C533 The Battle of the Phoenix Fire

In the next few days, everyone could properly cultivate and strive to break through to level seven!

After returning to his room, Shen Chen opened the system.

"Hello, host. The system is here to serve you."

Shen Chen quickly opened the supermarket system to see if there were any tools that could help him build the underground city.

Miniature houses, generators, ventilation holes..