C3366 Full of Rewards

On the fifth floor, there was another door that was also open. Lu Shan just looked inside and immediately lost interest.

The door of the opposite room was closed tightly. Lu Shan tried to open it, but he was unable to do so!

This discovery made Lu Shan happy instead of surprised... Since this door had been locked with a key, it was very likely that everything inside had been kept quite well