Zhao Wanong instinctively activated his cultivation technique, and in the next second, a massive influx of nature's spiritual energy poured into his body, like a waterfall cascading over his limbs and organs.
At that moment, he felt as if his entire body was immersed in a sea of spiritual energy, indescribably pleasant, even making his Golden Core True Essence more lively and agile than before.
Beside him, Zhao Gujiu sensed the super strong gravitational environment here and could not help but display a look of delight.
As a Martial Saint, Zhao Gujiu loved to temper his flesh and will in extreme environments.
Incidentally, this underground cavern possessed multiple critical factors such as high spirit, supergravity, vacuum, and extreme cold, making it one of the rarest cultivation treasure lands on earth.
