A food delivery guy wakes up as a tiger after dying, and eventually becomes the Demon Emperor.
"You're just a little tiger demon. What do you want to do? What can you even do?"
Zhang Hao waved a hand, and wild rats appeared all over the mountains behind the city, and along the riverbanks, behind the old man across from him.
"You can't kill me. I may not be able to turn rivers upside down, but I can make these waters flow backward and wipe out countless bloodlines. If you can't bear the consequences with me, then release my people and my friends at once."
Zhang Hao later learned that his father had died from the start, and that his family was actually a major clan of villainous demons that had failed to seize power.
There is no System in this book, and the battles can be won or lost.
