I Developed the Are You Dead Yet? App, and My Customers Are from the Underworld

Also known as I Am Invincible in the Mortal World, the Underworld Begs Me to Become Its King, Developing the "Are You Dead?" App, and Both Realms Are Going Crazy.

Cao Feng develops an app called "Are You Dead?" His business with the living has yet to get off the ground, but the King of Hell approves of him, making him the spokesperson between the worlds of yin and yang.

Ex-girlfriend's dad: Feng, help me get revenge, and I'll visit my younger daughter in a dream and get her to pursue you.

Ghost of a fallen anti-drug officer: Brother, the people I've let down most in this life are my wife and daughter. If you let me possess you so I can see them and fulfill my final wish, I'll teach you everything I learned in life.

Cao Cao: Little Feng, I'm your great ancestor... Burn some good weapons for me, and I'll lay the foundation for an empire for you in advance.

King of Hell: A rebellion would be too much trouble. I'll just abdicate and let you take my place!

Cao Feng: I'm invincible in this world, my name is absent from the Book of Life and Death, and I possess countless riches and beauties. And you want me to hurry up and die?

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.