In this post-apocalyptic world, I unexpectedly became a star galaxy master.

Although apocalyptic theories are brought up every two or three decades, each time accompanied by various natural disasters and epidemics, people have survived.

Will it happen this time too?

Hongtang was somewhat uncertain. But after all, she already had a system, a spatial ability, and the possibility of humans migrating to other planets.

Perhaps the end times will come one day.

[Host, what is the apocalypse?]

"It refers to situations where natural disasters, plagues, or wars cause human society to stagnate, civilization to be destroyed, productivity to decline, the human race to perish, or to face a test of life and death."

[Oh, I understand, little sister. Then the host's planet is definitely going to be doomed.]

"Why are you so sure, little sister?"

Hongtang felt even more depressed and heartbroken.

[When my younger sister first transmigrated to the first interstellar civilization, she discovered an unknown substance floating in space, gradually drifting towards her host planet. This substance is very energetic and can promote biological evolution or eliminate life. If a more fragile planet encounters it, it can even cause an energy explosion.]

Hongtang, “…”

I'm numb. Why subject her fragile heart to so many blows?

"What are those substances? Will our planet explode? How will life evolve?"

[Your sister doesn't know what that substance is either. Although your planet is somewhat backward, don't worry, planets that explode are all dead, abandoned planets devoid of life. Your planet has a very high probability of evolving.]

Dead planet, abandoned planet?

Okay, Hongtang said she learned something new, but now is not the time to delve into these things.

What is evolution?

Evolution is the process by which an organism's vital signs and abilities change. It can be positive or negative, with both good and bad aspects. It depends on the specific circumstances at the time of occurrence, and even you, little sister, aren't sure yet. You'll know more after you level up!

The system then subtly encouraged Hongtang to upgrade as soon as possible.

Okay, this is definitely heading towards the apocalypse, Hongtang is 50% sure.

What's next?

Hongtang decided to eat a bowl of instant noodles to calm her nerves before making any further plans.

Ten minutes later, after finishing a bowl of braised beef noodles, both her stomach and mind were soothed, and Hongtang calmed down from the huge information shock.

The ability to quickly calm down and face situations rationally is something she gradually developed starting at the age of 16.

He took a bottle of chilled soda from the refrigerator, and also brought the small fish-shaped bottle, a box of instant noodles with hot soup, and an electric kettle into the space.

Experiments have shown that the space can accommodate all living beings except her, and it also preserves food, ensuring it remains in its original state no matter how much time has passed. Time flows at the same rate as in the real world.

Buildings can also use water and electricity, although it is unknown where the water and electricity come from.

At the entrance on the first floor, Hongtang noticed an inconspicuous groove in the wall, filled with more than 20 colorful gemstones.

"Huh, what's this? A colored gemstone? It's the size of a goose egg, and it's crystal clear. It's so much better than those pigeon eggs or the Heart of Aquamarine. I've really hit the jackpot." Hong Tang was very happy. She had just been thinking about stockpiling more supplies to prepare for future crises, and she was worried about where the funds would come from.

Look, these gems have been delivered right to our doorstep. Judging by their quality, each one must be worth at least several hundred million.

[Host, you've hit the jackpot! These are super energy stones, unique to the Seventh Interstellar Civilization! Buzz buzz buzz...] My sister started leaking electricity with excitement again.

The super energy stone contains boundless energy, serving as the energy source that sustains the operation of this space. The water and electricity within the buildings, as well as the habitable land outside, are all powered by it.

"It's so amazing, how long can it sustain the space? What if the energy stones are all used up? Will the space disappear or be destroyed?" Hongtang asked with a hint of regret and worry.

These weren't gems after all; his hope of using them to store supplies had been dashed. Furthermore, the space might disappear as a result of their consumption.

[Host, rest assured, the space exists because of the space energy stones, while the super energy stones provide energy. Both are rare minerals in the Seventh Interstellar Civilization, but their uses differ. There are many types of energy stones; these are the most versatile, capable of supporting biological growth and being converted into water, electricity, buildings, and more. This 'super' is truly super. However, as a system, I don't know the specific uses.]

[By the way, the energy provided by one super energy stone can power all life on the host's planet for approximately 10,000 years in space. The host has over 20 stones, so there's no need to worry about consumption.]

Oh, I see. Hongtang didn't fully understand what her sister meant by the energy stone, but she knew that it meant the space would always exist. And as long as the super energy stone existed, they could grow crops and raise livestock here, living a modern life, like an independent little world.

My heart is completely at peace. At the same time, my mind races: can this energy stone also be used for construction?

Her mind moved as she pleased. Hongtang used her mental power to construct images in her mind.

Soon, a building that looked exactly like the Little White Building came into view.

Hongtang was overjoyed; it was a success.

The younger sister promptly reminded her, "Host, you need to put the energy stone in, otherwise this new building will disappear later."

Hongtang placed an energy stone as instructed. She went inside the new building and saw that it was indeed no different from the old white building.

Take the energy stone, and five minutes later, the new building will disappear from the ground, but the little white building will not.

amazing!

In her heart, a plan quietly took shape.

Hongtang returned to the white building and used her mental powers to decorate several rooms on the second floor exactly like her own home. Once she had stockpiled supplies, she planned to move her entire home in.

As for the first and third floors, she plans to turn them into a supermarket and a clothing department store. That way, she can browse around every time she returns to her room.

Of course, warehouses and farms are also necessary, but they should be set up once the supplies arrive, otherwise it will waste energy stones.

Looking at the newly renovated white building, Hongtang was very satisfied and exited the space with peace of mind.

Back in her study, she started typing away on the computer, making a shopping list.

Because I usually keep track of my bills, I finished in less than half an hour.

A complete and detailed shopping list was printed out, spanning ten pages. It covered clothing, food, housing, transportation, and daily necessities. While some of the brands weren't the absolute best, they offered the highest value for money, and the quantities were all calculated over the past 100 years.

Considering the average lifespan of 80 years for humans on Planet Aquamarine, with the support of her spatial ability, it wouldn't be unreasonable for Hongtang to live another 100 years, would it?

Humans have already migrated to other planets, and perhaps longevity-enhancing drugs will be invented by then. Her "century-long plan" is already considered conservative.

Looking at the total funds, it would require 15 million, which she doesn't have that much money! But if you average it out over 100 years, the annual cost would only be 1500, which doesn't seem like much for Hongtang, who earns an average monthly salary of 6 to 7.

Ah, this is a paradox.