"This mineral is three times as dense as ordinary steel and nearly as hard as diamond, but it has one special property—it releases a wavelength identical to God Tree Chakra when subjected to high-frequency vibrations.
If I drive the blade into the ground and use chakra to stimulate its vibration frequency, the wavelength it emits will resonate with the God Tree Main Root underground.
That resonance will make the geological structure around the main root brittle, like shattering a glass with sound waves.
The rock and soil around the main root will develop cracks under the resonance. When Guy punches down, those cracks will spread downward like a spiderweb, all the way to a depth of a hundred and three meters-the force won't have to punch through a hundred and three meters of rock. It'll follow the cracks all the way down."
Neji opened his eyes.
The whites were full of blood vessels, but his pupils were clear. Not the clarity that came after exhaustion, but the clarity of hearing a plan that could actually work.
"What's the resonance frequency?" Neji asked.
"I've measured the God Tree Chakra wavelength," Chisen said. "Back in Pheasant Feather Valley, I secretly measured it once with a frequency analyzer used in Medical Ninjutsu.
The main root's chakra wavelength is seven point three hertz.
Very low, close to the natural vibration frequency of the earth's crust. That's why ordinary seismic detection ninjutsu can't detect it.
But if I make the blade vibrate at the same frequency, the main root will resonate. The amplitude will keep increasing until the geological structure around it can't withstand it."
Tenten rose from the ground. Her grip had already left the imprint of her hand on the kunai's handle.
Her legs were still a little weak, but her eyes no