Signal

The people of Terrain say that the Mountain Sands Range was a forbidden zone. It gained its name because according to legend, the deeper one traveled into this mountain range, the more difficult it became to leave. 

Unfortunately, when she entered this mountain range, Aina had no idea about this. Due to her hasty teleportation, rather than being sent to a proper city like Leonel had, she appeared in the wilderness where she just so happened to stumble across a Variant Zone. 

Due to the nature of a Variant Zone, Aina managed to claim rewards despite her competitors being several times more powerful. But, this made her escape all the more difficult. 

Without a choice, she charged into the mountain range and eventually managed to find this network of tunnels.