snowy mountain does have to be cleared but it might be after the demo ends, which is under the library
cant remember where you get the sensor orb now, but you use that on the left back bookcase in the restricted section to open it
Viewing post in Stuck after the library quest
If I remembered correctly:
The guard in the starting town says “Enjoy your trip”.
The one in the snowy mountain says something like someone from Adventurer’s Guild hired him to guard the mountain.
Both of them refused to let me in.
There’s currently no one mentioning “sensor orb”.
The last bit of information I got was that the curse on Emi is not documented in the library, but there’s a fairytale mentioning a similar effect, and Ren mentioned that they have to find the origin of the tale.