Demonic Magician’s History

City B Base was different from City A Base.

At the very least, the size alone was very different.

If City A Base kept on expanding and seemed to increase in size every day, City B Base's size was only around the size of two stadiums… this was mostly because their inner area is indeed the stadium and then there was another wall erected around it. 

This could be said to be putting a good use of the stadium.

As for how the construction inside was, they didn't know. 

Riya and Samuel both stopped some distance away from City B Base and selected a relatively intact building to stay for the night. There were still a few more hours before morning and for these two people who had reached rank 5, they just needed to meditate and recover their mana. 

As for sleeping?

They didn't really need it.