C1583 Xiao Tian's Proposal!

In Xiao Tian's opinion, Demon King Ox and the other six demon kings were not weak.

Demon King Ox, who was the strongest, was already Tai Yi Golden Immortal (in the intermediate Heavenly Immortal Stage), and was not far from the Da Lou Golden Immortal (in the advanced Heavenly Immortal Stage). As for the remaining five Demon Kings