After a tour, the Blood Citizens had indeed made numerous changes to Zion, especially in certain special areas, such as the Divine Skin Mansion, Hippocrates Hospital, Omphalo-Centric-Academy, and the Power Station.
These areas, once specially planned and prioritized for construction by the Organization, were all being utilized by the Blood Citizens.
The entire hospital had become the Blood Citizens' biological research zone, and for some unknown reason, the area where the hospital was located suffered from relentless blood rain,
As for the once familiar academy, William simply couldn't get close to it,
The train that led to the academy had been replaced by a train of blood and flesh, which only nobility could access, and it was protected by a blood barrier. It was unclear what kind of changes the Blood Citizens were making to the academy, nor could it be determined whether teacher Zede had been sealed within it.