"How could brain surgery have any effect on Willpower Immunity?"
Jiang Han asked. Though she was already a witch, the thought of having surgery performed on her head still stirred a faint instinctive unease within her.
Unease turned into hesitation.
Hesitation prompted her to ask an extra question. "Our emotional center comes from the spinal cord and doesn't have much to do with the brain."
"You don't need to worry about that."
Eve Harkins said confidently, "The reason we're operating on your brain is that operating on the spine would be a little dangerous, and inconvenient too. More precisely, what we're doing is enhancing your..."
Jiang Han felt her cat ears being touched.
"...signal reception ability."
Eve spread her hands. "Witches with animal ears are the most convenient to modify this way. As long as we turn those animal ears into signal-receiving towers—that is, a wall of mental and willpower-based [Taunt]—then all mental damage will strike that wall first, gradually slide inside, and be absorbed. That's the first layer of protection... The second is the modification of your brain. We need to build a sufficiently powerful buffer zone to cushion it."
The Ghost Witches' method unexpectedly possessed a distinctly "physical" quality.
The various kinds of "prevention" technology Jiang Han knew all worked on astonishingly simple principles once they reached either civilian or cutting-edge applications.
The Ghost Witches' method was one such very simple approach.
Layered isolation.
For example, the best way to retain heat was an insulating layer on the outside, a layer of air in the middle, and another insulating material on the inside.
Likewise, soundproofing meant a layer of soundproof cloth outside, a sponge board with air gaps in the middle, and another sponge-like partition and soundproof cloth inside. That achieved the best results.
The Ghost Witches' so-called