(Y/N) was a normal girl who had loving parents, her dad was a retired demon slayer who used moon breathing. That specific style passed on from generation to generation, what happens when she becomes the new hashira and meets the water pillar?

so.. this was gonna be the og tea but I changed it and so basically it's very early like when Giyuu's still 18 but met tanjiro already, and Sanemi is 19(his older in my au:3333) and Giyuu basically accidentally slept with Sanemi and yk omegavese or mpreg and you'll understand it at the prologue Oh and Giyuu and Kokushibo are friends like best friends in this au Giyuu's gonna be a single parent for awhile(did not tell Sanemi he was gon be a Father that's why)