After settling the matter of Wu Mountain, Lin Bai and Luo Ningyu went to the northern region to join the organization behind Luo Ningyu, the Heaven and Earth Society.
The purpose of the Heaven and Earth Society was to fight with the demons. After Lin Bai joined, he also learned that the demons had been coveting the human world. Incidents like Lin Bai and Wu Mountain had occurred many times in this world.
At this time, the Winter Kingdom within the ten countries of the northern region was invaded and infiltrated by the demons. Lin Bai and Luo Ningyu entered together, pretending to join the Winter Kingdom in an attempt to serve the demons. During this period, several generals of the demon race and the human race members began to doubt Lin Bai's identity.
