My apocalyptic heroine has come true

"This is my master, not your master." Xia Xiaochi corrected.

He's only been here for a few hours and he's already starting to compete with her for his master?

But... do men also rob?

Brother Fang Ming must like girls.

Xia Xiaochi was not sure, but when she turned around and saw the somewhat mature sister next to Shi Si, she made up her mind not to let these people call Fang Ming the master.

"boom--!!"

Shi Si was still immersed in the joy of making new gunpowder, but he didn't know that Fang Ming on the other side had already completed the test firing.

The deafening roar of machine gun fire echoed across the sky.

Shi Si looked up at the artillery position in surprise.

This fort...

Wait, this turret is not the basic turret that Shi Si saw when he first came to the Ark Shelter.

Not only has the barrel of the turret become much thicker, but its appearance has also changed drastically since the last time I saw it.

It doesn't seem as simple as just making modifications.

This is an all-around upgrade...

Or, just replace it directly?

If Ark Sanctuary had such great engineers, why did they need him to develop gunpowder?

And...how are the shells loaded in?

Even if it has the ability to teleport, it still requires human operation when loading ammunition.

Could it be that the owner of the Ark Shelter is hiding inside the machine gun at this moment?

Shi Si looked upwards with burning eyes.

The more 'mysterious' scenes the Ark Shelter revealed, the more excited he became.

"Ten kilometers."

Fang Ming retrieved the unmanned reconnaissance aircraft that had been launched.

The new gunpowder made by Shi Si has a range that is twice that of the previous compressed black powder.

This distance is just enough to reach Shelter 2737...

It can be used.

However, the Ark Shelter's sulfuric acid reserves are very low. If Fang Ming wants to mass-produce this type of ammunition, he needs more sulfuric acid resources.

We can only ask our good neighbor, Administrator Xiao La, to think of a solution.

Since Shelter 2737 has existed for so long, there must be quite a few things like lead-acid batteries and sulfates that have been picked up.

Think of this.

Fang Ming's lips curled up.

Next time, when those mutant spiders block the gate of Shelter 2737 again, will I be able to harvest a wave of energy crystals?

The large machine gun on his side is always on standby.

evening.

As the last rays of sunlight were swallowed by darkness.

In the lobby on the first floor of the Ark Shelter, Shi Si and Shi Yi built a shed with simple plastic boards.

The living environment here is much better than that of Shelter 2737. There are no moldy walls or leaking pipes, and the dry ground does not show any rotten things.

"boom--!"

"Bang bang!!"

It is this incessant sound of firing that always makes people uneasy.

"This is the administrator clearing out the mutant species around here."

A little girl came over barefoot, her hair tied in neat twin ponytails, and she was wearing a T-shirt and gown that didn't fit her body. Although the little girl looked frail, her spirit was something rarely seen in this wasteland.

Shi Si knew her.

The other party was the mother and daughter who had left Shelter 2737 some time ago and joined the Ark Shelter.

"...Do they do this every day?" Shi Si asked.

The little girl smiled and nodded, handing over two candies.

"Yes, our task every morning is to deal with the corpses of those mutant species... Recently, the adults' firepower has increased a lot, so every day is very busy."

When Little Tomato first moved into the Ark Shelter, he was frightened by the sound of gunfire at night and couldn't sleep, but later he gradually got used to it.

After giving his candy to the new brothers and sisters, Little Tomato ran back to his room barefoot.

Shi Si watched her leave with a dull look in his eyes.

"They actually had the nerve to fire like this at night..."

Shi Yi, who was next to Shi Si, was also surprised by this action.

Over the years, they had only seen Xiao La using instruments to detect mutant species outside when dawn was approaching, and then finding two species with relatively weaker mutation levels to attack.

However, due to insufficient firepower and the extreme darkness outside, it was basically equivalent to blind shooting, so the benefits were not high.

If you are lucky, you can occasionally earn more than ten grams of energy crystals.

If you are unlucky, it will be difficult to even make back your investment after firing a few rounds of ammunition.

