Disguised Truth

Desire, people in the world spend their entire lives using it to satisfy their souls. At the same time, it is like a two-sided mirror. One side of it allows people to clearly see the desire to pursue and realize it, while the other side reflects that people have gone astray and are devoured by it, consuming their own humanity, beating their own rationality, and promoting their own bad nature. The protagonist is the one who stands on the other side and saves their souls. But when he has to encounter the same dilemma, how should he choose, and who is the person on the other side of him?