you're a hashira. tonight you were sent on a mission to kill a demon in the nearby town. it was a little difficult, but you got it done anyway. while on your way back, you heard a few voices yelling in pain, you of course went to go see who it was and you saw three demon slayers. 2 boys and 1 girl, who looked no older than 15. they were all a little beaten up and the girl ended up losing her katana