Demon slayer Blood Moon Zero

This story is about is about Y/N a kind hearted Boy at in which would become a powerful demon in and become a threat towards humanity. If not stop in time he will make humanity cease to exist. The slayers along with Y/N closest friends wishes to stop him and bring him back to them either returning his humanity or kill him before to free his tortured soul. Though that's what THEY said and that's what Tanjiro and others wished to believe. Deep inside Ubuyashiki knew, The Hashiras knew, Rengoku knew, and soon Tanjiro would face the truth.

Y/N and the demons knows the things he's doing and Muzan knows why. Despite knowing He let's him live not only he's an extraordinary demon towards him. Y/N is the most closest to him as he shares his desires despite being so kind hearted to humans and demons especially towards those hashiras. As for his 2 friends though is a different story as their bond is beyond what Muzan had ever seen not a thread but a chain. A chain connected Together in which not even the gods break as he believed. This chain is what shows Y/N who he really is despite having strong connections with others.

Y/N isn't someone pure evil like Muzan nor kind hearted like Ubuyashiki yet in a way he's similarly towards Tanjiro only difference is how he's a demon instead of a slayer. Y/N doesn't Desire any wealth nor any other form of fame. He wanted power but not to rule. Just to live at least that's what the hashiras believe for the time being. Their is still more not yet shown about him. It's only a matter of time until Y/N shows what he's truly up to. Weather it's bad or good it's the reason why he's truly a demon with a human heart.