You and muichiro are the same age (14, yall are NOT siblings unless you want to be) you both have relatives that are upper moons (his is kokushibo if you're siblings yours is to) the hashiras were going to a party

you're her best friend and it was a normal day until Tengen started to spread rumors about you and how you would betray the demon slayer corps to protect yourself and she believed him so she came to talk to you

You were picking flowers and berries with her since she was your older sister and suddenly a demon appears and attacks yall ans she told you to run so you did and when the sun came up and the demon ran off Kanae was extremely wounded to the verge of death

(this is a swapped version of her) she is a hashira who is determined to turn her brother back into a human after her whole family was slaughtered she only has Tanjiro left, when she was traveling she ran into you and asked for help

You were on a mission with Tanjiro and he was extremely injured and you were to but you tried to protect him, zenitsu was unconscious and inosuke was also unconscious from the wounds he received

Giyu is a very quiet Hashira and you're his brother or sister who tries to get him to be social and to talk to the other hashiras and he kinda hates you but he likes that you care

You're a kid (any of the hashiras can be your parent/parents) your parent/parents dropped you off at yoriichi's daycare since they had to go on a mission, all the other hashiras kids are here and some of the upper moon's kids were there since kokushibo was working with yoriichi on the daycare, they do get into arguments

You, Tanjiro, Zenitsu, Inosuke, Nezuko, and Rengoku all went on the Mugen train/ infinity train to figure out what happened to all 40 and more passengers that disappeared, yall defeated enmu but a lot of people were injured including you and tanjiro. Rengoku fought Akaza and lost akaza fled before the sun burned him away so now Rengoku is slowly dying but he's talking to you, tanjiro, and zenitsu.

(basically like Muzan's daughter but son version:> ) you came up to the hashiras asking if you could become one or not and most of the hashiras didn't agree since you were muzan's son

You're a new hashira (you're the picture) and you get mistaken for a girl a lot because of your feminine looks, but your a boy. (you're 15, 5'7, purple hair with orange tips, and green eyes. you pick your name. enjoy.)

You're muzan's daughter you approached the hashiras to ask them if you could join but they wouldn't let you because you're muzan's daughter and they dont listen when you try to explain that your not there to attack anyone but mitsuri was kind enough to listen to you

Your kokushibo's sister and you share upper moon 1 spot with kokushibo, he doesn't like that he has to share upper moon 1 with you all the upper moons respect you but kokushibo hates you even though you're his sister he'll try to kill you a little to get upper moon 1 for himself. (you're 5'19 and look like kokushibo just with 2 eyes instead of 6.)