S High, an ordinary high school in City B, was built on the outskirts of City B. It was originally a lush forest and was one of the main battlefields in the war between gods and demons thousands of years ago.
Over the course of thousands of years, B City gradually developed into a large industrial city. The forest was also pushed down and developed into a community for human habitation. S High was built on the sensitive location where the goddess of frost sealed the passage for human beings.
With the passage of tens of thousands of years, the power of the seal gradually weakened. The owner of the seal, the Goddess Frost, gradually faded away from her disappointment in human beings because of her happy marriage life. Her last words before her death were that when the seal became loose, Zhuyin should help her descendants to strengthen the seal.
Therefore, in this year's S-high season, humans and demons are mixed together. In order not to affect the life of the secular world and attract the intervention of secular official forces, cultivators, supernatural beings and demons have reached an agreement not to harm human lives.
S Gao has entered the first era in history where transvestites coexist peacefully.