Immortals and demons have the same origin, but they have different paths due to different temperaments.
The path to immortality is to ascend to immortality, enter into the divine realm, and transcend the divine realm;
The way of the devil is to rebel against immortals, rebel against gods, and only worship gods.
The combination of the two is the path of immortals and demons, where you can see the good and the ugly.
If he becomes an immortal, I will rebel against the immortal; if he becomes a god, I will rebel against the god; if he becomes a god, I will pamper him.