C486 A Huge Gap

"Ding..." Satisfied the requirements to advance, would you like to upgrade all eight spaces to level 2? "

Ye Feng nodded: "Yes."

Not even ten seconds later, a rumbling sound could be heard and Ye Feng felt something different than before.

"Congratulations, the system has upgraded to level two, open up the energy attack space."

Accompanying this voice, with a crack