Having listened to the conversations of my fellow inmates for a while, Zhang San had a general idea of what kind of characters were imprisoned on the eighteen levels of the Heavenly Prison.
Firstly, there were those who were dissatisfied with the Yuwen Imperial Clan during the Northern Zhou period. Among these people, there were naturally some who were not afraid of death and were also powerful, but because of their special identities or certain backgrounds, it wasn't appropriate to directly execute them. So, they were all thrown into the deepest level of the Heavenly Prison.
It goes without saying that among these people, one cannot assert that every single one of them was innocent, but the vast majority actually were.
After the establishment of the Great Sui by Kaihuang, initially, in order to stabilize the situation, attention was not directed here.
