Demon Slayer: the Strongest Ibaraki

I, a dead fat nerd from the Great Celestial Dynasty of the 21st century, took a nap and entered the world of Demon Slayer: Kimetsu no Yaiba. I looked at a ghost in front of me that kept making noises at me, and then looked at my plain hands with a confused expression. I saw that my hands were filled with purple-black hellfire. I smiled and shouted flatly at the ghost: Waga*gna, Kajimarai. Looking at his soul being burned by my hell's will-o'-the-wisp, alas, I am invincible and can kill a ghost, all of them are so simple and unpretentious. The content is purely fictitious. If there is any similarity, it is just that. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.