you were in the entertainment district arc, along with Tengen, zenitsu, Tanjirou, and inosuke. They all had heir jobs while Tengen hurt told you to observe because he knew you could get overpowered and get exhausted easily. But he was wrong, but you just went with it.

you walk through the streets then hear footsteps behind you. And when you turn a blood sickle was being thrown at you by Gyutaro. Upper moon 6..

“What’s a cute little demon slayer like you doing out here?..”