C486 The Huge Gap

"Ding… Fulfilling the conditions to be promoted, will you upgrade all eight spaces to level 2?"

Ye Feng nodded and said, "Yes."

The space began to glow. In less than ten seconds, with a rumbling sound, Ye Feng could clearly feel that there was something different from before.

"Congratulations, the system has been upgraded to level 2. Open the Energy Attack Space."

With this sound