The mission they took was to exterminate some monsters roaming a nearby forest. This forest had quite a few monsters so it was a dangerous place. But the road going through this forest was a very important shortcut to reach a nearby city, so it was not something that the merchants could just let go. So that gave regular missions to the hunter association to clear the monster population of this forest.
Even though the girls had conquered a ruin, they had never battled a monster from this world before. From the books that they got to read, they got the idea that the monsters of this world were not the same as the monsters from RASHTROYNI. The monsters of this world were a lot more sinister and evil. In a book they also found down theories as to how the monsters came into being. They were not sure if that theory was correct or not, but if it was correct then what they were dealing with was going to be very troublesome.
