Shen Shihong was a transmigrator bound to a System. The System promised that once he completed his mission, it would send him back to his original world. So Shen Shihong and the System became partners in crime, doing plenty of wicked things and ruining all three protagonists in the book. In the end, he even brought disaster upon the entire cultivation world.
After completing his final mission, Shen Shihong opened his eyes and discovered that he was still in the novel's world. He had also possessed a body with no cultivation that looked remarkably like his own, and was now using the alias Shen Shijian.
Shen Shihong had assumed that when he appeared before everyone as Shen Shijian, they would all want him dead. That was especially true of the novel's three protagonists. They didn't know how Shen Shijian was connected to Shen Shihong, but the two looked so alike that they could at least beat him up to vent their anger.
Who could have guessed that the three protagonists would fight tooth and nail over him? Only then did Shen Shihong realize that he was the three of them's white moonlight.
And all three protagonists planned to use Shen Shijian to remember someone they'd lost.
What is this? Am I standing in for myself?
A split-personality protagonist gong x a transmigrator forced to become his own substitute
Theme: Substitutes and white moonlights