Demon Slayer Blade (DSB)

This is the world of KRD. There are two races: demons and demon hunters. There are also ranks. The strongest demon hunters are the Hashira. Tengen, Rengoku, Sanemi, Giyu, Obonai, Shinobu, Mitsuri, Tokito, and Gyomei. They are the Hashira. They train newcomers. The head of all the Hashira is Ubuyashiki.

There's also a race of demons. The most powerful are the upper moons: Akaza, Douma, Kokushibo, Hantengu, Gyokko, Gyutori, Daki, and Nakime. The most powerful demon is Muzan.

Come up with your own plot (I'm lazy). You could be a demon, a novice hashira, or a new pillar. You could be an ordinary person attacked by a demon and saved by a pillar. Good luck, anyway.