C674 The Sky Was Filled with Sorrow

If Rong Fei's guess was correct, then why did these world-shaking Extremely Powerful Experts willingly stay in Xue Yu and join the Heavenly Devil Sect?

Many people had the same thought in their minds: treasure.

The reason why they could stay in Xue Yu and join the Heavenly Devil Sect was because of the legendary treasure.

At this moment