To be the best leader, you must also be the strongest leader!

Although the demon soul of the unicorn had been refined, Sun Yi frowned. Looking at the soul refining flag in front of him, Sun Yi fell into thought.

"What's wrong, Master? Is there a problem?"

Sun Yi pondered for a while and then said, "The current limit of the Demon Refining Tower is the third-level demon soul, and it can only refine one third-level demon soul at a time. The efficiency is too low. We need to continue to improve the Demon Refining Tower to improve the efficiency of soul refining."

"Is there any solution?"

Sun Yi pondered for a while before speaking, "The most direct way at the moment is to upgrade the Soul Refining Flag's rank. If the Soul Refining Flag and the Soul Refining Monument can be upgraded to the fourth rank, the efficiency of refining should be greatly improved."

"But we don't have a fourth-level weapon refiner. It won't be easy to upgrade the Soul Refining Flag and Soul Refining Monument to fourth-level spiritual weapons." Elder Qin Chu frowned.

Sun Yi nodded. "Our Demon Refining Tower not only involves weapon refiners, but also formation makers, talisman makers, and alchemists. If we rely on improving the quality of spiritual weapons to increase the efficiency of refining, we will need to trouble at least four fourth-level miscellaneous art masters."

"We might be able to find one or two fourth-level masters of various arts in Luan Yao County, but their prices are definitely not low, and there's no guarantee we'll be able to gather them all."

"How about we contact the Seven Stars Tower to find a solution? Their headquarters is in Tiansheng County, so they must have a solution."

However, Sun Yi simply shook his head and rejected Elder Qin Chu's suggestion to go to the Seven Star Tower.

"The Heavenly Soul Liquid is of such great importance that I don't trust outsiders with the relevant matters, especially those outside of Luan Yao County. Therefore, we must find a solution ourselves."

Sun Yi didn't dare to expose the Monster Refining Tower. Although finding another fourth-level miscellaneous artist could improve the quality of the Monster Refining Tower, the possibility of the Monster Refining Tower being exposed was quite high, so he didn't dare to take the risk.

It's the same at the Seven Star Tower, we can't take any risks.

"What should we do then?" Elder Qin Chu looked at Sun Yi.

"Let me think about it. Maybe there is a way to increase the efficiency without improving the quality of the Monster Refining Tower."

"By the way, Elder Qin Chu, please arrange to build an underground palace within the belly of the main peak. The Demon Refining Tower must be moved into the underground palace."

"Also, continue to collect materials for refining the Demon Refining Tower. Once the materials are gathered, we can refine a second Demon Refining Tower. This will also improve the efficiency of producing the Heavenly Soul Liquid."

"Okay, Master, leave this matter to me. I will arrange it immediately." Elder Qin Chu said and turned to leave.

Sun Yi went straight to the first floor. At this time, the black vessel at the bottom of the vortex was already filled with a lot of silver Heavenly Soul Liquid. Sun Yi quickly took out another black vessel and replaced it with the one containing the Heavenly Soul Liquid.

Fortunately, I brought out a strange black stone from the bottom of the Soul Refining Valley, otherwise I really don’t know what to use to store this Heavenly Soul Liquid.

After walking out of the Demon Refining Tower with the Heavenly Soul Liquid, Sun Yi called out and Er Gouzi immediately arranged for ten disciples who had reached the great perfection of the Qi Refining Stage to come over.

"You can begin absorbing the Qingyun Dew now, refining and absorbing it drop by drop."

"As ordered!"

The ten Qi Refining Stage Great Perfection cultivators could no longer wait, and quickly surrounded the black vessel, then began to refine and absorb the Heavenly Soul Liquid drop by drop.

In the next ten days, Sun Yi was busy studying how to improve the Monster Refining Tower, but improving the Monster Refining Tower was not an easy task.

After Mr. Yan and the others knew that Sun Yi was researching the transformation of the Demon Refining Tower, they also followed Sun Yi in the research.

