The Crown Prince was overjoyed. He had long known that Master Nan was quite talented in agriculture, but he never expected that he was also proficient in craftsmanship.

"Tell me in detail," the prince asked curiously.

Song Hanyan finished a bowl of wine.

"The waterwheel, my wife gave the blueprints to Lu Ban, and Lu Ban made it himself."

The prince then took out another piece of paper from his robes.

"What about this one?"

Song Hanyan glanced at it and said, "The curved plow was still made by my wife, but she was only responsible for drawing the design. The details and production were all done by craftsmen."

The Crown Prince was pleasantly surprised, "I never imagined that Master Nan possessed such great talent!"

He tugged at Song Hanyan's sleeve, "Come on, let's go see Lord Nan."

Song Hanyan: ......

The group arrived at the General's Mansion, accompanied by the Minister of Works.

The crown prince specially invited the person over.

The Minister of Works didn't understand why he had been pulled over when the Crown Prince was just visiting.

The crown prince was so excited that he didn't have anyone announce his arrival and went directly to the backyard.

Upon seeing the large characters on the plaque, the crown prince paused in surprise.

No wonder Song Hanyan ran to the Crown Prince's residence to avoid trouble.

This is a serious offense.

The person from Nanjing University is truly a fascinating individual.

The Minister of Works, who followed, felt that the words on the plaque were familiar, as they were somewhat similar to those at the entrance of the Ministry of Works.

The crown prince then realized that something was wrong.

He coughed. "Don't blame me, I was just a little anxious."

"Well, let's wait in the front hall."

Nanzhi was in the study pondering other things.

The water cart is ready, and it costs 300 taels, which is cheap, but this way, we won't make much money.

She felt at ease knowing that the No. 1 Restaurant under Heaven was run by Little Li San'er.

Xiao Tao rushed in, "Madam, the Crown Prince and the Minister of Works have arrived and wish to see you."

Nanzhi paused for a moment, "She's already taken leave, what could she possibly need at this time?"

Nanzhi stood up, and her lower back throbbed with pain.

That damned Song Hanyan, wait until he gets back, I'll break his legs.

Over here, Song Hanyan in the front hall suddenly felt a chill down his back.

Song Hanyan, who never liked drinking hot tea, picked up a cup of hot tea and gulped it down.

Nanzhi changed her clothes before coming to the front hall.

"This humble official, Nanzhi, greets Your Highness the Crown Prince,"

"Lord Nan, please rise. I have come today to ask you some questions." The Crown Prince stood up.

As Nan Zhi looked up, she glared fiercely at Song Hanyan, who was sitting to the side.

Song Hanyan looked up at the sky.

Hmm, this ceiling is really beautiful.

The crown prince watched the interaction between the two and smiled to himself.

The Crown Prince found it strange to see him so cowardly.

Peach served another pot of hot tea.

The prince took out two blueprints and spread them out on the table.

"Were these the work of people from Nanjing University?"

Minister of Works Gong Qijun glanced at it, and just one look stirred his heart.

Such exquisite craftsmanship! What is it for? And the blueprints below look like a plow for tilling the land, but why is it curved?

Nanzhi nodded: "Exactly."

The method was provided by the system, but the diagram was indeed drawn by her based on the drawings provided by the system.

The crown prince was thrilled; this trip had truly been worthwhile.

"In Yuezhou, there is a type of waterwheel that can not only irrigate fields, but also reduce the occurrence of floods to a certain extent. On behalf of all the people, I thank Lord Nan."

The prince stood up and bowed to the south branch.

"No, I can't accept this!" Nan Zhi exclaimed in alarm. The Crown Prince was bowing to her—what was going on?

Gong Qijun was shocked to hear this.

The prince then picked up another picture.

Nan Zhi explained spontaneously: "This is a curved plow, which is more labor-saving and lighter than an ordinary plow."

"I have already had it made according to the blueprints, just as Lord Nan said."

Gong Qijun listened with excitement, his gaze towards Nanzhi growing even more intense.

Nan Zhi shifted her body, as if she wanted to say something.

But they didn't know how to start the conversation.

The Crown Prince said, "Lord Nan, please speak frankly about what you have to say."

Nanzhi coughed. "Does Your Highness know that horses and donkeys can mate?"

Crown Prince: ......

Minister of Works: What a strange thing this is.

Song Hanyan said with great interest: "My wife is going to make a move again."

Nanzhi felt embarrassed; who would have thought that such a great nation wouldn't even have a mule?

The laws of the Great Central Plains are strict. Horses are military equipment. They can be purchased by noble families and ordinary people, but the foals born must be registered.

The mating and sale of horses must be reported.

This resulted in no one daring to make money off horses.

Not to mention that ordinary people simply cannot afford horses.

Donkeys are a common animal, found mostly in rural areas.

No one has ever tried to allow two animals to reproduce and thrive.

Nan Zhi ignored the expressions on their faces.

"When a horse and a donkey mate, the resulting animal is called a mule. It is stronger than a donkey and has more endurance than a regular horse."

"It can be used not only as a means of transportation, but also for carrying goods."

"It's cheaper than a horse, but there's one problem: mules can't reproduce."

The crown prince was surprised. If this was true, he could save a lot of money in the future.

"How did you know, sir?"

After all, the Central Plains has never had one before, and these are two different kinds of animals. Is it really feasible?

Without batting an eye, Nanzhi lied: "I read it in a travelogue from another country."

She paused for a moment, then said, "Um, the book is lost."

"I will go to the Ministry of War right away!" The Ministry of War has a designated person in charge of horse breeding.

The crown prince left in haste.

Nanzhi sighed; such a great country didn't even have a mule.

She turned her head and saw the Minister staring intently at her.

My dear reader, there's more to this chapter! Please click the next page to continue reading—even more exciting content awaits!