Meanwhile, in the modern era.
Gu Sang inexplicably shivered. She looked up at the sun in the sky.
The weather hadn't turned cold, so why did she suddenly feel a chill?
"Goddess, you should keep warm. Don't get sick, okay?"
"Yes, Goddess. I've always wanted to say this: you're dressed too scantily. You'll catch a cold."
Since Gu Sang was about to meet a professor she had previously scheduled an appointment with, she had started a livestream after getting off the car.
However, this livestream wasn't open to everyone; it was only accessible to the Plague City.
This wasn't the first time Gu Sang had given extra lessons to the Plague City. There had been two previous occasions when she had specifically visited industry experts to explain the manufacturing of weapons and tools to the Plague City residents.
Although it was already night on the other side, the people of Plague City were still standing attentively, watching her livestream.
"Today, we're going to visit a doctoral supervisor who is an expert in agriculture, forestry, animal husbandry, and fishery."
These four fields were closely related to ancient life, so the ancient viewers watched with extreme attentiveness.
Gu Sang arrived at the doctoral supervisor's home in the suburbs, just in time to catch him taking a few students up the mountain to observe the planted trees.
Seeing this, Gu Sang followed the group up the mountain.
Along the way, the professor would occasionally quiz the students, asking them to identify the plants on the mountain and explain their uses.
"Come, look at this plant. It's growing very well. Look at its leaves..."
The morning sunlight filtered through the leaves, casting dappled light on the professor as he explained to the students in a steady, unhurried tone.
"This teacher is so kind, and he knows so much. He must have many, many students."
"Wow, so even when people get old, they can still be so elegant and knowledgeable. Much better than those scholars who only spout classical phrases. At least he recognizes the plants on the mountain."
"Oh, so this grass can be used as medicine? I often have headaches, and I remember seeing this grass! We have it here too! Next time, I'll pick some and brew it in water to drink."
"So when fruit is very sour, it might not just be due to lack of sunlight. It could also be a genetic issue. Goddess, can you ask him what grafting is all about?"
The Elder Princess had already arranged for several teachers to sit at the front, taking notes on the knowledge points shared by the professor.
Some literate commoners had also brought paper and brushes, crouching on the ground to write.
Whenever the Elder Princess saw this, she would invite them to write at the tables in the front.
Of course, the Elder Princess didn't prohibit other commoners from learning this hard knowledge. Anyone who liked watching the livestream could come and watch, and ask questions freely.
From these exclusive lessons, the Elder Princess had also identified several commoners who were particularly knowledgeable about farming and agriculture. While others were still confused, these individuals were already able to extrapolate and apply the knowledge.
Their learning speed even impressed Gu Sang, a modern person. Was this the difference between learning geniuses and poor students?
Some modern terms didn't even need Gu Sang's explanation; these few people could interpret them based on their solid professional understanding.
When they reached the orchard halfway up the mountain, the professor, being a researcher, had planted various seasonal fruits for spring, summer, autumn, and winter. It was just the season for some fruits to ripen.
Among the students, a tall young man climbed directly up a tree to pick some fruit for everyone.
After lunch at the professor's home, Gu Sang followed him to the fields.
"Goddess, why are there such tall structures in the fields? And why are they so tightly enclosed?"
"Goddess, what's that white stuff? Is it silk? Cloth or something else?"
Gu Sang glanced over and replied, "These are vegetable greenhouses. By growing vegetables inside, you create a greenhouse space that allows people to eat off-season vegetables."
"The greenhouse roof needs to let sunlight in and be cold-resistant. Generally, they use multiple layers of protective plastic film and some light-transmitting materials to build it..."
Before coming, Gu Sang had read some materials on the subject.
So for these simple questions, she could answer herself without needing to ask the professor.
Just as she finished explaining to everyone, Gu Sang followed the group into a greenhouse.
Inside the greenhouse, there were temperature and humidity gauges, allowing people to observe the internal conditions.
Many fruits had already formed, with each tree heavily laden. Gu Sang casually picked a fruit, peeled it, and started eating.
"What's this oddly shaped thing?"
"Ah! Why is the juice red?"
"This looks like it might be very expensive."
Gu Sang finished the fruit in a few big bites, wiped her mouth and hands with a wet wipe, and then explained to everyone:
"This is a red dragon fruit. It belongs to the cactus family and is a climbing plant. The fruit is very sweet and delicious. It's heat-tolerant, heat-loving, and doesn't do well in low temperatures."
Hearing Gu Sang's description, the ancient people felt increasingly envious. How could there be so many delicious things in the future?
All kinds of plants, fruits, and vegetables they had never seen before.
Being able to eat fresh vegetables anytime, and even eat summer foods and vegetables in winter – it was truly enviable.
They watched the other students take out bags to pick fruits, eating as they walked. The ancient viewers were all salivating.
"They look like they're enjoying it so much."
"I'm so envious of the future, being able to eat so many fruits."
Although the Elder Princess's expression didn't change much, her eyes sparkled with a peculiar light.
Tropical regions, overseas!
Dragon fruit, corn, sweet potatoes, cotton...
These things all came from overseas.
One day, she would definitely send people overseas to bring all these things back!
At this moment, Zhou Qichen squeezed through the crowd and whispered to the Elder Princess.
"Elder Princess, imperial troops have been spotted twenty miles outside the city. As far as the eye can see, it's a sea of soldiers. We can't tell exactly how many troops the imperial court has sent, but it's estimated to be no less than 150,000!"
Pei Changying had been on the throne for less than two years. The court had just stabilized due to Noble Consort Gu's influence, and there were enemy troops eyeing the borders. The vast majority of the troops were stationed at the borders.
Where did so many soldiers come from to attack the city?
The Elder Princess pondered this, her expression unchanged as she instructed, "Don't let the city residents know yet, to avoid causing panic."
"Go inform General Qin and tell him to be on alert."
"The imperial soldiers are just following orders. After all, we're all subjects of the same land. Let's be courteous first and see what the imperial court has to say. If they insist on fighting, then we'll fight."
Zhou Qichen departed to carry out his orders, while Gu Sang witnessed the scene of the Elder Princess whispering with Zhou Qichen. She turned to the Elder Princess with a questioning look in her eyes.
The Elder Princess immediately understood Gu Sang's meaning and gave a slight nod.
"Alright, that's all for today's livestream!" Gu Sang announced.
They had been streaming for several hours, which was more than enough for these people from ancient times to process for a while.
Moreover, the silhouettes of the imperial army could already be seen camping outside the city. Gu Sang decided to leave the remaining time for the Elder Princess to make arrangements.
