PAIRING : Yandere!Neighbor!Phainon x Female Reader
✦ SYNOPSIS : When the new neighbor moves in across the hall of your apartment, you never expect someone like Phainon — soft-spoken, unfailingly kind, and always showing up when you need him most. He’s the perfect man: helpful, attentive, and so easy to trust. But what lies behind that warm smile is something much darker. He’s not just watching. He’s waiting. And once he finally gets you alone, you realize too late that he never wanted to be your neighbor. He wanted to be your everything.
You thought you were just being friendly.
He thought you were already his.
WARNINGS : This story contains heavy yandere and psychological horror themes, including non-consensual drugging, forced captivity, obsessive behavior, sexual content with non-consensual touching, and dubcon elements. Mentioned of babytrapping, emotional manipulation, and intense physical possessiveness. It features dark, explicit scenes that may be disturbing or triggering to some readers. There is an overarching tone of dread, power imbalance, and twisted affection. Please proceed with caution, and note that this work is strictly for readers aged 18 and above. THIS FANFIC IS SICK I WARNED YOU!
PSYCHOLOGICAL HORROR is a subgenre of horror that focuses on mental and emotional fear instead of physical threats like monsters or violence. It plays with the mind, making the audience question what’s real, who they can trust, and wether escape is even possible.
It started with the smell of rain and cedarwood.
You were coming home late that Tuesday — a downpour soaking through your hoodie, grocery bags digging into your fingers — when you first saw him. He was crouched in front of the apartment door directly across from yours, one box on the floor beside him, another in his arms as he fumbled with his keys. His hair was damp, dark strands clinging to his cheekbones, and he looked up the moment you stopped walking.
You expected a startled apology. Maybe the awkward glance of a new neighbor avoiding eye contact.
That smile shouldn’t have felt so warm.
“Ah, sorry—new here,” he said, standing up straight, his voice smooth and low, almost too practiced. “Didn’t mean to block your door.”
He stepped aside quickly, one hand pushing his hair back while the other balanced the box like it weighed nothing. His shirt clung to his chest from the rain, and something about the way he stood—perfect posture, open expression—made you feel like you were being greeted by an old friend, not a stranger.
“I’m Phainon,” he added, tilting his head, blue eyes catching the hallway light. “Just moved in. If you need anything… I’m literally across the hall.”
You gave him a polite nod. Smiled, maybe. And for a moment, it didn’t feel strange. He seemed nice. Gentle. Helpful.
You didn’t know then that he already knew your name.
It escalated slowly—beautifully, like a trap wrapped in velvet.
Every time you left for work, he’d be leaving at the same time. Every time you came back, he’d step into the hallway a minute later, pretending it was a coincidence. He’d carry your packages when your hands were full. Ask about your day in a voice that never lost its softness. He even offered to fix your wobbly kitchen cabinet once, and though you politely declined, the next morning it was perfectly level.
You never told him where you worked. But somehow, he knew when your shifts changed.
He knew when you bought a new shampoo — the exact scent, because he complimented it before anyone else ever got the chance. He mentioned seeing you wear a certain shirt more often, one that you only ever wore inside your apartment, on your laziest days. You didn’t remember ever seeing him look in your windows. But he must have.
Then one day, in the shared laundry room, you found your clothes already pulled from the dryer.
Your panties were folded at the top of the basket. On the fabric was a small, sticky note written in neat handwriting:
“These would look better on my floor. – P”
Your hands went cold. You didn’t tell anyone. You threw the note away. Told yourself maybe it was someone else. A cruel joke. You didn’t want to believe it was him.
But when you stepped into the hallway that night and he greeted you with that same warm smile, his golden eyes lingered a little too long on your legs.
You should’ve stopped talking to him.
You should’ve trusted your instincts.
But predators don’t rush. They wait. They charm. They watch.
And when he knocked on your door two days later with a plate of warm, soft-baked cookies and that familiar voice full of gentle laughter, you found yourself letting him in.
“Just a little thank-you,” he said. “And maybe… a chat? We’ve lived across from each other for weeks now. Don’t you think it’s time we got to know each other?”
And that was the first time you stepped into his apartment.
His living space was immaculate.
Too clean. Too organized. Not a speck of dust. Every object looked curated—placed not for comfort, but for presentation. The dark furniture was modern and cold. The lighting dim and golden. His bookshelves were lined with psychology texts, leather-bound novels, poetry collections that hadn’t been touched. The entire place smelled faintly of cinnamon and vetiver — sweet, smoky, familiar.
“You like tea, right?” he asked, already pouring from a black kettle into two ceramic cups. “I made jasmine. It’s calming. I figured it might help after a long day.”
