After the war between humans and monsters thousands of years ago, monsters lived in the mountains and did not want to argue with humans. However, humans repeatedly broke into the monsters' territory. The monster leaders negotiated with humans, "We allow you to come to our territory, but you need to pay corresponding tributes every year." There are many treasures in the monster's place, and the tribute is not worth mentioning. "Okay, we promise you."
"Please sign and stamp this." After the agreement between the two parties was reached, there was peace for many years until the dynasties changed. This matter was passed down from emperor to emperor. The emperor of this dynasty hated feudal superstition the most, so he abolished this article and added a new law: kill a demon and bring it up to see me, you will be rewarded heavily!
The war was about to break out. Humans gathered together to form a team to eliminate monsters, and monsters also gathered together to attack Xiashan. The war lasted for many years, with heavy casualties on both sides. In the end, humans had no choice but to compromise on the second agreement, and were willing to survive with the monsters.
Nowadays, monsters in society have also established laws like humans. Humans have laws and monsters have rules. This has created the current "peaceful coexistence"
Intention: I want to give OC a complete story