Soul Assassin Royal Tower

The next morning, 

Archie left the mansion and headed toward the Assassin House Royal Tower, which was quite close to the special district. 

Each territory of the Royal Demon Institute was like a vast city, but unlike a normal city, it was empty and peaceful. The Qi density was also many times higher than the outside because of special Qi-gathering arrays were all over the place.

The Royal Tower wasn't guarded by another, as there wasn't any need to. There was a powerful formation barrier surrounding the massive structure, and only those with permits in their badges could cross this barrier. 

Furthermore, if anyone tried to sneak in, they would suffer terrible consequences!

Since a special grade instructor invited Archie, he was naturally eligible to enter without spending his free training hours.