You sat on the couch, feeling the air press just a little too tightly against your skin. You hadn’t told him it had been a long day. But he said it like he knew. Like he always did.
“You’ve been looking tired lately,” he added casually, setting the teacup in front of you. “Just thought I’d help you relax.”
You didn’t remember ever saying you were tired. You didn’t recall ever looking it. Still, you gave a faint smile. Lifted the teacup.
You barely took two sips.
The flavor was sweet—floral, with something metallic beneath. A bitter note at the back of your tongue. You set the cup down quickly. Something didn’t feel right.
And then the room began to tilt.
Your body dropped sideways on the couch before your mind could even process what was happening. Your limbs were heavy. Your muscles limp. Vision swam, doubled, blurred.
He caught you before you collapsed completely.
You couldn’t speak. Couldn’t scream.
When your eyes opened again, you were no longer on the couch.
The room smelled like him — that rich, spicy scent you used to find comforting in the hallway now clung to the sheets, to your skin, to the air in your lungs. The pillows were soft beneath your head. Your clothes were still on, but your shirt had been lifted — bunched around your chest.
And hovering above you, knees planted on either side of your thighs, was Phainon.
Stroking your body with both hands like he was worshipping a relic he’d spent years waiting to touch.
“There you are,” he whispered, brushing your hair back from your face. “I was beginning to think the dosage was too strong. But you’re awake now. That’s good. I want you to feel this.”
You tried to move. Your body didn’t listen.
His palms smoothed over your ribs, sliding under your shirt, fingers splayed across your skin with greedy slowness.
“Your skin is even softer than I imagined,” he said. “Do you know how hard it was to wait this long? Every time you walked past me. Every time you smiled like I wasn’t starving for you.”
His hands slid higher, cupping your breasts. He moaned softly at the feel, his thumbs grazing your nipples through the fabric, watching your face twitch in protest as you lay paralyzed beneath him.
“I know this looks bad,” he whispered. “But you’ll understand soon. You’ll feel it too. The way I feel. You just needed help getting there.”
His hips lowered, pressing against yours. You felt the hardness in his pants grind slowly between your legs.
“I used to imagine this every night,” he breathed. “How your body would feel under mine. How you’d sound when you begged me to keep going. But I don’t need to imagine anymore.”
He kissed your jaw, then your cheek, then lower, pressing his mouth to your throat and dragging his tongue slowly across your pulse. One of his hands dipped down between your thighs, gripping, kneading, squeezing like he was shaping you into something for him alone.
“You fit so perfectly in my hands,” he murmured. “Like you were made for me. No one else gets to touch you. No one else gets to see you like this.”
You whimpered—a weak, helpless sound. He smiled.
“There it is,” he whispered. “That little sound. So scared. So pretty.”
He ground himself against you harder, his breath hot and uneven, whispering filth against your skin as he rutted into your hip like an animal marking territory.
He shoved two fingers into your mouth, moaning low when your tongue twitched against them.
“Shhh. Just let me. Just once. I’ve waited so long.”
You didn’t know how long it went on.
You didn’t know when he stopped.
You only knew that when the drug finally began to fade, you were lying in his bed, clothes disheveled, your skin sticky with sweat and saliva and his scent.
You turn your head on your right, and he is lying beside you, brushing your cheek with the back of his hand, humming a lullaby you didn’t recognize.
“You don’t have to go back,” he whispered. “That little apartment? It’s empty now. This is your home. I’ll take care of you. You’ll never be lonely again.”
And then, he stood up, wearing his clothes, but before he left the room, he kissed your forehead and pulled the blanket up to your chin like a lover tucking you in for the night.
“I’ll make your favorite in the morning,” he added cheerfully. “Tea and honey toast, right? I remember everything about you.”
And even after he turned the lights off and closed the door behind him…
You could still feel his hands.
The days after he drugged you were quiet.
He didn’t touch you again—not like that. Not immediately. Instead, he became gentler. He made you breakfast every morning. He drew your bath, even helped wash your hair with hands that trembled under the weight of restraint. He kissed your forehead when you shook. He murmured apologies when you flinched.
“I know it was too soon,” he whispered one night, pressing his cheek to your shoulder as you sat frozen on the edge of the bed. “But it had to happen. I couldn’t wait anymore. You were slipping away from me.”
You weren’t allowed outside. Not without him. The front door was locked with a chain you couldn’t reach. Your phone was long gone, replaced by a silent house filled with his humming and gentle footsteps, his shadow always lingering just outside the frame of your vision.
