According to rumors, it is a very dark place surrounded by layers of Uqil forest, which neither sunlight nor moonlight can reach. It is a town where almost all the monsters, monsters and monsters from the beginning of life to the present are gathered and lived. This is Qingcheng, also known as the capital of demon spirits. "I" living here accidentally saved Medusa who was being hunted. Even though he is his enemy as a human being, he is still unwilling to betray him. So he could only cover up others' eyes and take care of her while helping her find a way to unlock the seal on her body. In this world, there will always be people who are stupid and people who are willing.