```
Irinei Rusios was very certain as she said, "A massive mutant disaster erupted twenty years ago, leading to the complete abandonment of the Gem Valley in the Xingdu Kush Mountain Area. Otherworldly creatures often have a very strong sense of territory, even if their numbers are out of control, their behavioral patterns can usually be predicted and judged based on their habits, making them relatively easier to clear out. However, mutants possess a considerable degree of unpredictability, making them very difficult to search for and eradicate. They are typically more troublesome to deal with, especially the Hive mutants. If we're not careful, their numbers can become unmanageable. Yet often, mutants and other beings end up as hostile groups, particularly when their territories overlap with those of otherworldly creatures, leading to relentless battles between them."