Imagine a huge plot twist:
- The "witch" saintess becomes the true "hero", and fakely dies.
- Dead demon King gets revived and becomes the kingdom's king
- The warrior gets branded as the traitor, the best punishment since everyone will despise him. Dying is way too quick.
- The prince gets dethroned and suffers.
Since the role is switched, the saintess, along with her sister, goes to the warrior's world instead! The "traitor" feels forever trapped.