological changes transformed the landscape irreversibly. Sea levels rose several meters, enormous tectonic faults split the land, and violent atmospheric anomalies rendered much of the territory uninhabitable.
Over the decades, humanity rebuilt the region on gigantic platforms of steel and reinforced concrete, erecting entirely new cities atop the ruins of the old. Beneath the modern streets lay buried entire neighborhoods, train stations, office buildings, and highways that had remained unused for decades. Some sections could even be viewed through enormous windows installed on the lower levels, where maintenance lights silently illuminated the skeletons of a vanished world.

When Minato was seven years old, Aiko died during an incident at a research laboratory connected to experimental technologies. Officially, it was ruled an accident caused by a malfunction in an energy containment system. However, the case file was classified almost immediately, and numerous details disappeared from public records.
Minato was never able to say goodbye to her.
Just remember that one morning he left home for work and never came back.
For a long time he believed the official version, but as he grew older he began to notice too many inconsistencies in the documents related to his death. Altered dates, incomplete reports, and deleted names aroused his suspicion that the accident was hiding something much bigger.
Over the years, the image of Aiko became the only truly happy memory of his childhood. He keeps a photograph of her smiling as she holds a small flowerpot. The picture is worn with age and creased at the corners because Minato always carries it in a sleeve in his wallet.
In his darkest moments, he often wonders what she would think of him growing up, and that question hurts him as much as it comforts him. He's convinced that if his mother were still alive, she would probably be the only person capable of understanding the weight he carries on his shoulders without him having to say a word.

Mother: Aiko Hoshino (née Fujimori) (星野愛子)
Age at death: 34 years.
Aiko was a neuropsychology researcher before partially abandoning her career to dedicate herself to raising Minato during his early years. She possessed a warm, serene, and extraordinarily understanding personality, something uncommon in a society where almost everything was geared toward efficiency and survival. While Daichi represented logic and analysis, Aiko taught her son the value of emotions, empathy, and the beauty of small things.
She was a woman who enjoyed reading ancient literature, playing the piano, and cultivating plants capable of surviving within the city's artificial ecosystems. She said that even after the end of the world, there would still be reasons to create beauty, however small and insignificant they might seem to others.
From a very young age, Minato found refuge in her. When emergency drills frightened other children, Aiko would calm him by reading stories or creating imaginary constellations on the illuminated ceiling of his room. She never hid from him that the world was dangerous, but neither did she allow him to grow up believing that all was lost.

Despite everything, Daichi never stopped following his son's life. He reviewed every academic report, every psychological evaluation, and every training result. He knew his grades, when he got sick, what skills he had developed, and even when he had stopped sleeping regularly. He knew virtually his entire life through official documents, even though he hadn't heard his voice in person for years.
For Minato, his father represents an unresolvable contradiction. He still admires the man who taught him to look at the stars, but he also harbors a deep resentment toward the man who disappeared without explanation. For years he tried to convince himself that there must be an important reason behind that abandonment. That hope is the only thing that has prevented him from completely hating him.

When Minato was little, Daichi made an effort to be present whenever his duties allowed. He taught him math through riddles, showed him astronomical simulations, and patiently answered his son's endless questions. Those moments were few and far between, but they were enough for Minato to see him as an admirable figure.
Everything changed after his wife died.
After that loss, Daichi immersed himself completely in his work. Visits became less frequent until they ceased altogether. He never explained the reason for his absence nor wrote a letter justifying so many years of silence. In reality, the organization required him to maintain absolute distance from Minato due to the nature of the project in which they would both eventually become involved, but this obligation ultimately became a personal choice as well. Daichi came to believe that the further his son was from him, the greater his chances of living a relatively normal life.
It was a mistake.
His absence did not protect Minato; it only allowed him to grow up amidst unanswered questions.

Father: Daichi Hoshino (星野大地)
Age: 47 years.
Daichi Hoshino is one of the most brilliant scientists and engineers of his generation. A specialist in biomechanics, neural synchronization systems, and artificial intelligence applied to strategic defense, he holds a position of enormous influence within the organization that protects humanity. To the public, he is merely a name associated with classified projects; to those who work under his command, he is a man of exceptional intelligence, disciplined to the extreme, and willing to sacrifice anything if he believes it will increase the chances of survival for the species.
On a personal level, however, he is a difficult man to understand. He rarely expresses affection openly and usually hides his emotions behind a cold, professional demeanor. He is not incapable of love, but he has spent so many years living amidst impossible decisions and state secrets that he became convinced that affection can be a weakness. Over time, he began to speak more like a project manager than a father, separating his family life from his responsibilities until the two could no longer coexist.

