Even though Origin Territory had many materials in the warehouse, the consumption was still too much.
However, Liu Yan felt that it was normal after thinking about it. After all, the city wall of Origin Territory was so huge, and it surrounded the entire territory. It was more than a hundred meters tall.
They needed to consume a lot of materials to upgrade such huge city walls, which was normal.
Although upgrading the city wall required a lot of materials, it was completely worth it.
After all, the defense of the entire Origin Territory was on the city walls.
Without the city walls, all the other defensive structures were empty talk.
Immediately, Liu Yan told Luo Qingcheng the materials needed to upgrade the city wall to level 3.
When Luo Qingcheng heard this, she was also a little surprised.
"I didn't expect it to require so many materials!" Luo Qingcheng exclaimed.