A demon boy was chased by humans and fled into Beihai. He was rescued by a little fox Shen Qin. They soon became friends. However, Shen Qin's mother felt that the demons were too dangerous, so she put poison in the food Shen Qin gave the boy and drove out of Beihai. Hundreds of years later, the demon boy became the contemporary demon king. When they attacked the human world, the two met again...
Intention: Fall in love and kill each other