Sun Yan, the unworthy son of the Sun family, was once a talented Taoist priest.
Xia Qian, the daughter of the mythical beast Bifan, is a female monster who broke into the human world.
The two met by fate and jointly wrote the "Record of Oaths" to fight against the evil monster Emperor Hong.
The demon world and the demon-killing family join forces for the first time. Who is the winner?
Who is Di Hong? What's the story between him and Xia Qian?
Compared with humans, only monsters are more affectionate and righteous among all things in the world. They live for love and die for love.