Sabito x demon reader

So that why he looking for you

(Inside of sabito's dream)

Sabito pov:

I woke up to find myself in a dark room I going up and start walking around but didn't get far. I look down at my arm's and legs and feel some metal chains on them. "What the-". I was cut off my thoughts by the door opening. I look at door and see Muzan and he was holding a chain. He pull the chain and see YN cover in blood. "YN!!! WHAT DID YOU DO TO HER"!!! I yelled at him turn to break free from the chain. "Yn here is very special demon you see". Muzan hold his hand up and dig his hold hands in Yn's stomach. "Nooo"!!! I yelled still trying to break free. Muzan pull his hand out Yn cough up blue spider lily. "She can make blue spider lily when she injured enough so she can heal herself but only for the Sun that why when you save her from the Sun she didn't die fast like all demon's do but now she just cough them up, she supposed to be grown them in the ground NOT cough them up and i have to see what wrong with her and I need you and everyone else to say out of my away so I can show her what she can really do with her powers and I need you to help her to lose control". Muzan look at me with a blank face. "What Makes you think I will help you huh". I had a bad feeling about this after I said that. Muzan walk up to me and grab my arm and rip it off. "AAAAAAAAAAAAAH". I hold my shoulder where my arm ones was. "Look at that yn all of this blood is just for you". I look at muzan who looking at Yn I turn my head at her and see she was in turn from. (Your from is you just 6'5 tall and you have 6 tails and the mark's under your eyes is glowing purple and your eyes is your eyes colour but brighter like see in the dark brighter ). My eyes widened and before I said something Yn jump at me and I woke up in cold sweat. I turn my head at the window and see it still night out. I look down and see Yn still sleeping. "So that why he looking for you I promise you I help control yourself".

(Next day)

Sabito pov:

I was training with Giyuu dodging his attack while Yn sitting on the porch with nezuko. I dodging Giyuu attack and hold my sword up and hit him with it. Giyuu fall in the ground holding his head. "Did you have to hit me that hard". I said sorry and help him. We sit down where Yn and nezuko was taking a break. I was talking to Giyuu about the dream I has last night. "I think Muzan knows that your Yn's weakness". Giyuu look at me worried. "But why would she attack me and not muzan"? I look at the sky still don't understand why she will attack me. "I believe she DIDN'T attack you she jump at to pull you away from him". My eyes widened. "Now I get because yn saw me bleed before and she pull me away from the danger and try to kill th-". I was cut off by someone walk up to us and say."no i believe that she will kill you and everyone else so it's for the best if you kill her now". Sanemi said with that stupid look on his face. "I'm not going to kill her just so you can happy sanemi". I feel a hand on my back I turn my head and see yn shaking head no. I smile at her and turn back to sanemi. "Don't forget that she not only a demon but Muzan's daughter so it be best if she was dead". Sanemi was getting to pull his sword out until.

BOOM

A lightning had struck down next to him. I look behind me and see Yn's hands had purple lightning going up her arms. I noticed that Yn was getting bigger. I stand up and pull her for a hug trying to come her down. "It's ok yn he just want to see you lose control that all so please come down and relax". I feel her body turning back to normal. I pull away smile at her and turn to sanemi. "If you want to fight so bad I give you one just leave Yn out of it". I feel someone grab my arm I turn my head and see Giyuu. "Don't do it he just want to make you mad that why he went on Yn and not you". I close my eyes trying to cool down. I open my eyes again and see sanemi had left. I turn around to Yn and ask her how she do that she didn't say nothing. "I guess I let it go for now".

(At night)

Still Sabito pov:

Me and Yn was getting ready go on a mission about some demon. I turn to yn seeing that she is ready. I grab her box and walk out.

(Something later)

We came up to village but no one was here. We start looking around hoping for find someone. I look at yn who was also looking around and her ears pop up and turn her head at something. "Do you hear something Yn". She nodded and run off I follow behind her and see a house up ahead. Yn had stop in front of the house with me next to her. Yn close her eyes what I guessing smelling the air and pull her sword out. The door to house open and a little girl came out over in blood and look up at us. "Please help the demon it attack me and killed my family I was managed to get away from it". The little girl said. I was get ready to walk up on her until Yn jump on her. "YN NOO SHE NOT A DE-". I was  cut off by the little girl laughing. "Ahahaha Oh wow and I thought I could trick you but i guess you smart then you look huh". The little girl changes into a demon pushing yn off of her. "So this demon can shape shift good thing Yn got to her before I did". I pull my sword out and run at the demon. The demon dodges my attack and jump to where Yn was. Yn ues her sword at the demon and cut her arm off. "Ha you should went for my hea-what my arm it's not growing back". The demon arm didn't grow back why? I look at yn and see her eyes is now red. I saw my charge and run up to the demon. "Oh on you don't". I hear a voice behind me and they pull me away from the demon in front of me. I look behind me and see another demon. The demon look at me and look up I saw his eyes widened at something. "That girl she-she-she THE DEMON KING KID". The demon that Yn cut her arm off look at Yn with fear in her eyes. "WHAT-BUT SHE CAN'T BE SHE LOOKS NOTHING LIKE HIM AND SHE TO WEAK". I look at demon who pull me and cut his head off but he dodged. The demon went behind me with me know and pin me down. "Hey if bring that the demon king daughter back to him then he will make us a upper moon". I broke free from the demon and swing my sword at his neck and cut his head off but not before he dig his hand in my shoulder. I turn to where yn was and didn't see her just the demon that she killed. I feel something on shoulder turning my head I see Yn look at my shoulder.
"Hey it's ok look I know somewhere we can go and patch up". I grab hand and ran to the rest home.

(Time skips)

Still sabito pov:

I knock on the door and Hisa came out in welcome us in. I got my shoulder patch up and we eat some food they gave us but since Yn is a demon now they have to give her raw meat. It's was time to head to bed now I lay down next Yn who was waiting for me to lay down. They try to get Yn in different room but I told them I have to keep in eye on her in all time. I got in floor and lay down next to Yn. Yn hold her hand to me and I grab it. I try to get her take that bamboo out of her mouth but she didn't want to. Soon yn fall asleep I fell asleep too. "So all the demon's know that muzan have a kid and knows they may be looking for her".

(HOLY CRAP THIS IS LONG 1544 WORDS WOW AND NEXT TIME IT MAY JUST BE SABITO'S Dream but something special)