Uzui Tengen x reader

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House of many doors, many demons, a fortress. The infinity fortress. Long corridors and many, many doors

"Come on d/n" muzan said

"Call me y/n!" I yelled

"Fine" he grumbled "brat"

You followed behind the male as he changed, morfed into a woman.
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He discarded some lower rank demons made one promises to kill the child with hanafuda(idk if I spelt that right) ear rings. This process sparked something in you, something that was always there just not... there. Your nails were sharp, sharper and longer then you remembered. You stare into muzan's face, studying the male, your eyes squint as you searched the mans face for somthing. He pushed a glass towards you

"Drink" he said in a demanding tone

"Um" you look at the ruby colored liquid, the sent was interesting

"Come on" he said standing up and walking towards you

You looked up at him, his hand was on your back and he took the glass in his hand. His fingers ever so gracefully holding the glass up

"I wouldn't want to force you" he said looking at you e/c eyes he helt it up to your lips and the crimson, thick, liquid ozed onto your lips. You parted them slightly the blood pouring into your mouth, sliding down your throat your body twitched you gazed up at muzan again.

"Your looking different" he said "You look more like your drawings" then a small demon came into the room she placed papers on the table inwhich looked like you, she had long sharp nails, and long fangs. Besides those differences she was you, wait. You didn't notice before but she had a marking on her leg, on the was like a sideways zigzag. It wrapped around her thigh. The a feeling of someone lifting up or kimono shocked you, you smacked their hand with a extreme force

"EH! Who said you could touch me like that?!" I said

"That actually hurt" muzan said amazed "but I need to make sure"

He ripped the fabric showing your scar. A sideways zigzag..

"You have to be her! My queen" he said in admirement

You looked at muzan crouched by your legs 'Holly shit' you thought, you married a demon slayer but with all this information and new memories sparked alive a fire.

"What are you doing to me" you stated as you felt your canines grow, you touched you mouth and your nails were even longer. You stood up and your eyes hurt your pupils turned into slits, you felt the change it was weird. Your vision was way better.

"Just making you..better" he said standing up and walking closer to you, he brought his hands to your's and intertwined his fingers. His nails pressed into the back of your hands.

"D/n-"

"Y/n, address me as y/n" you said

"Y/n" he rolled his eyes "I want you to rule with me, Please"

"Muzan, I-I can't" his nails were digging into your hands but it felt only like a pitch "I'm not the demon you think I am"

"Yes you are! You are d/n, you destroy villages, destroy cities" he said but this words didn't match the you. Who was D/n? It wasn't you.

Tengen pov
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"What the hell do you mean!?" I yelled
"My wife was taken by muzan himself, I am going to get her back! I do care if you don't want me to!"
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A/n: haha another short chapter but don't worry I'm just adding in a little spice this is still a Uzui x reader. My mental and emotional health are hanging on by a shred and I'm 🤏 close to stopping this book entirely, so I apologize if I don't post in a while.