Regent, Wait And See

Disputes between court s:
One was a high and mighty Prince Regent. His stomach was dark and ruthless, trampling the entire world beneath his feet!
All he wanted was for her to die!
One was a cowardly emperor who had tricked everyone in the world!
She only wanted to kill him!
But then, why did everything change?
I am willing to sacrifice the whole world, but I want one of you!