Wen Qing, the direct disciple of the former leader of the Tianyan Sect, was a little transparent person who was not loved by his master and not loved by his junior brothers and sisters. After his rebirth, he decisively changed his master and avoided the protagonist group. Revenge? There is no need, life is long, and you should enjoy the beauty of this world.
The demons are back and want to destroy my happy life? It doesn't exist. Since you want to use demonic energy to corrode the world, then suck it in until you no longer have demonic energy.
The details are well described