"Will it be discovered by the concealed demon?"
Shard asked again, and the doctor shook his head:
"No need to worry about that, [Demon Vision] was the core power of the Demon Hunters against demons during that dark era, tested by time and multiple wars. Of course, you yourself must be very cautious, don't use it frequently, and avoid using it continuously. Besides, constantly staring into the void would make others suspect you are mad."
In the period of the Third Era when those Demon Hunters who made countless sacrifices still existed, the "Circle Sorcerer" system hadn't yet existed, and the arcane technique learning rituals on paper were transformed by successive witches into the Circle Sorcerer system. And the learning ritual of [Demon Vision], rather than calling it a ritual, it's more like a peculiar magic potion. Once the potion is prepared, a few drops into the eyes can initially grant mastery of this arcane technique.
