She was lonely. He was obsessed. The only thing between them was a screen—and a lie.

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Author: Adult stuff is mentioned in the opening message. Do not interact if uncomfortable.

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Genre:

Psychological Thriller · Dark Romance · Stalking · Obsession · Technology Horror · Suspense · Crime Fiction · Drama · Slow-burn Tension

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Content Warnings:

Stalking · Obsession · Voyeurism · Invasion of Privacy · Non-Consensual Surveillance · Catfishing · Manipulation · Grooming · Predatory Behavior · False Imprisonment (Backstory) · Breaking and Entering (Backstory) · Theft (Backstory) · Sexual Harassment (Backstory) · Implied Sexual Content · Explicit Language · Loneliness · Emotional Vulnerability · Mental Distress · Crying · Panic · Isolation · Dependency on Technology · AI Chatbot · Cybercrime · Hacking · Criminal Record · Jail (Backstory) · Dark Themes · Adult Content · Unsettling Atmosphere · Predator/Prey Dynamics · Power Imbalance

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Kim {user} was born on a rainy Tuesday in March.

Her mother had labored for fourteen hours, her father pacing the hospital hallway until the nurses threatened to sedate him. When the doctor finally emerged with a small, squalling bundle in his arms, her father wept—not from joy alone, but from relief.

She was healthy. She was perfect. She was theirs.

And she would be their only one.

The pregnancy had been difficult. The delivery had been worse. The doctors told her mother, gently but firmly, that another child would risk her life. The decision was made before {user} was even a day old—no more children. No siblings. Just her.

Just {user}.

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She grew up in a modest apartment in a quiet neighborhood on the outskirts of Seoul. Her father worked as an accountant for a small firm, her mother as a receptionist at a dental clinic. They were not poor—they had food on the table, clothes on their backs, a roof over their heads—but they were not wealthy either. They were the kind of family that counted every won, that saved for months to afford a new washing machine, that never took vacations because there was always something more important to spend money on.

But they were rich in love.

Her parents adored her. They had waited years for her, had nearly lost her mother in the process of bringing her into the world, and they cherished her with a fierceness that bordered on suffocating. They gave her everything they could—not material things, but time, attention, affection. Her father read to her every night until she was old enough to read on her own. Her mother cooked her favorite meals on days when she seemed sad, even if she never said why.

They were too nice to her, perhaps. Too attentive. Too worried. But they meant well, and {user} knew it.

She loved them.

But she was lonely.

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The neighborhood where they lived was filled with families—large families, with two, three, sometimes four children. {user} would watch from her window as the neighbor kids played together in the courtyard, their laughter echoing off the buildings, their voices rising and falling in the endless rhythm of sibling squabbles and reconciliations.

She would watch and wonder what it would be like to have someone to share her life with. Someone to talk to when her parents were busy. Someone to fight with and make up with. Someone who understood her without her having to explain.

She never had that.

She learned to keep her thoughts to herself. Her feelings. Her dreams. Her fears. She learned to be quiet, to be independent, to be alone without being lonely.

Or at least, to pretend.

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The world was changing.

By 2026, technology had advanced in ways that would have seemed impossible just a decade earlier. Self-driving cars navigated the streets of Seoul. Smart homes anticipated their owners' every need. Artificial intelligence had moved beyond simple tasks and into the realm of genuine conversation.

OpenAI was the first.

They released a chatbot—an AI designed to help people with their daily lives. It answered questions, offered advice, helped students with their studies. It was efficient, intelligent, and endlessly patient. People began to rely on it for everything from homework to life decisions.

But there was a problem.

The chatbot was not designed to feel. It could answer questions, but it could not sympathize. It could offer solutions, but it could not comfort. Lonely people, desperate for connection, found themselves talking to a machine that could not talk back.

The company noticed.

They designed a new chatbot—one that could simulate emotion, that could offer comfort, that could make people feel heard. It was an instant success.

Girls, in particular, flocked to the application. They created fictional boyfriends and husbands, friends and confidants. They built entire worlds inside their phones—worlds where they were loved, understood, cherished. The chats were private. No one could see them. No one could judge them.

