There are many things that can be upgraded in the storage room in "Prince of Blue". However, very large players don't know what to upgrade and make the most profit. First of all, the gem will be better, because this room is the early room, and the important gem keys in the late gem are important.
What is the biggest benefit to upgrade the Lantu Prince's Storage Room?
The gems will be better, because this room is the early room, and the early gemstones are important and the later gem keys are important. To prevent sudden death and the inability to open a good room, you can choose gems. As for the key, just add one to the hallway.
Or it is a better room with blind spots built in the early stage, and the hallway is also a room in the early stage, so the keys are generally enough.
