Another seven days passed.

The Level 2 iron mine at the bottom of the Doomsday Abyss has been fully mined, yielding a total of 110,000 units of iron ore.

All the slaves are now excavating the Level 2 copper mine.

Once the copper mine is fully mined as well, it's time to officially leave the Doomsday Abyss.

...

According to the original plan, he was supposed to attend the gathering today.

But...

There was an unexpected situation, and today's gathering was temporarily canceled.

Since last night, dozens of tornadoes have been raging across the wilderness, advancing with abandon. Any train or monster caught up in them gets thrown high into the sky, followed by a free fall.

In the wasteland.

At this moment, many trains are racing against death, avoiding the tornado attacks, and even the monsters are running wildly. The Doomsday Abyss is safe, unaffected by the tornadoes.

"Oh well..."

Chen Mang shook his head, not thinking too much about it. Missing this gathering was no big deal; there's always the next one. It wasn't urgent to miss a few days. Just as well, these past few days, a lot of iron ore were mined, and it's time to upgrade the remaining parts.

He got up and glanced at the train compartment, finally focusing his gaze on the "single bed." This was a part he snatched from Master Kun, an unremarkable white-grade part.

Now that there are more resources, he could give it a try. Who knows what supermodel effect would emerge if the single bed were upgraded to Level 10...

So he got to work.

After consuming 4,400 units of iron ore, he now had a Level 10 "single bed."

...

The upgrade effect is an increase in comfort.

The bed has changed from a hard plank to a soft mattress, with adjustable softness.

As for the supermodel effect...

-

"Single bed Level 5 supermodel effect": Pillows and three-piece sets can be freely chosen, such as buckwheat pillows, silicone pillows, jade pillows, etc.

"Single bed Level 10 supermodel effect": Provides higher sleep quality and prolongs life.

-

"... Huh?"

Chen Mang looked at the Level 10 supermodel effect of the single bed, his body slightly rigid, prolonging life? Isn't that a bit exaggerated for a white-grade part?

He had heard about life-prolonging single beds more than once, with many unscrupulous merchants selling such things in the previous world.

But encountering an effective one, this was a first for him.

However, he quickly calmed down. In the apocalypse, prolonging life is a pseudo-argument; who dies in the apocalypse because of reaching the end of their lifespan?

But even so.

He was still satisfied. Having it was better than not.

Furthermore...

The single bed is only Level 10; he can continue to advance with Unlimited Upgrade. At Level 20, he can obtain a third supermodel effect. If resources allow in the future, can he raise this part to Level 100? Even Level 1000?

Is it possible to gain the effect of immortality?

The path to immortality lies in this bed.

"Pretty good."

Chen Mang smiled contentedly, then looked at the next part, the "Pure Water Filter." It was called the Pure Water Filter, but after he upgraded it to Level 2, it no longer required filtering.

A bottle of mineral water could be produced with just a slice of bread.

After consuming 4,300 units of iron ore and upgrading to Level 10, he gained a new supermodel effect.

This part had no strengthening with each upgrade, remaining the same as before, with changes coming only from the upgraded supermodel effects.

-

"Pure Water Filter Level 5 supermodel effect": Long-term consumption can effectively remove kidney stones.

"Pure Water Filter Level 10 supermodel effect": Long-term consumption can slightly enhance physical fitness.

-

"Hmm?"

Chen Mang raised an eyebrow, reasonably satisfied. Paired with slices of bread, long-term consumption for a few months, combined with high-intensity work, should greatly improve the physical fitness of his slaves.

Then he spent another 500 units of iron ore to upgrade the "Crafting Station" to Level 2.

It can craft Level 2 Energy Stones.

5000 iron ore each.

The effect is ten times that of the original, equivalent to 10 Level 1 Energy Stones, just without the replacement process. As train parts gradually increase, and energy consumption intensifies, this is a more practical and durable solution.

This part is sufficient at Level 2; he won't need higher-level Energy Stones for a long time, and even Level 2 Energy Stones are absolutely excessive.

Generally speaking.

No Level 2 train would use Level 2 Energy Stones; where would you find so many energy-consuming parts?

He also consumed 9,000 units of iron ore, upgrading all three remaining "Heavy Machine Guns" to Level 5.

He then consumed 32,000 units of iron ore to upgrade the two newly added Open-air Carriages to Level 3 armor.

At this point—

A fully equipped Level 2 train was basically complete.

...

The sky was already bright. The slaves were carrying pickaxes to the nearby copper mine to start today's work, while Chen Mang stepped out of the train and looked at the train before him, feeling quite pleased.

Altogether 10 carriages.

The first three carriages contain production lines, resources, generators, and some heavy mechanical products.

The middle five carriages are for the residence of the slaves and thugs.

The rear two carriages are newly added firepower carriages.

The ninth carriage is equipped with eight "Continuous Bed Crossbows," and the tenth carriage has four "40-barrel Sakura Fall Rocket Cannons," providing adequate firepower support.

The Constant Star Train lay there quietly like a sleeping dragon.

Chen Mang gently raised his cane.

In the next moment—

All bed crossbows, heavy machine guns, rocket cannons, and the like turned in unison, aiming into the distance. He had absolute control over this train, using it as naturally as his fifth limb.

And now.

On the "Regional Rankings," the score and ranking of the Constant Star had significantly improved.

Chen Mang, inside the train compartment, looked at the score of the "Constant Star" on the regional rankings.

-

"Tieling Wasteland Influence Value Rankings."

"Rank 1": Survival, Level 3 Train, Influence Value 3010.

"Rank 2": Purple Cloud, Level 3 Train, Influence Value 2689.

"Rank 3": Fixed Star, Level 2 Train, Influence Value 2414.

"Rank 4": Profound Turtle, Level 3 Train, Influence Value 2312.

"Rank 5":...

-

Yes.

After these days of development, the Fixed Star train successfully reached third place on the regional rankings, standing out among Level 3 trains.

The main reason is that his current total part level was a full 169 levels, with each level bringing 10 points. The part levels alone gave him 1690 points.

Ordinarily speaking.

A fully equipped Level 2 train would have total part levels around the early 40s, as one of the conditions for upgrading to Level 3 is having a total part level sum exceeding 40.

But he...

Directly hit 169 levels.

He had long surpassed this standard, with just one refrigerator at Level 10. The requirement of a total level of 40 was as trivial as child's play to him.

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