tanjiro, inosuke, and zenitsu were dressed up as girls by tengen uzui and you just happened to be in the district, you were walking down a street minding your own business' until you see a yellow haired boy with pigtails yelling at a very tall muscular man.

"oh stop complaining kid you need to attract the demon, plus now you look flashy!" as a fellow hashira you recognized tengen and proceeded to walk over to him.