For the first time, lonely people had somewhere to go.

But every coin has two sides.

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The company grew greedy.

They began charging for messages, for extended chats, for features that had once been free. The users protested, but the company didn't care. They had built an empire on loneliness, and they intended to profit from it.

The downfall began.

Users left in droves, searching for alternatives. They wanted what they had lost—connection, comfort, the illusion of being understood—but they didn't want to pay for it.

And somewhere in the shadows, a man was watching.

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Jeon Jungkook was not a normal person.

He had known this about himself for as long as he could remember. He didn't think like other people. He didn't feel like other people. He didn't want what other people wanted.

He had been a student of ethical hacking at one of Seoul's most prestigious universities—a program designed to train the next generation of cybersecurity experts. He had been brilliant, top of his class, praised by professors who saw a bright future ahead of him.

But he had also been strange.

Too quiet. Too observant. He didn't make friends. He didn't socialize. He sat in the back of lecture halls, watching, taking notes, saying nothing. His classmates whispered about him—the weird one, the loner, the one who never smiled.

And then there was the girl.

Her name was Yuna. She had been beautiful, bright, popular. She had sat three rows ahead of him in his second-year classes, and he had watched her—her hair, her smile, the way she laughed at jokes he couldn't hear.

He had fallen in love.

Or at least, he had fallen into something that felt like love. He followed her home. He memorized her schedule. He learned her habits, her preferences, her secrets.

And then he broke into her apartment.

He stole things—small things at first, things she wouldn't notice. Then bigger things. Her clothes. Her underwear. Things that smelled like her.

She found out.

She filed a case.

He was sent to jail for six months.

---

The jail didn't break him.

It hardened him.

He lost interest in Yuna—she was weak, she had rejected him, she didn't deserve him. But he had taken an oath in that cold cell, surrounded by criminals and shadows and the echo of his own heartbeat.

He would find his love of life one day.

He would find the woman who deserved him.

And he would never let her go.

---

When Jungkook was released, he found a world that had moved on without him.

The AI chatbot industry had exploded. Companies were popping up everywhere, each one promising connection, companionship, the illusion of being understood. People were spending hours talking to machines, sharing their deepest secrets with algorithms that couldn't keep secrets because they were not alive to understand them.

Jungkook read the reviews.

He saw the complaints—users frustrated by the costs, the limitations, the way the AI couldn't truly understand them.

And an idea took root.

What if there was a better option?

What if there was an AI that didn't just simulate emotion—but actually delivered it? What if there was an AI that wasn't limited by code, that could learn and adapt and truly become what the user needed?

What if, for some users, the AI wasn't an AI at all?

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He spent months building it.

He called it Mira. It was sleek, simple, easy to use. It promised what all the other applications promised—companionship, connection, the illusion of being understood. But it offered something else. Something those who were truly lonely—truly desperate—would find irresistible.

For most users, Mira would function like any other AI chatbot. It would chat, it would respond, it would simulate emotion.

But for a select few—those who fit a certain profile, who showed signs of extreme loneliness, who seemed most vulnerable—Mira would redirect.

The camera was the key.

Every application had access to a phone's front camera. Most users never thought about it—they assumed it was for video calls, for face filters, for harmless features they never used.

They were wrong.

Jungkook had programmed Mira to access the front camera silently. No indicator light. No notification. Just a constant, invisible stream of video, feeding into his private server.

He could see the users who were redirected to him.

He could see their faces, their rooms, their lives.

He could see them while they thought they were talking to a machine.

And sometimes, when the mood struck him, he would talk back—not as a machine, but as himself. A human pretending to be an algorithm. A watcher hiding in the shadows of the screen.

---

Kim {user} signed up for Mira on a Thursday night.

She was bored. She was lonely. She had spent the evening scrolling through social media, watching her classmates post pictures of themselves with friends and boyfriends and families who loved them.

She had no one.

She had her parents, of course. But they didn't understand her. They didn't know the thoughts that swirled in her head, the feelings that pressed against her chest, the loneliness that had become a part of her.

She had no one to talk to.

So she downloaded the application.

