"It's best!" He said with a gloomy face, and began his own refining process. Fires rushed into his medicine cauldron and refined portions of the medicinal materials.

"It's time to start." Yang Yu smiled strangely, then placed his right hand on the medicine cauldron. A trace of gray flame penetrated into the medicine cauldron along the hole left by Yang Yu. After Yang Yu controlled it, it quickly heated up, burning dozens of medicinal materials to blacken, and the gray flames also began to burn the medicinal materials in the alchemy cauldron.

Dozens of medicinal materials withered quickly, and then under the control of Yang Yu's extremely powerful soul, in just ten minutes, several medicinal materials were refined into pure medicinal powder. Finally, when Yang Yu's mind moved, they gently suspended into the formation of placing spiritual liquid in the medicine cauldron, and fused with the spiritual liquid.

The first batch of pure medicinal powder was extracted as quickly as possible. Yang Yu's face remained unchanged. His palms were waving one after another. Yang Yu began to burn and refine them in the medicine cauldron. However, no matter how many of these medicinal materials were, it did not bring Yang Yu a feeling of panic. Everything was controlled by Yang Yu, who was not shivering.

Moreover, what surprised Yang Yu the most was that the medicinal materials he refined seemed to be faintly mixed with a trace of extremely light spiritual energy. Although this spiritual energy was very light, the quality of the refined medicinal powder was quietly increasing.

Seeing this, Yang Yu couldn't help but feel joy in his heart. Don't underestimate these mixed spiritual energy. The elixirs refined using these medicine powders will definitely be more than one level higher than the same elixirs refined by seventh-grade alchemists.

Under Yang Yu's almost rapid refining, dozens of medicinal materials in the medicine cauldron were completely refined into the needed medicinal powder and medicinal liquid in just over an hour. All of them were controlled by Yang Yu and integrated into the spiritual liquid left by Yang Yu, and all the spiritual liquid and medicinal powder were fused together.

Under Yang Yu's control, a circle of pills that were larger were suspended in the medicine cauldron, but the pure energy in it showed no sign of less than that of others, but the energy was even stronger!

This is also the reason why Yang Yu chose so many low-quality medicinal materials!

Taishang Fifteen can extract all the pure energy in a portion of medicinal materials, but depending on the quality of the medicinal materials, the amount of energy that can be extracted varies. Therefore, Yang Yu chose so many low-quality medicinal materials. Twenty low-quality medicinal materials contain more energy than a high-quality medicinal material, so this is one of the characteristics of Taishang Fifteen.

As the pill condensed and formed, Yang Yu raised the corner of his mouth and slapped the medicine cauldron with his right hand. Suddenly, the blue medicine cauldron trembled suddenly. With a huge roar, it turned into countless lightning and dissipated into the sky. A terrifying energy also scattered out and swept out around.

But a strange scene happened. The people near and far away around Yang Yu seemed to have no effect at all, and they were refining medicine as usual, and there was a loud bang without any effect at all.

But the seventh-grade alchemist beside Yang Yu staggered, his hands broke away from the medicine cauldron, and the flames inside the medicine cauldron quickly dissipated.

"Not good!" The seventh-grade alchemist's face changed suddenly. He had no time to complain. He quickly maintained the flames in the alchemy cauldron, but just now, he directly lost a small part of the medicine power in the alchemy cauldron.

"Dare to threaten me, this is the end!" Yang Yu glanced at the man lightly, thought to himself, and then looked at a large pill floating in front of him, with a divine light flashing in his eyes.

"Now you are in use!" Five thunder and lightning suddenly surged out of Yang Yu's body, and the red and golden nine-turn Xuanyang thunder rushed to the super-large elixir. Under the control of the soul in the heavenly realm, they tempered the elixir over and over again.

"Nine-turn Xuanyang Thunder, it's almost done!" After feeling that the Nine-turn Xuanyang Thunder above the pill had been tempered enough times, Yang Yu took back the Nine-turn Xuanyang Thunder. The soul of the Heaven Realm once again wrapped in Nine Nether Phantom Yin Thunders and rushed towards the pills refined by Yang Yu, wrapped in the pills, and tempered them over and over again.

After the tempering of Jiuyou Fantasy Yin Thunder was over, Yang Yu used Gengjin Yi Thunder to temper the elixir. After reclaiming Gengjin Yi Thunder, the fourth power of heavenly thunder in Yang Yu's body surged towards the elixir.

Green lightning wrapped the pills, wrapping all the energy in it.

As time passed, the thunder of the elixir was also stopped. With Yang Yu's control, a bang turned into a ray of thunder and lightning and disappeared into Yang Yu's hands.

Then, the blue Jiuhai Canglan thunder rushed up and wrapped the pills that had been tempered to normal size, and Jin Xin's last tempering method.

Until more than ten minutes later, nearly three hours have passed since the beginning, nearly half of the people in the entire square have completed the refining of medicine, looking at the snow-white elixir in their hands with joy or sorrow.

"boom!"

Suddenly, an invisible wave of energy surged out from the snow-white pills refined by Yang Yu, and rushed into the surroundings like a tsunami. In an instant, it covered the entire square and soon covered the entire alchemist guild. Not long after, the huge small Dan City was all shrouded by Yang Yu's terrifying elixir fragrance.

Everyone felt half of the fatigue in their bodies disappear in an instant, and they were refreshed and all looked at the direction of the Alchemist Union with strange eyes.

In the square of the Alchemist Guild, everyone stood there as if they were stationary at the moment when the elixir fragrance exploded. Not long after, everyone looked towards Yang Yu, looking at the snow-white pills with bursts of light in front of Yang Yu, and his heart was ups and downs!

The lightness of this pill may not reach the eighth grade pill, but I am afraid that this pill has reached the peak of the seventh grade pill, which is an extremely pure level!

Everyone was shocked and looked at Yang Yu's direction incredibly. It was impossible for everyone to imagine that Yang Yu could use those low-quality medicinal materials to refine these seventh-grade peak pills.

But what is even more shocking is Yang Yu's special medicine refining technique, and the way the thunder and lightning force tempered the pills did shock everyone.
Chapter completed!