Responses
I was thinking what if the current emperor and red witch helps so that the past emperor doesn't have to use the earth rune. But then I realized that no matter what both would have gone to the past so of course they would have thought of that so why didn't that work before.
Oh yeah, I didn't thought about that
What if Red Witch prevents the Emperor from using Earth rune so that his days won't be numbered anymore ¯_(ツ)_/¯