In mid-April, as the livestock farm's water supply project was being constructed with great urgency, Li De finally received a piece of news he had been eagerly awaiting.
The data from the human blood donation experiment was complete.
Back during the Months of Deep Winter, Harrison had already reported preliminary data on blood donations.
However, at that time, only about twenty humans had participated in the experiment, so Li De didn't adopt it. Instead, he instructed Harrison to include over a hundred members of the Wild Wolf Gang in the tests.
Now, after nearly half a year of experimentation, this historically significant project for Dawn City's development was finally complete.
Compared to the initial data, the experimental results obtained from testing on hundreds of humans were now free of risks and ready for large-scale implementation.
"Lord Progenitor, a total of 120 people participated in this experiment, divided into groups of three. After nearly six months of testing, the data has stabilized significantly, and we can now proceed on a large scale.
Ordinary humans can donate blood once every seven days, with each donation being 300 milliliters, without any harm to their health. With sufficient food, this interval can be shortened to six days.
As for professionals with higher physical fitness, even Level 5 warriors can recover in just three days. However, due to insufficient data on advanced professionals, more precise figures cannot be determined."
Li De nodded in satisfaction after hearing the report. Although this data wasn't much different from what was reported during the Months of Deep Winter, the results obtained after nearly half a year of comparative experiments were far more reliable than those derived over one or two months.
It seemed that the plan to sustain the vampires could now officially commence.
A flicker of excitement appeared in his eyes.
This plan was finally going to begin.
He had poured countless resources and efforts into fundamentally changing the survival model of the vampire race, aiming to eliminate the hidden dangers that had led to numerous near-extinction crises for the vampires throughout history.
The vampires' survival model involved hunting humans and treating them as food.
This was the nature of the race—neither right nor wrong, akin to wolves eating meat and sheep eating grass.
While this ancient developmental model worked, it was highly unstable and risky.
At first, there might not have been significant issues, but as the vampire population grew, the number of humans they needed to hunt increased monthly.
Once the vampire population reached a certain size, it would inevitably draw the attention of human nobles. After all, large-scale disappearances of people couldn't be easily concealed.
If discovered by the nobility, the consequences would be dire.
In this world, nobles held absolute power, and mage lords were part of the noble class—there was no difference between the two.
This created a vicious cycle: for the vampires to grow, they needed to expand their population.
Expanding the population meant continuously hunting humans, and once too many humans were killed, the nobility would notice.
Once discovered by human nobles, the fate of the vampires would be annihilation.
How could an emerging race possibly stand against the entire human population dominating the continent? A single Transcendent being could easily destroy a newly formed vampire clan.
The failure of the Vampire Progenitor's war against Green City a century ago starkly illustrated the flaws in this developmental model.
Survival wasn't difficult, but thriving was almost impossible.
With the launch of the blood donation plan, the survival model of the vampires, which had persisted for millions of years, would undergo a qualitative change—effectively transforming the vampire race itself.
This was an unimaginably significant event, both for Li De and the entire vampire race.
Only by breaking free from the shackles around their necks could Li De qualify to make Dawn City a prosperous metropolis and elevate the vampires to a truly superior race unafraid of any challenges.
"To minimize potential risks as much as possible, extend the blood donation interval from seven days to fifteen days. Going forward, blood donations will be scheduled every fifteen days."
Li De remained calm and did not become greedy. Although the experiments showed that humans could recover within seven days, that was under controlled conditions. Doubling the recovery time effectively eliminated any remaining risks.
"After the blood donation plan is launched, we must select a group of people for long-term observation to confirm whether there are any undetected risks."
"Yes, Clan Leader." Harrison bowed respectfully.
Li De stood up and walked to the transparent window. Through the glass, he observed the bustling streets filled with vampire architectural style, a flicker of satisfaction in his eyes.
Step by step, they had developed to this point.
When he first arrived in Dawn City, it was desolate and lonely, with only about two hundred vampires living there.
But now, the human population had grown to nearly ten thousand, and the vampire population had doubled to four hundred.
After painstakingly raising these "sheep" for so long, it was finally time to start milking them—and the milk would flow continuously.
On the same day, a notice issued by the City Hall caused a stir throughout Dawn City.
From today onward, every resident of Dawn City would be required to participate in the mandatory blood donation plan.
Upon hearing this news, most residents experienced two emotions: fear and excitement.
The fear stemmed from the City Hall's announcement, which stated that the Saintlight Vampires, cursed by an evil deity comparable to the Creator, needed to drink blood to survive.
Previously, the Saintlight Vampires had an ancestral artifact that resisted this curse.
However, over the long passage of time, the artifact had been corroded and damaged by the evil deity's power, causing the curse to descend upon the Saintlight Vampires once again.
Now, the City Hall required every human to donate blood four times a year as an obligation.
Although the announcement repeatedly emphasized that blood donation posed no harm to human health, the news still caused a massive uproar.
Many people were filled with dread. Were the Saintlight Vampires going to prey on humans like the legendary evil vampires?
In fact, after the announcement was made, the number of residents visiting the Dawn Church to pray noticeably increased. They didn't want to lose the dreamlike life they currently enjoyed.
What would they do if the Saintlight Vampires truly changed?
Fear and unease began to ferment in many hearts.
However, aside from a small number of panicking individuals, most residents still had full confidence in this decree.
They trusted that the Saintlight Vampires wouldn't harm them, and they had absolute faith in the great Lord Kachar.
The authority Li De had established among the residents of Dawn City over this period was unshakable—even by the gods.
Of course, alongside fear, there was also excitement, as blood donation wasn't without reward.
By reaching a certain number of donations, one could earn points—precious points that were more valuable than Gold Pucks in the eyes of countless residents.
Points!!
The envy-inducing, jealousy-provoking points!!
For every ten blood donations, one could earn one point.
Moreover, unlimited donations weren't allowed; each person could donate blood only twice a month, with at least a fifteen-day interval between donations.
This was the second way to earn points in Dawn City, and points were extremely rare.
Currently, only three to four hundred people in Dawn City possessed points—the Security Squad, Logistics Team, and participants who ranked in the top five hundred in the Hero Selection Tournament.
There was no resentment over scarcity but rather over inequality. The deliberate class gap Li De had cultivated made everyone envious.
No one didn't want to bask in the jealous stares of others while openly using privileges akin to those of nobles.
Most importantly, these privileges were accessible to everyone—they weren't exclusive to nobles or a small ruling class.
That's what made people envious. Why could others cut in line? Why could they buy goods first? Why did they get priority when the City Hall recruited personnel?
Inequality created a sense of disparity—a gap every resident wanted to bridge.
They wanted to enter the privileged class too.
Thus, the decree that blood donation could earn points greatly alleviated the fear in many hearts.
If they could earn points, what was the big deal about losing a little blood?
Donating blood ten times to earn one point might seem insignificant, but compared to earning one point per year through farming and taxation, it was considered a generous offer.
The sudden issuance of the decree by the City Hall sparked heated debates among the residents of Dawn City.
Some believed it was a conspiracy by vampires—that these evil creatures were finally targeting humans.
Others, however, dismissed the notion entirely, confident that the vampires had their reasons and there was no need to worry.
Both sides held their own views and argued fiercely in private.
At this moment, a new piece of information emerged: the Security Squad and Logistics Team would be the first to undergo blood donation that evening, and Lord Kachar would personally attend.
This news immediately drew everyone's attention. Though many were worried, hearing that Li De would be present instantly calmed their fears.
They trusted the great Lord Kachar, the towering and benevolent figure who had given them a life of abundance and safety—nothing was more reassuring to the residents.