"Ah, ah—finally out!"
Ash collapsed to his knees the moment he left the mist, and since they were holding hands, everyone else knelt down as well. They breathed heavily, as if they had just returned to the living world, so moved they almost wanted to cry.
They weren't exaggerating at all; what they had just experienced was a truly nauseating trial—the Blindness Test constructed by the Blindness Technique.
They still had no idea what the main theme of the Blindness Test was, but the curse was something they experienced firsthand: sensory deprivation!
Some might wonder, didn't they have the Holy Domain? Couldn't they resist it?
They really couldn't!
No matter how all-encompassing the protection of the Holy Domain is, it still has to allow light and air to enter, or else the mages would be just as blind and deaf. And the terrifying aspect of the Blindness Curse is that it uses light and air as its medium; even if you have the Holy Domain up, you'll still be affected.
