Its a normal day for the hashira they are at a meeting, but wait, we're is they're water pillar giyu tomioka, nobody has seen him since his last mission.

your muichiro so genya got yelled at by his brother (sanemi) and you tried comfort him but he yelled at you, your ears are sensitive.

so this is alive sabito and demon giyu au. so sabito is the water hashira, and he's been hiding giyu/you, but one day he accidentally left the door open so giyu/you left and the hashira's found you burning in the sun.

You find Tanjiro in a forest injured, you take him and the box he was with to your house, when he wakes up, he will think your a demon. About you: female, black silky long hair, red eyes, black wings and black marks on your face. you can be a demon slayer or hashira add enyone you want also you were walking with another demon slayer.