C652 The Powerful Soul Absorbing Tower.
The evil spirits were the souls of those who had committed crimes. The souls of those who were truly good people would not be absorbed, but there were very few of them.
After all, ever since Lee Wan had cultivated the Blood Spirit Art, he had no use for it in the Blood Evil Earth. He would never kill innocent people just to obtain the Blood Spirit Ball. He was a human, not a devil