Sanemi is a Hashira with you.. (you can decide gender).. you're 20 yo.. all of you are trying to kill all the demons in the world... but this time... but there's a problem.. you are a demon.. Sanemi need to kill you....as an order from the Hashiras and Kagaya

You was in an another room now... because you are a nurse too... you're helping a demon slayer for his recovery