C723 The Ruthless Commander of the Apocalypse 34

Su Yan didn't understand. Was this an era where society improved, or did society regressed? Was this era the apocalypse or …

However, if this era was the progress of their era, then when they met with problems, they should be able to quickly resolve them.

However, if this era was a retrogression of their era, then the technology of this era was indeed much more advanced than their era