"Ahem..." Yu-shi didn't want to drag the children into adult matters, so she spoke after a moment.

"You are still young, so you have to listen to your mother and father in everything. But your mother must have some misunderstandings about Xiao Xier's family. Once the misunderstanding is resolved, she will agree to let you play with Xiao Xier."

"Really?" Brother's eyes were full of stars.

"Can the misunderstanding between mother and little Xier be resolved this afternoon? Grandma said she would take us to see aunt in the afternoon, so I want to play with little Xier in the afternoon!"

“Puff——” Yu was so touched by his pair of innocent big eyes that she taught him patiently.

"Oh, I have to ask for permission before I do anything. If your grandmother agrees this afternoon, I will play with Xiao Xier."

"Wuhu! Then I'll go back and pack up and take all my favorite toys with me! By the way, Daddy said that Xiao Xier likes shiny gold things, so I'll take everything with gold!"

"Okay, okay, there are many toys in my aunt's yard. I'll pick one in my aunt's yard first, and then pick another one in my own yard. Bring them all over to play with Xiao Xier!"

Youshi walked ahead with her little kid, smiling brightly. Her brothers and cousins ​​followed behind her. They were a little older and not as noisy as Xiao Ge'er, but they all had knowing smiles on their faces.

…

After lunch, when the eldest and second uncles came back from the front yard after finishing their work, they heard that the old lady wanted to go to the North Fourth Courtyard to see the newly renovated courtyard of the Sheng family. The eldest and second uncles of the Li family had not even sat down to warm their butts when they followed the crowd to the North Fourth Courtyard.

After all, Li Zhenyi couldn't explain the matter clearly with words, so everyone just knew that they were diverting hot spring water into the house to increase the temperature. But everyone knew in their hearts that a yard could not change much in just a few days.

Rather than seeing the new look of the yard, everyone wanted to see little Xier who hadn't been seen for a few days.

The second uncle was always lively. When he heard that my younger sister had transformed the house into a warm and cozy one, he smiled and said, "My younger sister has been staying in the capital for so long. Has she learned the exaggerated techniques of those literati?"

"I heard that even in the Imperial Palace, only a few nobles had ground heating installed in their gardens. It is said that in order to gather heat, most of the warm rooms in the palace are small. However, the room in the North Fourth Courtyard is very spacious, and even using charcoal-burning ground heating will not have much effect. It would be even more difficult to use spring water for heating."

"But Sheng San has always had a lot of wonderful ideas. He is bold and daring, which makes him better than many bookworms who only talk about military affairs on paper."

My second uncle didn't have high expectations for the house renovation. He just wanted to go over and see what the Sheng family needed and have someone send it to them.

He glanced at his wife and saw that she had a dark face and was a little puzzled. He planned to ask her about it later.

The uncle beside them listened to their conversation with a smile on his face. When they were about to reach the North Fourth Courtyard, he asked the maid to bring some incense-scented handkerchiefs for the women to cover their mouths and noses. He himself took out a handkerchief and tied it around the old lady's face.

He spoke and behaved calmly, and it was obvious that like everyone else, he did not take his younger sister's suggestion of house renovation too seriously.

Of course, the relaxed expressions on everyone's faces disappeared the moment they stepped into the North Fourth Hospital.

Because the moment everyone walked in, not only did they not see the mist blowing in their faces, they couldn't even smell the pungent smell of the spring water at all!

Everyone was shocked and stopped to take a closer look. My second uncle was the one who couldn't stop talking. He was the first to find the problem and walked to the spring not far away. They gathered around the newly repaired simple ventilation tower and exclaimed:

"My goodness! Is this still the Fourth North Courtyard? I remember the turbid smell of this spring, which could be smelled from a long distance away! Do you use this thing to expel the mist?"

This simple ventilation tower is actually a small exhaust duct built by Nancy Sheng using green bricks. It discharges water vapor upward through the combined effects of wind pressure and heat pressure.

To modern people, it is just a simple device, but to my second uncle, an ancient man, it is extremely novel. He stood there and kept muttering to himself:

"Oh! I knew that Sheng San looked stupid, but he was actually very smart. Look, he really learned something useful! I didn't expect that he could just fix a pipe. This yard really doesn't stink anymore!"

"Great! Although the nearby counties are rich in hot springs, they are also suffering from the foul smell of the hot springs. Many weak people who stay near the springs suffer from dizziness and vomiting. If you can use this method..."

My second uncle has many businesses. When he saw that the Sheng family's ventilation tower was so useful, he first thought of commercial use.

Countless ways to make money suddenly came to my mind, and I was planning to talk to the three boys later. Maybe if the two of them cooperated, they could make a big profit at the beginning of the year.

He was lost in thought here when suddenly a series of louder screams came from the main house.

"Grandpa! My old man hasn't woken up yet? It's so warm in Yi'er's room. Isn't it as warm as spring?!"

The old lady couldn't believe what was happening. She stepped into the house to feel the warm air, and then stepped out to feel the cold wind outside. Her face was full of shock.

But unexpectedly, he was slapped on the head by someone and pushed into the house.

"Hey - old woman, you're licking me again?!"

The old lady dodged so quickly that it was heartbreaking. Seeing the old lady walking inside without looking back, he glared at her back.

Who knew that the old woman seemed to have a pair of eyes behind her back, and she locked onto his little expression as soon as she turned her head!