The Ailen Peninsula refuge didn't face those early troubles.
The Deep Sea Stone lost its barrier significance, so it moved out of the refuge deeper underground to establish a new settlement; losing contact with the surface led to sending residents to observation posts to monitor the outside and avoid panic; long-term underground living affected their psyche, leading residents to realize that the surface was filled with anomalies and only the refuge was safe; tools were regularly checked to maintain a certain number of functional and stored tools; a defense group was established to prevent anomaly invasions.
The crown of tranquility, which people yearned for, adorned the Ailen Peninsula refuge for over twenty years, making the only trouble that emerged even more severe: the food crisis.
The refuge, which once accommodated 300 people, now houses 723 residents.