"So tired..."

About half an hour later.

Chen Mang took a deep breath, leaned back in his chair, lit a cigarette with some fatigue, and watched the light blue smoke drift out through the skylight. Although his body was a bit weary, his eyes were filled with satisfaction.

The environments inside the eight "Gates of Space" all needed him to design bit by bit.

He designed each space differently.

Some had a water theme, some had a garden style, and he even built over 5,000 single beds, placing them in the dormitories. A single bed cost only 1 unit of wood, which was quite cheap.

During this period, he hadn't slept at all, especially during those nearly 30 hours of mining in the "laboratory." He didn't rest, but rather stood excitedly in the train room, looking at those iron mines and occasionally visiting the Armor Research and Development Center to see how Ai was progressing with the instrument.

This was a great opportunity.

The Constant Star Train had been developing for several months, but this was the biggest opportunity he'd encountered, and it determined how far the Constant Star Train could ultimately travel.

Just like before Doomsday.

People who had a few million in their pockets often earned it bit by bit, saving diligently through hard work; their motto was to believe that the Heavenly Dao rewards diligence.

But those with tens or hundreds of millions in their pockets...

Most of that money wasn't earned.

It was like it just fell from the sky.

Like it was picked up for free.

In a daze, Chen Mang wasn't sure what he was thinking; he only heard the chatter of many residents outside the window, sounding like white noise. He lightly tapped his fingers, wishing to ask Ai to invite Ji Chuchu over.

He wanted to celebrate a bit.

But perhaps due to fatigue, this thought only echoed in his mind, and he felt so drowsy he couldn't even open his mouth.

He fell into a deep sleep just like that.

...

"He finally fell asleep."

Ai, from the Armor Research and Development Center, mumbled while fiddling with the instrument: "I thought Master Mang had turned into a robot like me and didn't need to sleep."

Then she continued to seriously study the instrument in front of her.

On her cheeks, two screens displayed the words "Recognition" and "Seriousness."

This instrument was handled with great care during disassembly and transport, maintaining its perfect condition.

No problems were detected.

He was checking whether every circuit and pipe was intact, as the database indicated that core energy posed a risk of explosion, requiring a colored gas leak test before activation to avoid any explosion risks.

"This is really a good thing..."

"This thing can manufacture up to Level 4 iron ore."

"What a pity, if that experiment had been delayed just a bit longer, and they had managed to research how to manufacture Level 5 iron ore, one can only imagine how happy the Train Captain would be."

The Train Captain was quite happy these past two days.

The smile on his face was uncontrollable.

When the Train Captain was happy, he was happy too.

...

"Brother, Master Mang really can't keep building like this."

Biaozi looked towards the environment in Resident Area No.1 with a somewhat complicated expression: "Look at this, with small bridges and flowing water, old vines and crows in twilight – it's just missing a bit of wildlife, maybe some sparrows, and you wouldn't think it's a residential area!"

"This is practically a villa district!"

"I never lived in such places before Doomsday, and now they're living in them after Doomsday?"

"Compared to this, the hard sleepers in our carriage feel a bit uncomfortable."

He wasn't really jealous.

He also hoped the residents lived well, so they could mine more diligently, making the train stronger.

It's just...

This life is also just too good!

That's because the Train Radio can't broadcast photos and videos, so the slaves on other trains can't see the information in Train Radio. Otherwise, if any of this were broadcasted, a lot of train slaves might escape their trains to head toward the Constant Star.

Of course, just speaking hypothetically.

In high-grade areas, there were basically no incidents of slave revolts and escapes anymore.

One reason was that many slaves in the high-grade area trains were brought over from lower-grade areas, and they had been adapting together for so long, they were already accustomed and familiar.

The second reason was.

This is a high-grade area...

Even if they successfully revolted and killed the Train Captain, they still couldn't inherit the train and would just wait in place to die. Could they pull out a Train Order and establish their own domain?

A Level 1 train trying to establish its domain in the Level 12 monster's blue zone would give even Chen Mang, with zero authority, a headache.

Much less talk about escaping.

Leaving the train means becoming walking protein, any monster could easily take them as snacks to satisfy their cravings.

It's winter now.

Just in time for winter rations.

"Take it easy."

Old Pig didn't have much to say about this: "The Constant Star Train is always developing, and every aspect will certainly improve, not just the train's strength."

"It also includes the residents' comfort, work enthusiasm, avenues for advancement, currency stability, and cultural heritage, among other things."

"Haven't you noticed?"

"Master Mang has been preparing for the worst-case scenario."

"What scenario?"

"The only heritage of human civilization," Old Pig paused and continued: "If with the increasing intensity of Doomsday, it's destined that everyone will die here, then the Constant Star Train will serve as the only heritage of human civilization to preserve its continuation."

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