Doomsday Emotional Trading System

[Zombie][System][Science Fiction][Upgrade] It started with mountains burning down one after another, followed by flooding in city after city, and finally the temperatures getting higher day by day. In such a cycle of disasters, human beings finally couldn't withstand it, and many people died and came back to life. These reborn people have all turned into zombies. The world has begun to enter another civilization, this civilization is called the end of the world. In the end of the world, humans and zombies are independent of each other, and they can gain strength by killing each other. The biggest difference between humans and zombies is that humans have emotions, including jealousy, fear, sympathy, and worship. One day the end of the world is coming, and in order to survive, you need to give your unique human emotions to the devil in exchange for the chance to live. As you exchange more and more emotions, you become stronger and stronger. As you get stronger and stronger, you get farther and farther away from people and closer to zombies. Later you discover that the Demon King is actually just a system of a higher civilization. It turns out that when civilization develops to its extreme, human beings, like zombies, will no longer need emotions. The emergence of zombies is nothing more than the salvation of another cosmic civilization.