The Immortal had a Guardian Spirit

The immortal, who had lived for over a century, was inherently weak-hearted. Because of this, when he discovered that the disciple he had considered a child had deceived him, he felt more sadness than anger. Instead of seeking revenge, he chose to disappear. Ten years passed since then.

The problem was that it wasn’t just one disciple of his.

“Go find your disciples.”

Death smiled grimly.
Just moments ago, he had seen Raven’s disciples gathered together, brainstorming designs for a windowless room. But what did it matter? They had brought this upon themselves.