Two hours.
Four hours.
Lu Yu had been sitting cross-legged on the ground the entire time, as if he'd blended into the darkness.
However, his aura was rapidly growing stronger at a speed visible to the naked eye.
In the darkness, Lu Yu's entire body seemed to be emitting a faintly discernible golden light. If one were to look closely, they would be able to see a golden flame slowly burning on his skin.
The cave was pitch black, but Lu Yu was like a lamp, slowly burning.
"Nine Dragons Tyrant Body Technique is a cultivation technique that I created myself. In my previous life, I boasted that I was invincible under the heavens, but Shen Linglong still managed to catch me. " A cold light flashed in Lu Yu's eyes.
In his previous life, he had practiced the Nine Dragons Tyrant Body Technique to its limits. Once it was used, the nine black dragons would crazily devour it, and no matter how powerful the attack was, it would become his.
"There should be a way to improve this technique." Lu Yu muttered.
If anyone else were to hear this, they would probably laugh their teeth out.
It was already good enough for a Innate realm to obtain a manual. Even a Dragon Qi warrior would not dare to easily say that he could improve his techniques.
However, this cultivation technique was created by Lu Yu in his previous life. He was able to grasp every detail.
"Hmm?"
Just as Lu Yu was deep in thought, he suddenly felt the zhenqi in his body move.
It was as if something was quietly rising from within his dantian.
Lu Yu's entire body trembled. He immediately discovered that in his dantian, a dazzling golden true energy had appeared.
This true essence had gathered into the shape of a long sword. It was simple and unadorned, and revealed a trace of extravagance. The edge of the sword was engraved with a seal of dragon markings.
If he remembered correctly, this sword was the one wielded by the Heavenly Emperor TaiGan, the Unparalleled Profound Sky Sword.
"The remnant soul of the Celestial Emperor is dead. The sword soul of this sword has also become ownerless." Lu Yu suddenly felt a slight change in his zhenqi.
The sword and the two black dragons in his body seemed to be restrained by something as they slowly fused together.
These were two completely different types of true qi.
Lu Yu's Nine Dragons Tyrant Body Technique devoured everything in its path, it was extremely tyrannical and ruthless.
The Unparalleled Profound Firmament Sword of the Heavenly Emperor was upright, upright, and extremely powerful.
"Pfft!"
Lu Yu spat out a mouthful of blood. He could feel that within his dantian, the two forces had already started to collide violently.
"What's going on?!" Lu Yu was overwhelmed with shock.
The two types of true qi, one positive, one evil, were incompatible fire and water.
If it was anyone else, their body would have exploded and died, but Lu Yu had forcefully endured it.
Due to his powerful zhenqi, blood was already seeping out of his skin. His appearance was extremely horrifying.
Dong!
A dull sound came from Lu Yu's stomach.
Lu Yu's entire body trembled, and then he suddenly opened his eyes.
He saw the positive and evil energies slowly merge together.
On Lu Yu's body, the ferocious Black Dragon had disappeared and was replaced with a miraculous Taiji diagram.
There was yin in yang, and there was yang in yin.
The Tai Chi diagram slowly rotated. Soon after, Lu Yu felt that the surrounding earth spiritual energy was like a tide, merging into Lu Yu's body.
The originally blocked meridian channels were instantly washed open. Lu Yu couldn't help but let out a long roar, which carried a strong amount of zhenqi as it echoed around the cave.
Not only had his cultivation greatly improved, Lu Yu felt that his cultivation had undergone a tremendous change as well.
Just by glancing at the primal chaos diagram, he could feel an ancient and desolate aura being emitted from it.
"What is this?" Lu Yu frowned. Even in his previous life, he had never seen this Tai Chi diagram before.
At this moment, the boulder at the entrance of the cave was suddenly kicked away.
"Brat, do you think that this old man won't be able to find you just because you're hiding here!?" A rough laugh came from outside the cave.