On the other hand, the Ark Shelter.

According to the little girl, the owner of the Ark Shelter has a lot of harvest every morning, and they have been doing this for many days.

"With such intensive firing, aren't you afraid of attracting high-level mutant species from the surrounding area? There are more than just GP-0 and GP-1 around here at night. Last time, a GP-2-level hybrid appeared..."

Shi Si held his head in his hands, and every gunshot outside made him inexplicably excited.

"I checked it out during the day. The protection level of the Ark Shelter's outer wall is completely different from that of 2737."

Shi Yi had been standing at the door without knowing when. She put her ear to the wall and closed her eyes to listen to the noise outside.

"In theory, as long as the building's defenses are strong enough...then they can open fire at will at night, without even having to wait until daybreak."

Having said that, Shi Yi took a deep breath.

Her neat short hair was mixed with sweat and mud. Because of long-term labor in the mines, her slender arms, which should belong to a woman, were quite muscular.

"Night is hell for humans and paradise for monsters... But now, everything seems to be reversed."

Listening to the roars and screams of the mutant species in the distance of the Ark Shelter, Shi Yi felt like he was dreaming.

When darkness falls, humans are the last surviving prey, and any mutant species outside can easily slaughter them.

But now she saw another scene...

The owner of this shelter is treating those monsters like vegetables.

……

The next day.

Tomato and Fanshu, mother and daughter, drove an off-road vehicle to a place five hundred meters away from the Ark Shelter.

As temporary residents of the shelter, Shi Yi and Shi Si, brother and sister, naturally had to come and lend a hand.

"Such a large bomb crater...does it need to be filled up?" Shi Si asked, looking at the bumpy ground around it.

"Sister Xiaochi said that bomb craters far from home don't need to be filled. We just need to drag the bodies of the mutants away... Otherwise, when they rot, they will breed a lot of viruses."

Tomato was an 'old hand' after all. She skillfully took out the energy crystals from the mutant's body, then tied up the body parts with ropes and tied them to the towing hook of the off-road vehicle.

Little Tomato's mother was responsible for dragging these pieces of flesh to the garbage dump one or two kilometers away by car. When the pile of body parts reached a certain size, the owner of the Ark Shelter would fire an energy cannon to destroy them all.

Tomato casually hung a small bag of energy crystals on the flying drone, wiped the sweat from his face and continued to collect at another place.

"Be careful, that's a bat insect. When the glands in their bodies burst, they produce a poisonous gas..."

Shi Yi felt a tingling sensation on his scalp when he saw the bold look of the little girl.

Although after hearing the explosion last night, she had already guessed that there would be quite a few mutant species killed in the explosion.

But this morning, she was in for a treat.

From mammals to arthropods, insects, birds, and even some chimeras, seeing the remains of the corpses of these mutant species, Shi Yi seemed to see the ecosystem of the Ark Shelter at night.

"Buzzing..."

In the wind and waves, a drone slowly landed in front of Shi Yi.

The drone has no cameras or black muzzles, but it carries boxes of ammunition and robotic arms on its back.

Shi Yi saw those mechanical arms stretched out, and then they accurately cut off the venom glands from the bat insects that Shi Yi had just mentioned, and threw them into a box for unified destruction.

Collecting energy crystals, splitting dangerous objects, and even picking up broken metal fragments... Shi Yi and Shi Si were both stunned by this multifunctional drone.

"How powerful the programming must be to make these drones perform such precise movements..." Shi Si said in surprise.

You know, there is not just one drone around, but dozens of drones performing tasks at the same time.

AI control?

Or are they so simple and foolproof that Administrator 001 can complete all the instructions by himself?

"Sister Xiaochi, there are a lot of energy crystals here!"

Not far away, Little Tomato, who had discovered a handful of energy crystals, waved his hands excitedly and held dozens of energy crystals in his hands.

Xia Xiaochi walked over from not far away and put all the energy crystals into his pocket.

"Thanks for your hard work."

"Hehe...there are more here!" Little Tomato laughed.

"sister……"

"Ah."