Li Yelai followed Captain Yin Huo to the headquarters building in the main urban area.
And directly entered the underground network in the headquarters building.
This was Li Yelai's first time here, and he couldn't help but marvel at the spaciousness of the underground network.
"Speaking of which, this is your achievement," Captain Yin Huo chuckled. "These underground spaces were created by the Netherworld Train. In fact, major expansions and connections have been made to more underground spaces. If any danger arises, we could move a large number of people into these spaces for shelter."
The Netherworld Train could rapidly create underground spaces, after all, as long as the train was activated, it automatically built tunnels.
This significantly sped up the government's construction of underground spaces. All the divisions and headquarters used the Netherworld Train for a series of expansions.
