By mid-April, Zhang Yu, Yu Xinghan, Li Xiao, and other students had already arrived at the tenth underground level.
For this cemetery restoration project, besides first-year students, more outstanding upper-year students had also signed up to participate.
For example, leading the team at the front was a sixth-year student named Tian Yang, who was responsible for leading, supervising, and coordinating the work of these students.
Zhang Yu walked through the wide underground passage, and the further he went, the more he could feel the concentration of spiritual energy in the air becoming denser.
According to Zhang Yu's knowledge, the underground spirit veins of Wanfa University City were not naturally formed but were gathered into eighty-eight spirit veins at this location by adjusting the terrain when the university city was built.
The passage they were walking through led to one of these spirit veins.
Moments later, a massive metal door loomed in front of everyone.