I recommend the following e-books about the underworld to you: "I am a Maoshan Taoist": In the year 25 of the Republic of China, the underworld world coexisted with demons and ghosts. The protagonist was a Maoshan Taoist who could subdue demons and devils. "Daddy's Money, Mommy's Take You": The female lead was a poison doctor. Her identity was the heir of the underworld family, and she fought hard in the underworld world. - <<Flower Protector>>: The protagonist is an abandoned young master who grew up in an underworld family. He has a powerful cultivation inheritance and becomes a genius of the underworld, embarking on a heaven-defying path. I hope these books can satisfy your reading needs. If you want to know more, feel free to come to me~