"Well, it's a place for people to train and fight. But anyways, when she came back, she was changed. Her mentor forced her to absorb some sort of magical energy that makes her live forever, but every time she dies her body rots away a little more and she loses some of her sanity. If she dies now, she'll be completely lost. No one can handle its power and her mentor knew this. Not just that, but she forced her to kill innocents..."