C80 Terrifying Demonic Fire!

Strictly speaking, Qin Xiaobai's idea was inspired by Bi Xiu.

While helping Bi Xiu to improve the three yang fire's mental cultivation method, Qin Xiaobai realized that although the human world's spiritual energy was thin, it still existed. If it could be absorbed and utilized, it would be an excellent method of attack.

Spiritual energy was the source of spiritual energy