your a hashira like the rest of them. Although you were the weakest. Weaker than shinobu. You wanted to get stronger but you just can’t it’s like something keeping you from getting stronger. You heard about the meeting where mitsuri and muichiro manifest there mark and how nezuko conquered the sun. You realised that your strength might not be enough in the final battle and went to tamayo. tamayo Had a bit of nezuko blood and said this would turn you into a demon but there was no going back. You agreed and decided to take it tonight

later that night you drank nezuko blood and fainted. It’s been a few hours and the hashiras finally come in

Shinobu: are you okay you’ve been gone for awhile-

Mitsuri: omg- SHES/HES A DEMON! the other hashira ran to the room mitsuri screammed. But your demon form was like nezukos small and cute

Obanai: where!?

Sanemi: sorry but I’ll kill them! about to kill them then

Shinobu: wait there’s a letter! she grabs the letter and reads it the note. Dear hashira I’ve turned into a demon due to my weak body. I won’t be a human anymore and yes I know the consequences. But I hope my demon self will help way more Muichiro: so she/he a demon now?

Giyu: seems like it

Sanemi: that’s great being sarcastic

Gyomei: enough! Let’s at least not kill her.

Obanai: there a demon now. How are they gonna be any help?