You were the new flame Hashira, doing missions like usually untill you've head of a suddem disappearance of demon slayers at the Nagutamo mountain.

You were sent to check out what threat was in the forest. When you entered, you saw a demon finishing up one of your fellow slayers.. She turned to face you as she licked the blood of her lips.

"Oh my, oh my! A new one.. Who might you be, hmm?"