[nods at Souji]

Shadows that powerful can create their own dungeons. Palaces, we call them. You've heard me use that term before.

If we steal a Palace's Treasure-- the item that forms the core of that world-- then the Palace is destroyed, and the Shadow returns to its true self. That is. . . the distorted desires of the person who owned the Shadow disappear.

And in real life? That person feels immeasurable guilt for the crimes they've committed.