Then more and more people joined the research team, and soon everyone except those who were practicing had joined the research.

With everyone's joint efforts, the improvement of the Demon Refining Tower has accelerated. Although the strength of these people present is not strong, they can occasionally put forward some constructive suggestions.

In this way, another half a month passed, and Sun Yi and his team finally designed the second version of the Demon Refining Tower.

"The redesigned Demon Refining Tower didn't improve its quality, but the power of refining increased fivefold, which should be pretty good."

Sun Yi looked at the new design of the Demon Refining Tower and felt very satisfied. They had perfected all the theories in the past few days and finally finalized this design.

While Sun Yi and his team were studying the design drawings, the elders of Qingyun Sect were not idle either. Each of them was busy like a spinning top.

Elder Ye Luo led a large group of people to practice the art of soul separation. Those disciples who had refined and absorbed the Heavenly Soul Liquid to meet the requirements all practiced the art of soul separation under the arrangement of Elder Ye Luo.

Unfortunately, this artificially created Heavenly Soul Liquid is somewhat different from the Heavenly Soul Liquid that Sun Yi absorbed in the Soul Refining Valley. A cultivator in the Qi Refining Stage can only refine and absorb it to a certain extent, but he will not be able to continue refining and absorbing it.

Er Gouzi was the first to discover this problem. After his soul had increased by more than twenty times, it could no longer be strengthened.

After Sun Yi's research, he basically confirmed that it was due to the purity of the Heavenly Soul Liquid. This kind of Heavenly Soul Liquid has an absorption limit for cultivators in the Qi Refining Stage.

Although it was a bit regrettable, the soul could be strengthened more than twenty times, which was enough to split the soul twice and form four souls in the sea of ​​consciousness. It also completely exceeded the requirements for breaking through the bottleneck.

After these disciples successfully practiced the art of splitting the spirit, they went to the main peak to break through under the arrangement of Elder Han Yun and Li Tai.

During this entire period, the main peak of Qingyun Sect was filled with spiritual energy every day, and many disciples did not know what was happening.

Soon another two months passed, and Sun Yi and his team rebuilt a demon refining tower.

This Demon Refining Tower is twice as big as the previous one and its height has also increased a lot. Sun Yi is now standing on the third floor of the Demon Refining Tower.

The third floor of this Demon Refining Tower has obvious changes from the third floor of the previous Demon Refining Tower.

First of all, the area occupied by the central formation has been expanded a bit. Secondly, the number of soul refining tablets has become eighteen, and the number of soul refining flags in the center has also become three.

The three soul refining flags formed a small soul refining formation.

At this time, Sun Yi and his team activated the Demon Refining Tower. Three soul refining flags suddenly fluttered, and the formation started to work instantly.

Sun Yi directly took out a soul-sealing talisman and threw it over.

A second-level demon soul appeared instantly, and was then directly absorbed into the formation in the center of the flag, and was refined in the blink of an eye.

Sun Yi took out another soul-sealing talisman and threw it out. The next moment, the soul of a third-level monster rushed out.

This is the demon soul of a demon wolf. It roared as soon as it appeared, but was absorbed into the soul refining formation in the center the next moment. This third-level demon soul had no power to resist.

Soon, this third-level demon soul was refined in the soul refining formation. The speed was much faster than before, and even five times more efficient than the previous plan.

"Okay, the efficiency is indeed much higher!" Elder Qin Chu looked delighted.

Sun Yi nodded: "The efficiency has indeed been greatly improved. The two demon refining towers running together should be able to meet the needs of the sect."

"That's right, but this will increase the consumption of the demon souls. The demon souls in the sect will definitely not be able to hold on for long."

"Haha, the Forest of Ten Thousand Demons is just to our west. Do we still need to worry about not having enough demon souls?" Sun Yi chuckled, not worried at all about not having enough demon souls.