Accompanied by the consumption of a large amount of metal materials, the underground space reached an extent of eight thousand square meters, already covering a small part of the current Sanctuary.
Moreover, the activities of the ranger units haven't stopped. They consumed a large amount of metal to forge an entirely new underground space. Finally, when the underground space's area reached ten thousand square meters, Su Yu stopped the rangers' actions. The entire space was made of metal.
"With this, the underground space can be further expanded in the future until it covers the entire Mechanical City. By then, the Mechanical City will also be integrated into a whole."
Then, Su Yu walked to the center of the underground space. On the entirely metal-cast floor, the Core Terminal of the Mechanical City was placed.
Su Yu looked at Nuonuo, who was floating beside him, and said, "Nuonuo, let's begin."
"Use Mechanical Fusion."
"Yes, master," Nuonuo replied cheerfully.
