Xiyu thought about it carefully.

If I remember correctly, it was at this time that Cao Cao, who was in Yanzhou, began to communicate with the Han court.

Just hearing what Cao Cao said now, I guess he hasn't contacted the court yet.

There is a key figure missing. Who is it?

It's been so long that Xi Yu can't even remember some of the characters at certain points.

However, it's not that important.

When it's time to appear, that person will naturally appear.

Xi Yu smiled at Cao Cao and said nothing more.

The most important thing right now is to ensure that the harvest of the fields will not be affected by the weather.

After returning to Changyi with Dian Wei, Xi Yu began to recruit craftsmen in the name of Cao Cao while drawing out the drawings overnight.

The next day.

The sky is bright, the county government compound.

Xi Yu took the completed drawing and glanced at the summoned craftsmen.

They are all craftsmen affiliated with Cao Ying. These people usually build some vehicles and weapons in Cao Ying.

Seeing that there were a lot of people, Xi Yu directly handed the drawings to the leading craftsman.

"This is?"

Ma San looked at the drawings handed over by Xi Yu and was stunned for a moment.

He is a well-known craftsman in Cao Ying, but this is the first time he has seen such detailed drawings.

Just one glance made Ma San a little shocked.

The drawings in front of me are too detailed, and every component is clearly marked.

"Sir, what is this thing for?"

One craftsman couldn't help but ask.

They usually build some weapons and other things, but the thing in front of them looks quite weird.

It doesn't look like a chariot, but the baffles look a bit like a trebuchet, just a little more complicated.

"This thing is called a waterwheel. It is built on a mountain stream and can divert water to irrigate farmland."

For these craftsmen, Xiyu didn't hide anything.

These craftsmen are needed to build the waterwheel. After this thing is built, these craftsmen will understand its function.

If he remembered correctly, the prototype of the waterwheel appeared around this time.

It's called Chuanchai, and it was built by Ma Jun from the Wei Dynasty.

If Ma Jun can be found, Xi Yu thinks that many of his ideas will be realized.

However, we are still far away from establishing the Wei State!

If I remember correctly, Ma Jun is from Fufeng, Yongzhou.

However, among the thirteen states of the Han Dynasty, Yongzhou has already been divided, and Fufeng now belongs to Sili.

If you want to find Ma Jun, you have to wait a few more years.

……

Xiyu and Dianwei were busy building the waterwheel with the craftsmen.

On the other side, Cao Cao was looking at Mao Jie in front of him calmly.

The latter was a talent who came to serve Cao Cao after his great victory in Yanzhou. However, the first strategy offered to him by the opponent years ago was somewhat overlapping with Xi Yu.

Naturally, the farming strategy is not as detailed as Xiyu's.

Cao Cao felt that although this person was talented and capable, if he really wanted to compare him with Qi Xiyu, he was still far behind.

Therefore, he later regarded Mao Jie as a staff member.

Ask the other person to help with some things on weekdays.

"Xian Xiao, you said before that you would not obey the Emperor's orders, but now I can't even do it. What should I do?"

Cao Cao asked casually.

He is not in a hurry to please the emperor at the moment. On the one hand, Li Jue is in Sili, and Guo Si will never let him please the emperor.

On the other hand, he has just established his foothold in Yanzhou, and it is not the time to completely start expanding.

The reason why he was eager to establish a relationship with the court was because his previous attempt to impress Xi Yu was blocked.

Knowing that Fengyi was busy building a device to divert water, Cao Cao felt mixed with joy and sorrow.

Fortunately, Xi Yu can always bring him surprises in times of crisis.

What's worrying is that now he can't even present a performance to Xi Yu.

Mao Jie had naturally heard of Xi Yu, and when he heard Cao Cao say this, he had guessed what he was thinking.

Although he was a little envious, since he learned about Xi Yu's military garrison strategy, his envy had been suppressed in his heart.

"My lord, I heard that Zhang Yang in Hanoi seems to have an old relationship with Li Jue. My lord can contact Zhang Yang first and then make an offer. Then he can make friends with Li Jue and others. There should be no problem in opening up the relationship with the court."

After Mao Jie finished speaking, Cao Cao's eyes lit up.

Then he nodded: "In this case, this matter will be left to Xiaoxian!"

……

Early July.

A huge waterwheel landed in the Yanzhou mountain stream.

The water flow in the mountain stream drives the waterwheel to start operating. The flap drives the water into the waterwheel. The water flows begin to go straight to the farmland along the mountain stream ditch.

Seeing that the water was really flowing, Cao Cao couldn't help but widen his eyes.

"It's just as Fengyi said, water will come to you, water will come to you!"

Now, Yanzhou's farmland, which has been in drought for a long time, can begin to be irrigated, and the entire Yanzhou will no longer have to worry about food and grass.

Cao Cao was overjoyed and became more and more excited.

Soon after, waterwheels began to appear on the banks of the river throughout Yanzhou.

Mid-July.

Mao Jie, who was entrusted by Cao Cao, met Dong Zhao who was hiding under Zhang Yang in Hanoi.

This person was originally a subordinate of Yuan Shao, because his younger brother Dong Wang was under Zhang Miao, and Yuan Shao and Zhang Miao had many differences.

Because Yuan Shao believed the slander, Dong Zhao was afraid that he would be implicated and fled from Yuan Shao's men overnight.

Originally, he planned to go to Chenliu to join his brother, but he was stopped by Zhang Yang who was in Hanoi halfway.

After getting acquainted with Mao Jie, Dong Zhao learned that he was sent by Cao Cao and was a little happy for a moment.

Then the two hit it off immediately.

Dong Zhao began to persuade Zhang Yang to marry Cao Cao, and the latter listened to Dong Zhao's advice after thinking for a long time.

As Cao Cao began to establish diplomatic relations with Zhang Yang, not long after, Li Jue and Guo Si, who were in Sili, did not stop Cao Cao's memorial to the court.

In early August, a memorial came out from Yanzhou and soon fell into the hands of the young Liu Xie.

Inside the Han Palace.

Liu Xie, the emperor of the Han Dynasty, who was only thirteen years old, received a memorial from Cao Cao for the first time.

The young man opened the table excitedly, his twinkling eyes seemed to be glowing with light.

"A memorial to Cao Cao, the pastor of Yanzhou!"

"Xi Yu, who is Xi Yu?"

Cao Cao's memorial first asked how the Han emperor was doing. Although it was some polite words, Liu Xie read it with interest. After all, this was a memorial given to him by Fangzhou Mu.

Then, he saw the text of Cao Cao's memorial.

The appearance of Xi Yu's name made Liu Xie a little confused.
Chapter completed!