I, Morgan, captured hearts

Young Morgan had a long dream.
She dreamed of goblins, of Britain, of herself.
Because of this, she saw the 16000-year ugly history of the Fairy Kingdom, and she witnessed Britain stepping into a "disaster". At the same time, she also saw her own failure...
So, was the demise of Britain inevitable?No matter which world you are in, it is an unchangeable fact.
However, if this is the case, then what is the meaning of her existence as the "master of the island"?
What is she living for?
……
Morgan finally understood this question when the blond girl smiled at her.
"As long as you live, this is my salvation."
"Forgive me, Al, this is the last time."