Supreme Immortal Aperture.
The soul dao grand formation had already been laid out properly.
This grand formation floated in midair, covering an area of roughly three li.
The dim light emitted by the grand formation resembled an enormous round cake, thick at the edges and thin in the middle.
Yin winds rose within the formation, and the temperature plummeted, while outside it remained as usual.
After probing it several times with his divine sense, Fang Yuan felt satisfied. "This grand formation was improved from a soul dao killer move. It is more stable than the killer move, and more delicate and exquisite to manipulate."
This was a wondrous soul cultivation method recorded in the Shadow Sect True Inheritance, capable of allowing a human soul to break through its own limits and reach the desolate soul level!
Using his own formation path attainment as a foundation, Fang Yuan had perfectly improved this soul cultivation killer move.
With everything prepared, Fang Yuan sent his Hundred Million Man Soul into the grand formation.
A desolate beast's soul core was clutched in Fang Yuan's soul hand. When his soul entered the grand formation, he crushed the soul core.
The soul core had been processed beforehand, and under the influence of the grand formation, it had become exceedingly brittle.
The instant it shattered, it turned into mist and drifted outward.
The grand formation accelerated its operation, causing the mist to swiftly spread and completely envelop Fang Yuan's Hundred Million Man Soul.
Over the next several hours, the mist gradually thinned until it finally dispersed.
Fang Yuan's Hundred Million Man Soul still retained its original appearance, matching his current Supreme Immortal Body. It was condensed almost into substance, vivid and lifelike.
Yet Fang Yuan's soul felt and experienced something utterly different from before.
"So this is