Chapter 214: Underground Gold Vault_2

By this time, Yan Fei wasn't feeling annoyed, but rather fortunate. He was glad that he had already collected three essential items for the drone upgrade. Otherwise, even if he managed to acquire the thousand tons of gold after scanning the drone upgrade template, the drone wouldn't be able to upgrade. It's well known that each essential item for the upgrade is hard to come by, and even with the chances of coincidental fortune, Yan Fei, owning the whole world, might not be able to acquire a single special item.