1. Nirvana Orphan (female protagonist Yunzhuo)
- A girl whose life experience is a mystery. She was raised by her master and was born with "immortality".
- Witnessing his master's wife being killed by Ling Xuzi from Heaven, he embarked on the road of revenge, but gradually discovered that he was actually the reincarnation of an ancient phoenix.
- Obsession: "I want this ninth heaven, and I want to taste the feeling of being burned by fire."
2. First meeting in the cage (male protagonist Xiao Jin)
- The young master of the Black Snake Clan. The clan is still under suspicion because of its submission to the Heavenly Court. His mother is imprisoned, and his father sends him to sneak into the Heavenly Court to find the person.
- He was imprisoned in the Demon-Suppressing Mountain together with the heroine. On the surface, he was cynical, but in fact, he used any means to achieve his goals.
- Secret: The blood of the nemesis of the "Demon-Eating Gu" flows in his body, but he is a key piece in the heavenly plan.
3. Scarlet Alliance
- From using each other to relying on each other for life and death, the two jointly revealed the "Demon Extermination Formation" in heaven - it can only be activated by gathering the blood of the three major demon clans (Phoenix, Black Snake, and Nine-tailed Fox).
- Reversal: The death of the female protagonist's master's wife was actually to conceal her identity as a phoenix; and the male protagonist's mother was the last sacrifice of the formation...
Purpose: Between destruction and slavery, how can the demon clan find its own way of survival?