As soon as Han Zhao finished speaking, seven-colored light circulated on the system interface and became more and more dazzling.
This system upgrade lasted for a long time. Han Zhao waited for a few hours, but the upgrade process was not over.
"Could there be a surprise this time?" Han Zhao was looking forward to it.
Seeing that the system upgrade process could not end for a while, Han Zhao's attention returned to the simulation process.
"The current Spirit Crystal and Heavenly Demon Yin energy balance can no longer support the next simulation. I still have to go to Heavenly Demon Grotto-heaven."
Han Zhao pondered in his heart. The Thousand Spirits Weapon Lord was powerful, clearly above the Thousand Autumn Weapon Lord.
If not for the fact that he had triggered the Instant Death special effect of the [Demon Vanquishing Heavenly Emperor], it would not have been easy to kill Weapon Lord Thousand Autumn.