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

Sun Yi nodded. "I think so too. Although high-voltage cutting technology is relatively mature, it also has great limitations."

"First, there's the issue of scale. We don't need dozens or hundreds of Void Tree saplings, but tens or even hundreds of thousands. Therefore, high-pressure cutting technology isn't suitable."

"However, we still need to solve two problems when using tissue culture methods to cultivate them."

"First, how to maintain the activity of the tissues of the intercepted Void Tree."

"Second, how to create an environment suitable for the growth of the Void Tree Organization."

"The demon army is about to attack us, so I don't have time to stay here and study with you. I can only leave you a piece of the Void Tree for you to study on your own."

As he spoke, Sun Yi took out a glass bottle the size of a human head. This small glass bottle actually exuded the aura of a third-level spiritual weapon.

Sun Yi directly used the Purple Extreme Flame to sterilize the inside of the glass bottle at high temperature, and then cut a branch of the Void Tree and put it in it.

After this branch of the Void Tree was cut off, its vitality quickly dissipated. Sun Yi hurriedly injected fifth-level spiritual water into the glass bottle, and also blended in the essence of the spiritual water, wood-attribute true qi, a little powder made from the grinding of small treasure scales, and ten top-grade wood-attribute and water-attribute spiritual stones.

"I've carved a superimposed soul-locking formation into this bottle. I've created an environment inside that possesses spatial power and wood-attributed true qi."

"I've tested it, and it can significantly delay the withering of the Void Tree. You can conduct research based on this idea."

"If you need assistance from the Formation Hall and the Weapon Refining Hall, please submit a request. Changqing will arrange for their full cooperation."

"Okay, Master, we will definitely research the tissue culture method of the Void Tree as soon as possible." Lin Hai carefully took the glass bottle.

"Okay, I'll leave this task to you." Sun Yi said and disappeared instantly.

When he appeared again, he had already arrived at the monitoring department. He saw Elder Qin Chu looking at the big screen in front of him with a very serious expression.

"I've met the leader!"

Seeing Sun Yi coming, the disciples in charge of monitoring greeted him respectfully.

"Okay, you have worked hard, Minister Qin, how is the situation?" Sun Yi came to Qin Chu.

"The demon army from the Endless Icefield and the Death Desert will arrive in an hour at most. We have already arranged for Xiao Qi and the Big Dipper Star Lord to take some experts to the northern war zone."

"Dean Yang Yuan and his team have already arrived at the Eastern War Zone. The disciples of the War Hall have also set off. They have basically arrived at the war zone. The cultivators from Qingyun Continent are still on the move."

"This time, the demon tribe is larger in number and more powerful. Although we have transferred a large amount of supplies from the Wanling Continent, it is still far from enough."

Sun Yi said seriously, "It doesn't matter if it's not enough. Use whatever you have. Don't save. When the war starts, go all out."

"Still follow the previous tactics and give priority to using the Void Demon-Slaying System and War Puppets, and notify all departments to prepare for battle." Sun Yi also saw the densely packed demon army on the big screen. The scale was more terrifying than any he had seen before.

"I really don't know where so many monsters come from in this world." Elder Qin Chu sighed.

"Don't worry, no matter how many demons come, we will definitely be the victors in the end. You continue to be in charge of surveillance, and I will also set off."

Sun Yi did not stay in the sect. He is now also the top fighter of Qingyun Sect. Only on the battlefield can he exert his strongest combat power.

After leaving the sect, Sun Yi went straight to the northern war zone.

At this time in the north and east of Qingyun Continent, the demon army covered the sky and the sun. There were birds in the sky and beasts on the ground. The number of demons was countless.

In the endless ice field, a huge ice turtle was flying as fast as a hill. On its back was a huge palace, and a powerful aura emanated from inside.

At this time, in this palace, sat a group of human bodies with dragon heads and other human-shaped demon kings.

The aura emanating from each demon king has reached the fifth level, and there are more than one hundred and twenty of them, including ten peak fifth-level demon kings.

They are much more powerful than the demon tribe that Fengjian and his group used to intercept Sun Yi and his group.

The ten fifth-level peak demon kings are all Ice Dragon Demon Kings. The one with the highest status among them is the great elder of the Ice Dragon clan, who sits in the main seat.

"We are about to come into contact with the human race on Tianyuan Island. Although our forces have taken the initiative, we still have to be careful and not be like the Wind Dragon Clan and the Red Dragon Clan." Elder Bingpo looked at the demon kings with a serious face.

"Great Elder Bingpo, you are too cautious. How could we end up like the useless people from the Red Dragon Clan and the Wind Dragon Clan? Don't worry, there will be absolutely no problem."

"During the battle, we must be careful. At least three fifth-level demon kings must be present. On the battlefield, we must prioritize dealing with the human cultivator with dragon blood, followed by the human cultivator with the ability to teleport."

"They are the main targets this time, so they must be prepared at all times."

"it is good."

The mighty demon army rushed forward quickly, and soon a desolate land appeared in front of them. The land was dark red and was completely soaked in blood. There was still a strong smell of blood in the air.

Just looking at this devastated land, one cannot tell how many demons are buried here.

In front of this area, a huge barrier appeared in the sight of these monsters. They all knew that behind this formation was Tianyuan Island.

Elder Bingpo has appeared in the void with a group of powerful fifth-level demon kings, and his majestic spiritual sense is pressing forward.

"This is the battlefield area outside the human race's formation, right? I want to see if the methods of the Tianyuan Island humans are really as powerful as the legend says."

"All troops attack!" Great Elder Bingpo gave the order for the entire army to attack without any hesitation.

woo woo woo...

A low charge horn echoed above the demon army, and the next moment, the mighty demon army rushed towards the Wanbao Killing Formation.

Boom boom boom…

Countless monsters rushed forward, and the heavy footsteps made the earth tremble. The dense army of monsters rushed towards the Wanbao Killing Formation like a tide.

On the combat side, Gao Shou stared seriously at the demon army that was rapidly rushing towards the Wanbao Killing Formation. He did not immediately give the order to attack, but waited until the demon army rushed to the side of the formation before giving the order to attack.

"Void Demon-Slaying Formation activated!"

In an instant, the Void Demon-Slaying System that had been prepared long ago was activated. Outside the Wanbao Killing Formation, explosive talismans appeared out of thin air around the monsters.