Complete Plan for the Ending of the Book

I, a modern social animal, was looking for novels to read in the middle of the night, and finally discovered that the author was a eunuch! In anger, he rolled his eyes and came to the unfinished novel. It also comes with a system comparable to the window98 system. And I must complete the system's ultimate task, 'Complete the ending! ' Okay, then it's up to me to express myself freely. The protagonists all have their own auras, so is it okay for me to pick them up secretly? In the middle of the journey, you can become an immortal, raise a disciple, watch famous scenes, eat melon, feel free and at ease. A young apprentice who had a blood feud and vowed to take revenge, but was adopted by me. A noble and noble immortal who believes that the way of heaven is irreversible and that evil, evil, humans and immortals are not in the same heaven. A demon king who was originally the supreme king of the demon world, but insisted on running to the world of cultivation to stir up trouble, and even exploded corpses at the slightest disagreement. A spiritual beast who has also been exterminated and is always on the verge of going berserk. Once he goes berserk, he will not be able to tell the difference between friend and foe. There is also a mysterious and strange soul body... When I thought that except for my own disciples, everyone else was abnormal, then I discovered; These are all illusions! Every cut is black! This is not only a rhythm that wants to destroy the world, it also wants to break me into several pieces! No one has ever told me why the more I applied the supplements, the worse it became, and why it was still blackened? … I thought I treated it all as a 'game', killing monsters and leveling up until I passed the level. As everyone knows, I have already fallen into it...