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

Why is it that she never earns enough money to spend?!

“Pay off the installments first, and for the remaining amount that is less than 7000 million, exchange fruits and vegetables with Xixier. She is willing to do so.”

The fact that her sister couldn't level up and the system no longer offered random rewards didn't bother Hongtang.

Building the stone house is the priority now, and Xishir's extreme cold camping gear is even more important; she must get her hands on it.

"Little sister, use up everything in that upgrade gift pack."

"Also, ask Xixier if he can have a cold-weather suit custom-made for Brother Ha."

[Ok, host. 】

[Ding! Congratulations, host! You have received a reward of 2000 million interdimensional coins for upgrading!]

[Ding! Congratulations, host! You have received a reward of 3000 million interdimensional coins for upgrading!]

[Ding! Congratulations, host! You have received a reward of 5000 million interdimensional coins for upgrading!]

[Host, these are the upgrade rewards for a Level 3 Merchant; they're all dimensional coins.]

Hongtang: The rewards are all in-game currency, which is just in time. After paying off the installments, I'll still have more than enough to buy that set of equipment.

“Okay, little sister, all the fruits and vegetables in the space can be put up for sale. Next, we need to upgrade to level 5 merchants, which requires 10 transactions. But I have other important things to do now, so I'll leave the system transactions to you.”

[Don't worry, host, your sister will definitely not let you down!] The sister made a fist and cheered, her tone full of determination.

Sister: Your abilities are so low right now, but you don't look down on me at all. I must work hard and not let you down.

Hongtang was very pleased with her younger sister's performance; she was truly a sensible and good system.

And look at HaGe. He's sitting on his back by the fishpond, snoring. Is that a big, shiny snot bubble on his face? w(?Д?)w

As soon as it got dark, Hongtang left the hotel.

In a secluded spot, she took out her electric scooter and drove towards the rocky mountain. Once inside the forest, the scooter was obviously no longer suitable for riding.

So, I parked the car, went into my personal space, ate, washed up, and went to sleep.

This job can't be rushed; we'll have to wait until tomorrow.

The next day at daybreak, Hongtang left the space. Using her "spatial teleportation" skill, she quickly found the stone mountain.

The surface of the entire rocky mountain is still covered with vegetation, but due to the continuous high temperatures, only one in ten plants survive.

On the leeward side of the rocky hill, large areas of bare rock, reaching heights of eight or nine meters, are exposed. In front of it is a large open space, scattered with pebbles and withered grass.

This is the place, but whether construction can proceed depends on further exploration by a detection robot.

Extending her mental energy to confirm that there were no humans or anomalies nearby, Hongtang took out a spatial twister, retrieved a detection robot, and issued a search command.

Ace—the exploration robot—provided relevant data and conclusions within 20 minutes after a comprehensive survey of the area: the site is located at a high elevation, with stable geology, and has a flood and earthquake resistance rating of A, making it suitable for building houses.

Hongtang smiled and said, "Ace did a great job. You've worked hard. Go and rest now. Next, it'll be Wawa, Shushu, and Xiaojian's turn."

Hongtang gave all seven robots new names: Bridge Building Robot (Qiaoqiao), Road Paving Robot (Dalu), Detection Robot (Ace), Digging Robot (Wawa), Lifting Robot (Aqi), Transport Robot (Shushu), and Construction Robot (Xiaojian).

Okay, it's my pleasure to serve Tangtang. I look forward to seeing you again!

Ace twisted his massive mecha body, transforming it with a series of "crackling" sounds, before finally returning to the spatial button.

"This is amazing, amazing!" Even though it wasn't the first time she had seen them, Hongtang still found it incredible.

When the other three robots were released, they also transformed with a series of "clicks and clicks," and three giant mechs, each more than three people tall, stood in a row in front of Hong Tang. While greeting her, they all gave a gentlemanly bow in unison.

[Hi Tangtang, it's so nice to see you! I'm Wa Wa. Is there anything I can help you with?]

[Hi Tangtang, it's so nice to see you! I'm Shushu. How can I help you?]

[Hi Tangtang, it's so nice to see you! I'm Xiaojian, how can I help you?]

"Wow, wow, wowka!"

Hongtang was so excited that she jumped up and down and screamed. This is so cool, so alluring, and so sexy! If all seven brothers did this together, they would definitely charm countless girls!

Sigh, I wonder if Hoss has any bodyguard robots. I really want to buy a whole team. If things get chaotic in the future, with bodyguard robots around, who can do anything to her!

Hoss: You're overthinking it, there really isn't one!

[Ahem, Tangtang, wipe the drool from your mouth first,] the mature and composed Shushu spoke first, [Calling the three of us out at the same time must be something very important.]

Hongtang gave an awkward smile, wiping her mouth with the back of her hand before realizing she'd been tricked. "Hehe, I'm going to build a stone fortress here. A-Ce just confirmed that there are no problems." The products of advanced interstellar civilizations are truly different; they even know how to tease humans.

"No problem, but we need A-Ce's detection data and images," Xiao Jian said, adding that he would be handling most of the later stages.

Hongtang didn't expect that they still needed Ace, so she released him again.

After discussing the building plan and materials provided by Hongtang, the robots concluded that construction would take three days and nights. This did not include the interior decoration, which Xiaojian would need to complete alone, taking about half a day.

Hong Tang was dumbfounded: Three days?! That's insane! Is the difference between four interstellar civilizations really that huge?

"Actually, there's no need to rush. On the way here, I found some bamboo on the mountain that can be used to make pipes. It's environmentally friendly and saves on materials."

"No problem, I'll go help you cut bamboo. Wawa and Shushu, get started first. A-Ce, scout the area and notify everyone immediately if anything seems amiss," Xiao Jian instructed.

The seven robot brothers have communication devices that allow them to exchange messages at any time.

Seeing that the other three brothers agreed, Hongtang had no objection either. "Okay, but you guys are too big and conspicuous. If someone notices you, it might cause trouble."

"This isn't a big problem," Xiao Jian said. "We can transform into normal human size."

After saying that, there was another series of "snap snaps". Through the transformation, Xiao Jian shrank a lot, but was still two heads taller than Hong Tang.

Meanwhile, Wawa and Shushu had already gone to the bottom of the rocks and started working.

The doll's two hands transformed into constantly rotating blades, which extended and thinned as they pierced the rock face, then changed position and repeated the process.

Soon, a complete square boulder was cut off.

Shushu was already waiting to the side. As soon as the boulder was taken from the mountain, it took it and quickly moved it aside.

The two robots worked together very well.

Meanwhile, A-Ce transformed into an adult-sized figure and began to observe his surroundings.

Seeing everyone get into work mode so quickly, the boss, with a wide grin, thought to himself, "That 1 million interdimensional coins was really well spent!"

"Put those unused pebbles aside for now, I'll collect them when I get back, they might be useful later."

After giving instructions to the three robot brothers, Hongtang took Xiaojian to cut bamboo.