"Kun Xing has seen two sisters." Seeing the second daughter coming, Kun Xing immediately greeted him.

"I've seen the two princesses!" Seeing that the princess of the dynasty actually saluted the two of them first, Sun Xiuxiu and Yang Xue were shocked in their hearts, and they didn't care that the child in their arms was about to salute.

"Sister can't help it, hurry up and excuse me!" Liu Hongjian was on the side, where did Kun Xing dare to let Sun Xiuxiu give her a salute, and hurriedly stepped forward to hold his arm and said.

"Ahh

"Little Aotian let my sister hug you, okay?" Kun Xing smiled at the smile in Yang Xue's arms.

Yang Xue was also tired of hugging it, so she handed over the child to Kun Xing, who had lived in the deep palace for a long time and saw that the child liked it.

"Sister, Zhaoren also wants to hug his little brother." Zhaoren, who had just washed his hands, trotted over and pulled Kun Xing's arm.

"Sister, you can't hold it yet, show you." Kun Xing squatted down and teased Xiao Aotian with Zhaoren.

"Daddy—woo-woo-hug." Xiao Aotian was not happy and was about to cry, so Kun Xing had to get up and hand the child to Liu Hongji.

"I've been a little busy for my husband these days, Xiu'er, don't stay at home all the time, now the two princesses are here, you can go out for a walk together if you have nothing to do." Liu Hongjian said to the four of them while coaxing the child.

Shao leaned, saw a few women chatting about family life, Liu Hong gradually ran out of opportunity to interject, so he went out and turned left to find Uncle Chongzhen.

The uncle's new residence has been renovated, compared with the spacious Qianqing Palace, this courtyard is a little small but extraordinarily chic, the furniture is all new, and the windows on both sides are also polished glass.

After the report, Liu Hong gradually entered the courtyard, and Chongzhen was sitting in the pavilion in the courtyard reading a book.

"Youming is here." Chongzhen put down the book in his hand, and saw that this book was nothing else, it was "Heavenly Creation" written by Uncle Song.

"Is the emperor interested in engineering?" Liu Hong teased.

"Hehe, after 20 years of busy work, once I was free, I didn't know what to do, and I happened to see an idle book in the house, so I flipped through it." Chongzhen took a sip of the tea on the stone table.

"This is not an idle book, it is the treasure of our Xishan and even Daming!" Liu Hong said with a smile.

Thanks to Liu Hongji's blessings, Song Yingxing and Xu Guangqi's works "Tiangong Kaiwu" and "The Complete Book of Agricultural Administration", which have not been funded and not valued by the imperial court, have been published and distributed with the support of Liu Hongji, and almost everyone in Xishan has a copy.

"I want to plant some vegetables in this yard, can Youming find some seeds for me?" Once a busy person is idle, it is like a person who is quitting smoking and has a smoking addiction, and Chongzhen's heart is empty.

"It's easy to say, the minister will send some over in a while." Moving more is good for the body, and Liu Hong gradually agreed.

The two chatted and chatted about the steam engine that Liu Hongjian and Song Yingxing were trying their best to improve, Chongzhen didn't know why, he always listened to Liu Hong's gradual chanting of this artifact, so he simply got up and went to the armory on the mountainside with Liu Hong.

Steam engines have been continuously experimented and improved, and now it is possible to drive a flywheel with multiple cylinder groups linked together.

Since the original intention was to use it for warships, Song Yingxing has now begun to install propellers according to the drawings.

There is also a model of the No. 1 Fu ship in the lab, and Song Yingxing is fiddling with how to assemble the steam unit into the bottom of the cabin.

"The emperor has arrived!" Suddenly there was a duck cry outside the house, Uncle Song was startled, and quickly ordered someone to turn off the rumbling steam, and he took a cloth and wiped his oily hands casually, and trotted out to salute.

"Song Aiqing is flat, I want to come and see the steam engine." Chongzhen was dressed in regular clothes and said to the craftsmen who knelt on the ground with a smile.

Song Yingxing invited Chongzhen into the laboratory with a nervous face, and quietly glared at Liu Hongjian again, meaning why not notify him in advance, let him change into clean clothes!

The steam engine was started, and the connected propeller device immediately began to rotate, and the whirring wind formed an air flow, and Chongzhen secretly smacked his tongue.

"Your Majesty, the steam engine can now drive the propeller, and the propeller will rotate after entering the water to produce a forward propulsion.

If mounted on a warship, it can free the ship from the shackles of the sails and sail even against the wind. Song Yingxing was now full of energy, pointing to the steam unit in operation.

"Your Majesty, this is the power of machinery!" Liu Hong gradually straightened up.

Chongzhen nodded and looked around the steam engine, but he didn't understand what the principle of the steam engine was, so he asked Song Yingxing.

The two of them asked and answered, but they gradually put Liu Hong aside, and it took Chongzhen to roughly understand it after talking for a long time.

So in the next few days, Chongzhen seemed to have found the direction of his life, and changed his clothes early every morning and walked around to find Song Yingxing.

Even the books he read have become textbooks for the School of Engineering, and Liu Hongjian was worried that Chongzhen would be bored, so he always went to take a look after dealing with the things in hand.

Later, Chongzhen actually thought that Liu Hong was gradually an eyesore, and bluntly said that he had nothing to do to accompany Kunxing and Zhaoren to walk more, and Liu Hongjian was also full of black lines.

In the past few days, he has been tossed by Zhaoren's little girl, and early every morning is a good time for him to sleep lazily, and his wife knows Liu Hongji's habit and does not dare to call.

But Zhaoren didn't care about this, and got up early in the morning and quietly entered Liu Hongji's bedroom and pestered him to take him out to play.

Once Liu Hong gradually got up and came out, he would always see Princess Kunxing standing in the courtyard and smiling at him.

Sun Xiuxiu and Yang Xue knew what the emperor meant, and they had already regarded Kunxing as their sister in their hearts, and the two were busy with their children, so they deliberately left space for the two.

Liu Hongjian also acquiesced to this, Kun Xing had a quiet personality and never bothered Liu Hong when he was busy, and the two rarely had some leisure time to get along.

To be honest, when Chongzhen first mentioned marriage, Liu Hongji's heart was really pounding, and he was only an earl at that time, which was like a turtle in later generations who suddenly got the favor of national leaders and wanted to marry his daughter to him.

And the Daming ritual system is complicated, at that time he was still worried that if he really married a princess and came back, he would always be restrained when he did something, but now that he is the king of the county, he no longer worries about this.

Liu Hong gradually didn't know what Kun Xing liked about him, and in his heart, this guy would be a peerless single dog in the future.

But during this time, he also understood that Kunxing's girl was not because of Chongzhen's instructions to fall in love with him, this is a delicate and gentle girl, who is like a fairy in the world.

Beauty loves heroes, Liu Hongjian had to explain in his heart.

Such days lasted for half a month, and Liu Honggradually accepted Kunxing, who was by his side every day like a little sister next door.

One day, Chongzhen summoned Liu Hongjian to see him, and Liu Hong gradually entered the yard to find that the uncle was dressed in ordinary clothes, and was carrying a hoe in the yard to loosen the soil for the newly emerging vegetable seedlings.

"Youming, Kunxing is not small, I mean, on the eighth day of the first month of next month, the Ministry of Rites will handle the marriage of the two of you."