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[Gathering Eye Disease]
Throngs of pilgrims disregarded the influence of the Grey Zone, heading towards the land of their faith—Greyrell Mountain.
As recorded in the investigation reports, they gradually got lost in the fog-shrouded mountain paths, unable to find the correct routes to ascend, and became trapped.
But all the pilgrims still maintained their composure, without any sign of panic.
They took shelter in a cave they found by chance, subsisting on the mountain's pathological animals to preserve their vitality, quickly devouring every animal on the back mountain.
During the consumption of raw animals, their bodies underwent changes unbeknownst to them.
Some pilgrims who specifically ate the eyes of animals mutated to gain extra visual abilities, gradually seeing through the fog of the mountain, and discerning the correct path.
Moreover, they craved eyeballs themselves, to the point of being able to attract others' eyes from a distance.