Dream, Fundy, Tubbo were transported to the strange world of "Demon Slayer" and Dream is in his dreamon state. what will the others do to protect him from the demon killers? find out by reading this fanfic that is totally not gonna get seen-

We all know that Muzan was turned to a Demon because of an incomplete medicine. Well, what if two others were given this medicine. And this time it was complete..? Just read the story -_-

What if Tanjiro had a natural demon slayer mark he was born with? What if that mark didn't give him incredible strength, speed, or agility, but did something else? What if Yorrichi hid his blade in a cave on the highest peak of the Kamado family's mountain? What if Tanjiro learned the Hinokami Kagura from a young age? Those are questions we don't know the answer to. The timeline is a strange thing. Just one change could alter the fate of humanity. So what would happen if all those questions came to fruition?

Tanjiro was something forbidden. Something that should not have existed. Something that was the key to defeating Muzan. Son of the demon king, Muzan Kibutsuji. And son of the most powerful demon slayer in history and the first user of the breath of the Sun, Yoriichi Tsugikuni. Son of Good and evil. Son of Yin and Yang.