The little one's purse connects the two worlds, turning a desolate village into a paradise.

Zhao Junchen waved to Ya Ya and strode into the house: "Little Ya Ya, didn't Grandpa Fang come with us today? And who are these two?"

Seeing He Miao and Su Yuqing look up, he politely nodded to them.

Ya Ya scratched her little head: "Grandpa Fang didn't come, so he asked me to bring you this notebook. These are my sisters, Sister He Miao, and the one with red hair is Sister Yu Qing."

"Hello." He Miao greeted Zhao Junchen in a casual tone.

The little guy's social circle is expanding; where has he made new friends again?

"Sister He Miao, this is Uncle Zhao, who specializes in selling cement and sand. Last time you told me to take the bus to the building materials market, and Grandpa Fang went with me, but all the lights in the building materials market were off and it was dark... Uncle Zhao helped us solve the problem. Uncle Zhao sells these things."

After speaking, Ya Ya glanced at Zhao Junchen and asked, "Uncle Zhao, am I right?"

Zhao Junchen secretly patted Ya Ya's little tuft of hair: "You're right, but Uncle has a question. You call these two older sisters, so why am I called Uncle? It feels like there's a generational gap. I just graduated."

Upon hearing this, Su Yuqing looked up and glanced at him. She had been busy taking inventory and hadn't noticed that this Boss Zhao was younger than she had imagined, looking like a recent college graduate.

Ya Ya was a little stumped by the question.

He glanced at Zhao Junchen and then at He Miao and the others.

That's right, Boss Zhao looks even younger than the previous clearance sale guy, so why is he called an uncle?

Zhao Junchen watched as the little guy's face gradually turned red, and gave up his intention to tease the child: "Oh, it's nothing, I was just asking casually. You can call me whatever you like."

"Let me see what the old man wrote and what I want to buy."

Ya Ya blushed as she handed over the notebook, then carefully examined Zhao Junchen again, and whispered, "Brother Zhao, can I call you that from now on? I didn't mean to call you uncle."

"Okay, little Ya Ya, let me see what your grandpa wrote first." Zhao Junchen didn't expect the little one to be so serious. He secretly patted Ya Ya's head again before looking down at the contents of the notebook.

The thin exercise book was filled with neat and beautiful calligraphy.

I always thought that old man Fang had a very unique temperament, like an artist, and it turns out he really is a cultured person.

He had only ever seen such beautiful calligraphy in calligraphy books.

The first page of the notebook lists the materials and quantities needed for the septic tank. Turning to the next page, there's a sketch with numbers marked on it, and a line of smaller print at the bottom:

Dear Boss Zhao, if there is anything unreasonable or missing, please help us add it. You are a professional, and we trust you.

Zhao Junchen leaned against the table, carefully examining the sketches in the notebook. The more he looked, the more his brows furrowed. He simply took out his phone to check and verify the information.

This drawing shows the design of an old-fashioned single-compartment septic tank from the 1960s or 70s.

Now that new buildings are built, nobody follows the old methods anymore.

Old-style septic tanks have a simple structure, few layers, poor filtration, and usually no strict anti-seepage measures, resulting in a strong odor and an infestation of mosquitoes, flies, and maggots.

This problem is even more pronounced in summer, when sewage is prone to overflowing and flowing into ditches during the rainy season, polluting the soil and water.

It has poor sedimentation and gets clogged very easily, requiring dredging about once a year.

The mainstream septic tanks nowadays are three-chamber septic tanks: the first chamber is for sedimentation and preliminary fermentation, the second chamber is for deep anaerobic digestion, and the third chamber is for clarification and fertilizer storage.

A fully enclosed design and proper waterproofing can effectively prevent odors and sewage from overflowing, thus avoiding pollution of nearby groundwater.

The water from the third pool is fully decomposed and harmless, and can be used directly to water vegetables.

After checking, Zhao Junchen turned to Ya Ya and said, "Ya Ya, I suggest you make this pool a three-compartment one. It's durable, environmentally friendly, convenient, and hygienic. However, it will require more materials, about 30% to 40% more red bricks, cement, and sand than the original design."

Ya Ya nodded: "Okay, I'll listen to Brother Zhao."

Grandpa Fang said that if you don't understand, just nod in agreement. Boss Zhao is an expert, so just listen to him.

Zhao Junchen raised an eyebrow. She trusts him that much?!

Then he must come up with the most cost-effective, money-saving, and reliable plan for little Ya Ya and the others!

Thinking this, he lowered his head and silently fiddled with his phone, contacting professionals to calculate materials and costs.

On the other side, He Miao and Su Yuqing had finished counting all the shoes and hats. Both the workmanship and the quantity far exceeded their expectations, and they were filled with surprise.

"Ya Ya, the villagers made an excellent batch of goods. I'm very satisfied. I'll transfer the final payment to you now." He Miao stood up and walked to Ya Ya's side, her gaze inadvertently sweeping over the notebook in Zhao Junchen's hand. Then she added, "By the way, Yu Qing has another order for 500 pairs of shoes. The contract is here. Take it back and let the villagers see it."

"Five hundred pairs!" Ya Ya was so shocked that she instinctively covered her mouth, her eyes wide open.

The previous 150 pairs of ducks made a lot of money, and Grandma Duck was overjoyed. Now there are 500 pairs!

That must cost a fortune!

Two 150 pairs make 300, three...

While the little one was still silently calculating the price of 500 pairs, He Miao had already taken her hand with the little watch on it: "Ya Ya, get your payment QR code, and I'll transfer the balance to you."

Ya Ya pressed the button, and He Miao scanned the code and transferred the money to her.

"I'll share this with you."

The next second, Grandma Duck's excited voice rang in Ya Ya's mind: "Awwwww! So much energy! I can finally transform into human form without any worries!!"

Previously, it had too little energy and had to clean up after the little cub from time to time. It was unwilling to spend energy on transformation at all. It would only use energy to transform when it was craving something. Otherwise, it was just a gray energy ball hiding in its pocket.

"Grandma Duck, how much money did I receive?"

"Eighty thousand! A full eighty thousand! I'm going to get rich!" With a series of howls, Ya Ya was surprised to find that a thin, long shadow had suddenly appeared in her mind. It had five small claws, like a dragon, but its head was bald and had no horns.

"Little cub, do you see my magnificent body? I'm not a duck!" Jie Chi coiled up and raised its head high.

"Grandma Duck, how come you're a gecko!" Before she could even react to the sudden influx of 80,000 yuan, Ya Ya's attention was drawn to the changes in her mind. She shook her head vigorously, as if trying to shake off the slippery gecko in her mind.

Jie Chi: ...

"Ya Ya?"

Seeing that Ya Ya was standing still and in a daze, He Miao called out again.

"Ah, Sister He Miao, I received it! Wow, so much money! How come there's so much?" Ya Ya quickly replied after realizing what was happening.

"Thirteen thousand is the balance of the last order, two thousand is the labor cost for processing the fodder, and sixty-five thousand is the prepayment for the next order of five hundred pairs of shoes." He Miao said, while pulling the notebook from Zhao Junchen's hand and writing the numbers on the last page.

She was worried that Ya Ya wouldn't remember.

"I've written it all down here. You can show it to Grandpa and the others later." After writing, He Miao stuffed the notebook back into Zhao Junchen's hand.

"Thank you so much, Sister He Miao!"

"Oh, right, this box on the table was brought by your shop manager uncle. He said it's for the two entrenching tools we bought for you before." He Miao pointed to the box on the table again.