In his previous life, he was the god of the demon kingdom, but fell into the mortal world because he was betrayed by his beloved. In this life, his name is Du Chen, and he is just an ordinary high school student living in this small southern town where spring is like all year round. One day, a mysterious phone call with the number 0000000 changed his life - "Your closest relatives are in the demon country, you will be born in the human world and fight in the demon country!" With curiosity and passion, in order to find his missing mother and his never-seen father, Du Chen We have embarked on the unknown demon road, the demon-slaying academy on the giant tree, the dean who is as crazy as a mad dog, the teacher who is extremely erotic, the powerful but naive senior, and the mysterious assessment that is coming. Let us follow Du Chen's footsteps to uncover the veil behind the fog.