When Xie Renjie killed the Berserk Knight, in addition to 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 over and over again.
The material of the key did not look like ordinary metal, and its design did not resemble the key to a normal door lock either; rather, it looked somewhat like... a car key.
Chapter 352