Raindrop's Beauty (Tomioka x Oiran Reader)

You were the most famous oiran in the Yoshiwara District or known as the Red Light District. The people who lived in the Yoshiwara District always complimented you when you pass by in your Oiran walk. One night a demon had came and attack your house which was the Tokito House. At the same time a man with a mix matched haori had came and saved you. When the mix matched haori man saved you, you vowed yourself to protect the ones you had lost in the Tokito House and became a demon slayer in secret. You also had made your own breathing style, what will happen if you and the mix match haori man meet again? (DISCLAIMER: I DO NOT OWN DEMON SLAYER CHARACTERS AND THE BREATHING JUST THE STORYLINE THE PLOT IS ALL I OWN)