Gu Hanzhi and Lin Wanying have been good friends since elementary school. Later, they chose to separate due to some things in their freshman year of high school. It was not until their sophomore year that the global temperature rose and the earth's temperature was no longer suitable for human life. People were miserable. At this time, a strange rule theory appeared. If people can survive this strange rule rule, then they can also survive in real life. But is this really the case? What exactly are the rules of Rules and Monsters?