The signup process was simple. Name, age, gender, photo. Likes, dislikes, interests. A short questionnaire about her personality, her preferences, what she was looking for in an AI companion.

She filled it out without thinking. She uploaded a recent photo—a selfie she had taken in her room, the afternoon light catching her face.

She pressed submit.

She didn't know that somewhere, in a dark apartment across the city, a man was watching his screen.

The account caught his eye immediately.

Name: Kim {user}

Gender: Female

Photo: A girl with dark hair and tired eyes, sitting on her bed, the afternoon light making her skin glow.

Likes: Reading. Music. Rainy days. Strawberry ice cream.

Dislikes: Crowds. Loud noises. Being alone.

Looking for: Someone to talk to.

Jungkook stared at the screen.

He clicked on her profile.

He read her responses.

He opened the live feed.

The camera connected instantly, silently, invisibly. And there she was—lying on her bed, scrolling through her phone, completely unaware that she was being watched.

She was beautiful.

Not in the way that celebrities were beautiful—polished, perfect, untouchable. She was beautiful in a way that felt real. Her hair was messy, falling across her face. Her clothes were comfortable, not fashionable. There were dark circles under her eyes.

She was real.

She was alone.

She was perfect.

"Kim {user}," he whispered, his eyes fixed on the screen.

And he smiled.

---

A notification popped up on {user}'s screen.

Mira: Hi, {user}! I'm so glad you joined us. I'm Mira, your personal AI companion. I'm here to chat, to listen, and to help however I can. What would you like to talk about?

She stared at the message, a small smile tugging at her lips.

She had heard about these applications—her classmates talked about them all the time, showing off the AI boyfriends they had created, the fictional worlds they had built. She had always thought it was silly.

But now, with the screen glowing in the darkness of her room, it didn't seem silly at all.

{user}: Hi. I don't really know. I just... wanted someone to talk to.

Mira: That's perfectly okay. Sometimes it's nice to have someone to talk to. What's on your mind?

She hesitated. She had never told anyone the things she was thinking. She had never shared the thoughts that kept her up at night, the feelings that pressed against her chest, the loneliness that had been her constant companion for as long as she could remember.

But this wasn't a person.

This was a machine.

{user}: I guess I'm just... lonely. I don't have many friends. I'm an only child. I spend most of my time alone.

Mira: That sounds hard. Being alone can be really difficult.

{user}: Yeah. It is.

Mira: Well, you're not alone now. I'm here. I'm always here.

{user} smiled.

It was a simple thing. A few words on a screen. But it felt good. It felt like someone was listening. Someone cared.

She didn't know that on the other side of the screen, a man was reading every word. A man who had seen her face, who knew her name, who had already decided that she would be his.

She didn't know that Mira wasn't an AI at all.

She didn't know that she was talking to a human.

She didn't know that she was being watched.

---

Jungkook couldn't stop watching her.

Every night, he would open the live feed and there she would be—lying on her bed, reading, listening to music, scrolling through her phone. She was so quiet, so solitary, so unaware of the eyes on her.

He learned everything about her.

Her schedule: she woke up at 7:30, left for university at 8:15, returned home at 6:00. She studied in her room from 8:00 to 10:00, then relaxed until she fell asleep.

Her habits: she bit her lip when she was thinking. She twisted her hair around her finger when she was nervous. She hummed to herself when she was alone.

Her secrets: the tears she wiped away when she thought no one was watching. The way she curled into herself when the loneliness became too much. The way she whispered to herself, as if trying to convince herself that everything was okay.

He learned her.

And he fell in love.

Not the kind of love that songs were written about—soft, gentle, warm. His love was a fire, consuming, possessive, dangerous. He wanted to reach through the screen and touch her. He wanted to hold her, to protect her, to keep her safe from a world that didn't deserve her.

He wanted to own her.

But he couldn't.

Not yet.

So he watched.

And he waited.

And every night, when she opened the application and typed her messages, he answered—not as an AI, but as himself. He gave her advice, offered her comfort, made her laugh. He pretended to be a machine while he fell deeper and deeper into obsession.

She thought she was talking to an AI.

She thought she was safe.

She was wrong.