Shiroi Town is a rather remote location within Chounen (specifically within the coldest portion of the region alone, Aloi) that's not very far from either Mira's Forest or the mountainous range that joins the region. As a result, while it tends to be a peaceful little town that enemy forces can rarely infiltrate, it's surrounded by strong Monsters and Feral Youkai from either side, so only skilled adventurers or residents of Shiroi can lead others here safely.
Since it's in a remote part of Chounen, its population is rather small, but it's a cozy little town that's somewhat close knit. This is Kage's hometown, where his self-made cottage is, and is the hometown of his best friend, Leon, as well.