At first, you thought the stress had broken your cycle. Your body was exhausted. Traumatized. Of course it would respond strangely. But the weeks passed. Your stomach grew tender. You dry-heaved in the mornings. Your body betrayed you more with every hour.
And the moment you found the test in the bathroom cabinet—new, unopened, resting on top of a neatly folded towel—you understood.
And the test was positive.
The floor fell out from beneath you. You screamed into the mirror, silent, voiceless, a twisted wail lodged behind your teeth that couldn’t leave. You slammed your fists against the counter until your knuckles bled, until the test clattered to the floor.
Phainon was in the doorway.
He didn’t look surprised.
He walked to you slowly, carefully, as if approaching a frightened animal. Then he sank to his knees in front of you, hands resting against your hips, eyes locked on your trembling stomach like it was sacred.
“I knew it,” he whispered. “I felt it the night I touched you. Like your body opened just for me.”
He followed, arms wrapping around your waist, face pressed to your abdomen.
“I did this. I gave us something permanent.”
You shoved him. Screamed this time. Loud. Ragged. But the walls didn’t answer. The neighbors didn’t knock. Either they were gone, or they were warned, or he made sure you were too far out of reach.
“I will tear it out of me,” you hissed.
And something in him changed. Just for a second. The smile faltered. His fingers tensed against your waist. Then—without saying a word—he picked you up.
You kicked. Bit. Screamed until your voice cracked. But he carried you like you were fragile glass — back to the bedroom, laying you down on the mattress with terrifying calm. And as he crawled on top of you, straddling your hips, his eyes went distant.
“You say things you don’t mean when you’re scared,” he said softly, brushing your hair back. “But I forgive you.”
He leaned closer, lips brushing your temple.
“Your body knows what it needs. It knows I’m the one who filled it. It made space for me.”
His hands slipped beneath your shirt.
“And now,” he breathed, “it’s not just about you anymore. You belong to us.”
You waited until nightfall.
Until his breathing turned slow beside you in bed. Until his grip loosened just enough. And then you moved.
You slipped from his arms and out the bedroom, heart pounding so loudly you swore it would wake him. The hallway creaked beneath your feet. The kitchen glowed faintly with moonlight. And there—near the back door, beneath a cabinet—you found it.
He always locked the door with a chain from inside. But now, finally, he’d forgotten.
Or maybe he trusted you too much.
You slipped the chain free.
Right there on the counter.
A tiny speaker, still warm, still lit.
And through it, his voice came—quiet, calm, steady.
“That’s not the way out, love.”
But he wasn’t behind you.
He was already at the front door.
“Did you really think I’d let you leave with our child growing inside you?” he asked softly. “You’re trembling. Let me hold you before you fall.”
You backed into the kitchen, hands fumbling for something—anything sharp.
“You always were brave,” he said. “But that bravery got you here. And I won’t let it take you away.”
It fell to the floor before it could reach his chest.
He shoved you back against the counter, body pinning yours, his breath hot and furious against your cheek.
“Do you even understand what you’ve done?” he growled. “You were going to abandon us.”
His hand seized your chin, forcing your gaze to his.
“What kind of mother runs away from her child?”
You sobbed, twisting in his grip. But he didn’t let go.
“No, no more of this,” he hissed. “You want to act like a stranger? Then I’ll remind you what you are.”
His hand slid down, cupping your belly, then lower—his fingers groping you through your thin shorts with a cruel, deliberate pressure.
“This is mine,” he spat. “It always has been.”
He lifted you onto the counter in one fluid motion, pressing his hips between your legs as he tore your shirt up over your head, his mouth crashing against your neck in wet, messy kisses that felt more like feeding than affection.
“I’ll remind your body who it belongs to,” he snarled, hand slipping beneath your waistband.
You cried out, nails raking down his arms, but he moaned at the pain—like your struggle only turned him on more.
“I love when you fight,” he whispered against your collarbone. “It means you still have fire in you. And I want to break every last spark.”
His fingers slipped inside you, forceful, curling with sick precision. You arched, helpless, legs trembling on either side of his hips.
“Do you feel that?” he breathed, grinding against your thigh. “Even now, your body opens for me. It remembers. It wants.”
When he finished, he carried you back to bed like nothing happened—blankets tucked around you, blood on his hands, eyes glowing with twisted devotion.
“You’re safe now,” he whispered against your ear. “Safe and warm. I’ll never let you leave again.”
He kissed your belly one last time before crawling in beside you, arms wrapping tightly around your waist, breath steady against your neck.
“Sleep, flame,” he murmured. “Our baby needs you strong.”
And as your tears soaked the pillow, you realized the truth:
Not with your body still carrying what he put inside.
You didn’t remember falling asleep, but you remembered waking up.