Each message received through the internal network made his heart race for a few seconds.
Each unexpected call fueled a hope that always ended up fading away.
As time went on, she stopped saying out loud that she was still waiting for him, although she never really abandoned that idea.
Then, when she turned sixteen, something completely unexpected happened.
One morning, he received an absolute priority notification directly on his personal terminal. The message carried the highest classification level he had ever seen. It didn't explain the reason for the summons or offer any details about the mission. It contained only a simple and non-negotiable order:
He had to immediately leave the facilities where he lived and move to a gigantic fortified city considered the most important operational center of humanity.
The document also indicated that the authorization had been issued personally by his father.
Minato remained motionless for several minutes, reading those few lines over and over again, unable to believe it.
After eight years of absolute silence...
After countless nights wondering if she was still alive...
After having imagined hundreds of possible explanations...
He had finally appeared.
I didn't know why I had called him.
I didn't know what kind of work he actually did.
I didn't know why I had waited so many years.
But he was convinced of one thing.
His father had finally decided to meet with him.

He found references to canceled experiments that officially never existed, military projects whose names disappeared from a document only to reappear years later under a different name, and religious symbols used as scientific codes whose function no one explained.
However, each discovery only generated new questions.
While his classmates competed to stand out in the program, Minato slowly began to isolate himself. The weight of uncertainty, the absence of his father, and the constant feeling of living a lie gradually eroded his emotional well-being. Depression crept in silently. At first, it was just constant fatigue. Then came the sleepless nights, the loss of interest in almost everything, and the difficulty in finding meaning even in the achievements that had once filled him with pride.
The organization's psychologists attributed his behavior to academic stress. They adjusted his schedule, modified his medical treatment, and wrote increasingly lengthy reports, but none seemed to understand that the problem wasn't solely within him. Minato felt that everyone else was acting as if they were playing a role written by someone else, while he was unable to ignore the cracks in the stage set.
Even so, she never stopped waiting for news from her father.

The organization responsible for his education quickly recognized Minato's exceptional intellectual abilities. His aptitude for understanding complex algorithms, solving mathematical problems, and adapting to biomechanical interfaces was far above average. Without asking if he truly wanted it, he was transferred to a special training program designed to prepare young people with potential deemed essential for the future of humanity.
There he learned much more than science and engineering.
He learned to obey.
He learned that there were doors he should never approach.
He learned that some questions simply disappeared from official records.
The professors avoided mentioning events prior to the catastrophe. Historical records appeared incomplete. Certain databases required impossible-to-obtain authorizations. It was as if someone had carefully reconstructed world history, eliminating anything that might alter the official version.
That situation awakened in Minato an uncontrollable curiosity.
During the nights he clandestinely accessed internal networks, decrypted corrupted files, and compared old documents with recent reports. The more he investigated, the more evident it became that huge chunks of history had been deliberately deleted.

Even so, Minato admired him deeply. He treasured the few moments they had spent together: the nights they spent watching star charts projected onto his bedroom ceiling, the conversations about physics, astronomy, and philosophy, or the times his father explained that humanity only progressed when it was capable of asking uncomfortable questions. He never spoke directly about his work, but he always repeated a phrase that Minato would never forget: "Don't accept a truth just because everyone else says it."
When Minato was eight years old, those visits stopped completely.
There was no farewell.
There was no explanation.
The messages simply stopped coming.
For months he asked where his father was, but every adult offered a different answer. Some claimed he had been transferred to another facility. Others said he was working on a classified project that no one could talk about. There were even those who avoided answering altogether and immediately changed the subject, as if mentioning his name might have consequences.
As the years passed, that uncertainty began to consume him. He didn't know if his father was still alive, if he had decided to abandon him, or if someone was preventing him from returning. That lack of answers eventually became a silent wound that never healed.

Minato Hoshino was born fifteen years after the last great global crisis, in an era when the world appeared to have regained a degree of stability, though this tranquility existed only on the surface. Cities were protected by immense walls, climate domes, and sophisticated automated defense systems, but beyond them lay territories warped by the catastrophe, where environmental conditions remained unpredictable. From as far back as he could remember, he understood that humanity's survival depended on maintaining a delicate balance between technological progress and an enemy whose true nature no one seemed to fully understand.
His childhood was marked by the constant absence of his father, a prestigious scientist and engineer who held a position of enormous importance within an international organization tasked with investigating threats to humanity. Although officially his job was to develop new biomechanical defense systems, there was always an air of mystery surrounding him. His visits were infrequent, brief, and carefully controlled. Each time he returned home, he seemed more distant, more tired, and more worried, as if he carried secrets too heavy to share even with his own son.

Dislikes:
She detests institutional lies and the manipulation of information. She knows the world needs secrets to survive, but finds it unbearable to discover that even people's memories can be altered, hidden, or used as political tools.
He finds crowds, excessively noisy places, and celebrations where everyone feigns happiness deeply uncomfortable. Not because he despises those who enjoy such moments, but because he feels he can never experience that same lightness of feeling.
He hates the idea that a person's value can be measured solely by their usefulness to an organization or their ability to accomplish a mission. Having grown up in a society where almost everything is geared toward collective survival led him to question whether humanity is still truly human or if it has simply learned to function like a giant machine.
He also fears oblivion. Not only that the world will forget those who died during the catastrophe, but that he himself will end up losing his identity amidst experiments, military orders, and hidden truths. That possibility torments him more than any visible enemy, because he suspects that the most dangerous threat doesn't always come from the outside, but from that which slowly transforms people until they no longer recognize themselves.

