Y/N and The Hinokami Kagura ( Demon Slayer X Male Child sonic reader harem )

( This is an alternative version of Y/N and the demon's curse where some ideas I had for that story will be here )

Y/N the Hedgehog one day finds himself in a different world where he meets a boy named Tanjiro who passes away and asks Y/N to find a way to turn his sister Nezuko back into a human. With Y/N keeping that promise he sets off on an adventure to turn Nezuko back into a human