The stillness in the bedroom was unnatural, as if the air itself was holding its breath. The sheets beside you were cold, already void of his warmth. For the first time in what felt like months, Phainon was gone. Not in the bed. Not in the bathroom. Not humming softly in the kitchen. There was no sound, no presence. Only you. And that terrifying silence.
Your eyes darted to the bedroom door. It stood ajar, just slightly, just enough to feel wrong. You hesitated, listening for footsteps, for breathing, for the creak of the hallway floorboards that always gave him away — but there was nothing.
You slipped out of bed. No shoes. No plan. Just the kind of instinct that roared behind your ribcage like an alarm. And then you saw it — a scrap of paper resting neatly on the kitchen counter.
“Went to get your vitamins. Be good. – P.”
Not once since the day he locked you inside this nightmare.
But now, for the first time, he was gone — and he left the door locked with only the latch, not the chain. It was carelessness. Or maybe overconfidence. Or maybe, finally, fate was on your side.
Your hand trembled as you unlatched the chain and cracked the door open. Sunlight poured in like a blessing, blinding at first. You stepped outside, barefoot, nearly sobbing at the feeling of air that wasn’t filtered through him. Your legs were weak. Your body heavy. But you ran anyway.
You didn’t even make it to the stairs before you collapsed.
The hospital was white. Too white. Even the lights felt sterile against your skin, your swollen belly now weeks from giving birth. Nurses moved like ghosts. Questions came too fast. You told them everything — or at least, everything you could remember. About the tea. About the locks. About the first night he touched you. About waking up with his hands on your stomach, whispering lullabies to something that hadn’t even been born yet.
They called it trauma. They said you were safe now.
They hadn’t looked into his eyes when he touched you and whispered, “You’re my home now.”
You gave birth to a girl in the spring.
You didn’t want to hold her at first. She cried when they placed her against your chest, red-faced and wailing, fists clenched like a curse. But then her cries quieted. Her tiny face turned toward yours. And you saw it — that familiar shade of her eyes.
They gave you a new apartment. New address. New number. You chose a quiet neighborhood where no one knew your name. You started over with a child clinging to your hip and nightmares pressing against the back of your skull. You barely spoke. You watched every window. Every hallway. Every man who stood too long near a playground.
Phainon had disappeared without a trace. The police believed he had skipped town or died. That he was a ghost in the wind.
Monsters like him didn’t vanish.
Your daughter turned three on a gray, humid day in July.
She giggled in the hallway that evening, chasing shadows that didn’t seem to have a source. You brushed it off at first. Kids had imaginations. She spoke to her stuffed animals, lined her dolls along the windowsill and whispered secrets in their stitched ears.
But then, one night, you heard her laughing — softly, sweetly — in the dark.
You rose from bed, half-asleep, trudging to her door with a protective instinct you hadn’t felt in months. But when you opened it, she was sitting up in bed, facing the window.
The room was empty, yet the air felt thick with presence.
“What are you doing, baby?”
She looked over her shoulder at you with a smile too wide for her small face.
“Daddy says you shouldn’t be scared.”
Her voice was innocent. Soft. But it cut through your spine like ice.
“He talks to me when you’re sleeping. He said he missed us.”
You rushed to her, pulled her into your arms. Her body was warm. Real. But the chill in the room didn’t leave. You checked the windows — still locked. The closet — empty. You held her all night, too terrified to let go.
The next morning, you found it.
Black cord. Carved obsidian charm. You’d seen him wear it every day, from the moment he first moved in across the hall. You destroyed it months ago — threw it into the disposal, watched it break apart in sparks and metal. But now it was back.
Nestled in your daughter’s sock drawer.
You screamed until your throat broke.
A different state. A new name. Again.
You dyed your hair. You changed everything.
And for a while, you felt normal. You smiled again. You took your daughter to the park. You started to believe he was gone — a nightmare that couldn’t cross the border of memory.
Until one night, the baby monitor crackled.
You hadn’t used it in years.
Then a voice emerged. Low. Familiar. Close.
You ran to her room — she was asleep in bed, peaceful, untouched. The window was locked. The closet empty.
But on the wall above her crib, drawn in red crayon, were three words:
Now, at night, you lock every door.
Your daughter hums sometimes. Quiet little songs you don’t remember teaching her. She stares at nothing when she thinks you’re not watching.
And sometimes, just before dawn, when the house is quiet and you think you’re alone, you feel it.
Warm breath on your neck.
The faint weight of a kiss behind your ear.
And the whisper that keeps you awake long after sunrise:
“You were mine the moment I touched you… and you’ll be mine again.”
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