According to the difference in one's physique, their affinity with various elemental powers would also be different. Therefore, everyone's magic power would also have different degrees of bias. After becoming a professional, choosing a more affable element as the direction of development would be twice the result with half the effort…Ahem, this knowledge point wasn't very important.
Back to the main topic.
The principle of the magic barrier was to draw out all the elemental energy within the barrier in an instant, forming an elemental vacuum.
To the natives of the Mother Earth Continent, this was akin to the oxygen in the air suddenly becoming extremely thin.
There was no elemental power in the surroundings, but there was mana in the human body. Therefore, the mana in the human body would begin to dissipate. After it left the body, it would be sucked away by the anti-magic barrier, as if it was being continuously squeezed by a huge vacuum pump.
