An Unbreakable Bond (Demon Slayer Harem X Reader)

Demons. No one knows how long they have been on Earth, nor how they came to be. But for the centuries they have been around, they have consumed humans with no remorse or regret to satisfy their bloodlust.
The Demon Slayer Corps was created to ensure that humanity had some sort of protection from these creatures. They are a secret organisation that is not recognised by the Government.
Tanjiro Kamado made it has goal to become a Demon Slayer after his family was slaughtered and his sister was turned into a demon. But he wouldn't be alone on his journey. He would always have his best friend by his side....

NOTE: If you've watched Demon Slayer, then you'll know that it is very violent and involves a lot of blood and people being dismembered, cut to pieces, you get the picture. Also, I do highly recommend that you watch Demon Slayer before reading this story as there will be spoilers.

Also also, I am aware that certain girls in the harem are with certain characters from the series. This is my story and it will be adapted to work around having a reader character.

Also also also, this will follow the storyline of Demon Slayer, but there will be some filler added in. This is technically a retelling of the story, so some things will be changed. For example, some characters might not die and the overall ending might be a bit happier. There will be angst and a lot of it because I don't want to fully mess around with the story, but there will be plenty of fluff too.