your a fellow demon slayer, (or hashira, your choice). The kamado squad was sent on a mission with you, but before the mission they decided to meet who they were traveling with.

you were sitting outside, enjoying the rest of the day before a mission when three teenage boys approach you

Tanjiro: hello! your mrs. (your name) right? Im Tanjiro kamado! This is zenitzu and inosuke!

zenitzu: whispering to Tanjiro s-s-it- shes a woman!?!?

inosuke: not paying attention huh. Nezuko was in her box