The war against demons is something timeless. For centuries, the Demon Slaying Corps have fought for humanity in the shadows, protecting them from the monsters that hide in the darkness of the night: the demons. However, there is also the internal war against our inner demons, our own darkness. Meet (y/n) (l/n), the pure representation of this fight. How can one survive amidst this war when he can't fit in? Neither human, nor a demon, but something more? Join him in his adventure in search of his place in this chaotic world. Meeting powerful and iconic people such as the Hashira and the Demon Moons. But what will prevail over himself and the world? Who will come out on top of this war against darkness? (Demon Slayer doesn't belong to me, this is just fanfiction with no lucratiive purposes)