(Spoilers)
Nezuko: After defeating Muzan and the other Upper Moons Tanjiro became the next King Of Demons with Nezuko by his side as well as the other Hashira now becoming the next Upper Moons. You and the other surviving Demon Slayers tried to stop it but no it was to late the damage was all ready done. You and the other surviving Demon Slayers were captured and brought up to Tanjiro and Nezuko. They were sitting on a throne looking down at you giving you a disappointing look. You and the others were then force to kneel down in front of them. Then Tanjiro spoke.
Demon Tanjiro: Well if it isn't my old friend Y/n. You have no idea how happy me and Nezuko are to see you right now. Oh how I wish we could have seen each other in a very different circumstances but oh well. Really Y/n you and the others have been giving me and my fellow Demons a very hard time you know that, oh well. Nezuko~do you have anything to say to your dear lover~?
Demon Nezuko: Actually I do brother. Y/n sense you have cause me and my brother a hard time lately I think you should get punished. First punishment that you well receive is that your fellow Demon Slayers shall be executed. Moon Demons feast~.
It was horrifying you saw the once hashira now the Upper Moon Demons killing and eating your fellow Demon Slayers. You were screaming and was about to stop them until you felt two very strong arms holding you back and making you see the on slaughter of your friends being eaten alive by the Upper Moons. You were crying, yelling, and trying to reach out for them but couldn't. After that you broke down crying and screaming.
Y/n: *crying* WHY WOULD YOU DO THAT THEY WERE OUR FRIENDS FAMILY HOW COULD YOU I HATE YOU I HATE YOU. *crying* I JUST WHY, DIE DIE ALL OF YOU BURN IN HELL DIE!!! *crying even harder*
Sense that day you were turned into a demon as well and lost everything, you lost your friends, your family, and once lover. You tried to escaped as well as trying to assassinate Nezuko and Tanjiro but failed every time. Some how Nezuko was always one step ahead of you. You don't know how she knows she just does. When ever she stops you she would punish you and break you into submission. Soon you became nothing but a emotionless pet to her and she loved it.
Shinobu: She was starting to scare you ever sense she became one of the Upper Moons. She started to control you demanding you to do things that you don't want to do. It was hard you wanted to say no to her but every time you do so she would threaten you by saying.
Demon Shinobu: If you don't do this then I'm going to find Rui and torture him right in front of you. Do you understand my love~?
It was so hard but you had to lesson to her she even forces you not to leave her side at all. Being with her is like living in a nightmare were you could never wake up.
Kanae: All she ever wants with you is your attention. She would do anything to get your attention. Like kill your friends, family, or random people you passed by and say "hi" to. She even makes you watch. She is terrifying. You tried to stop her but when you do she would force you to go to her room and wait. When she comes back she would bring a terrifying Marcus into the room and say:
Demon Kanae: Okey lesson here my love if you don't want me to turn our son Marcus into a demon then you better do what I say, understand my love~?
With that you would agree and be brought back to the room so she can continue with her torture.
Aoi: She would just chain you up on the bed and come back with "food" and force you to eat it, but every time you recess to eat she would force it down your throat and make sure you eat it. And if you try to fight back she will torture you and threaten you that if you don't stop she well ask Tanjiro to kill your brother Zenitsu. And that we'll make you stop. She will also manipulate you by saying that she loves you and that she is doing this for your own good and that their is no one coming for you that she is right here for you. That well just leave you in nothing but a broken doll that she loves to play.
Tamayo: She has all ready broken you now your nothing but her play toy. She would enter your guys room and see you laying down on a mattress with chains holding you in place, with no emotion in your eyes, with your kimono open to see your naked body, with scratch marks, and bites marks every where. She would lay right next to you and stroke your fox ears and play with your tail. And that's when she would have her way with you. She would then fall asleep on top of you not pulling out. She would have a good night sleep while you stay up all night looking at nothing but the darkness.
