When Xie Renjie killed the Berserk Knight, besides dropping two Demon Cores, there was also that strange key.
Yan Ao looked at the key placed on the table, picked it up with curiosity, and examined it closely.
The material of the key did not look like ordinary metal, and its design was not like the key to an ordinary door lock either; rather, it looked somewhat like a car key.
Chapter 91