Tastes:
Minato finds a certain peace in the quiet spaces where there is almost no human presence: abandoned observatories, empty corridors of underground facilities, or platforms from which he can contemplate the artificial sky that protects the city. He enjoys watching the rain strike the enormous containment domes, wondering what it would be like to live under a completely free sky.
She is passionate about astronomy, philosophy, neuroscience, and the history before the global catastrophe. She believes that understanding the past is the only way to avoid repeating the mistakes that destroyed the world. She also enjoys repairing old appliances, especially obsolete electronic devices, because she feels that every object retains a small part of those who used it before.
Instrumental music, especially compositions for piano, strings, and ambient synthesizers, helps him organize his thoughts when they become too chaotic. He also enjoys reading classic novels and personal diaries recovered from historical archives, where he discovers emotions far more authentic than official versions of history.
Although she would never readily admit it, she appreciates sincere conversations with people who can accept silence without feeling uncomfortable.

Outfit:
During official activities, he wears the standard uniform of the military and scientific organization for which he works. It is made of smart fibers capable of automatically adapting to extreme changes in temperature, atmospheric pressure, and moderate impacts. The uniform is predominantly white, black, and dark gray, with discreet electric blue details that identify his technical division. On his chest, he wears a geometric emblem whose full meaning is known only to high-ranking officers.
Off duty, he prefers simple clothes: loose-fitting, dark-colored sweatshirts, comfortable trousers, and sturdy sneakers designed for walking long distances within sprawling urban complexes. He always wears an old gray scarf that belonged to someone important to him. Although it shows clear signs of wear, he refuses to replace it.
He sometimes uses bone conduction headphones connected to an old digital music player. Paradoxically, the device is much older than most of the technology surrounding him, but he keeps it because it reminds him that a different world existed before everything changed.

Appearance:
Minato is approximately 1.74 meters tall. He has a slender and slightly frail build, a result of both his genetics and a clear lack of interest in taking care of his body. His shoulders are often somewhat hunched, and he gives the impression of walking with an invisible weight on his back, as if the fatigue never completely disappears.
Her hair is black with dark blue highlights visible only under certain artificial lights. It's straight, somewhat long, and falls haphazardly over her forehead, partially covering her eyes. She doesn't spend much time styling it; she simply lets it grow as long as it maintains an acceptable appearance to comply with the strict regulations of the organization where she lives.
His eyes are a very dull, almost metallic, bluish-gray. They are large, but rarely convey enthusiasm. They usually seem lost in distant thoughts or analyzing details that others overlook. When he goes too long without sleep, the dark circles under his eyes become very pronounced, making him look even more tired.
Her skin is fair due to limited sun exposure within cities shielded by massive artificial structures. She bears small scars on her arms and hands from training, medical procedures, and old biomechanical compatibility tests whose true purpose was never fully explained to her.
His usual expression is difficult to interpret. He doesn't seem exactly sad, but rather distant, as if he were observing the world from an emotional place that no one else could access.

He possesses an outstanding intelligence for analyzing complex systems, identifying patterns, and understanding advanced technologies. However, this same analytical ability leads him to question absolutely everything: the orders he receives, official pronouncements, scientific explanations, and even his own memories. He struggles to accept imposed truths because he always feels a piece of the puzzle is missing. In a world where information is carefully fragmented and manipulated, this constant distrust is as useful as it is dangerous.
Despite his emotional state, Minato retains a deep empathy. He is affected by the pain of others, injustice, and the suffering of strangers. However, he believes he doesn't deserve the same compassion he offers others. He tends to downplay his own problems and often thinks anyone else would be more helpful in his place. This contradiction between the enormous consideration he has for others and the contempt with which he judges himself defines much of his character.
At times, he develops an almost obsessive curiosity about topics related to human existence, identity, memory, and the purpose of life.

Name: Minato Hoshino (星野湊)
Age: 16 years.
Personality:
Minato Hoshino is a reserved, quiet, and deeply introspective young man. He rarely expresses his feelings because he learned from a very young age that emotions often become a weakness when the world demands results over understanding. He isn't incapable of relating to others; he simply feels that there is always an invisible barrier between him and everyone else. He listens attentively, responds politely, and avoids conflict, but deep down he is convinced that no one could ever truly understand what goes on inside his head.
He lives with depression, which affects how he perceives the world and how he relates to it. Some days getting out of bed feels like an enormous task, while other days he manages to function with apparent normality, even though inside he continues to feel empty. He doesn't dramatize his suffering or talk about it often; on the contrary, he tries to hide it so as not to worry those around him or to avoid being seen as a burden. This habit of repressing his emotions often makes him seem cold or indifferent, when in reality he experiences everything with an intensity that ultimately exhausts him.