What would happen if the fastest thing alive ended up in the demon slayer world? This is what I believe would happen, it's starts at the end of the Mugen train arc Sonic the hedgehog is owned by SEGA Demon slayer is owned by koyoharu gotouge Slow updates

A New threat has been Reborn and threatens the very balance of the Multiverse and Error is right in the middle of it. Will he be able to stop it? Or will he succom to it's wicked intentions? All Art and Cover art was created by Natt/StonsandPeaches and myself