Imagine it: a diet supplement that instantly burns calories without exercise, a shower device that cleans you in three seconds with the push of a button, a pill that replaces meals, and a household android that handles all your cleaning, laundry, and meal prep.  

Things people have dreamed of at least once.  

If any of that existed, people would line up, ready to empty their wallets. But who could actually believe in such convenient luxuries? After all, they exist only in the realm of fantasy.  

Science fiction.  

And yet, humans crave most what they cannot have.  

Just like this young man, whose fingers danced across his keyboard with the fluidity of a pianist, typing furiously.  

“Listen, whether it’s a Celestial Demon or a dragon, one shot from an anti-particle cannon would annihilate them! Are you stupid or what?”  

An anti-particle weapon harnesses the annihilation effect between matter and antimatter, converting mass entirely into energy. Theoretically, the blast power of an anti-particle weapon could be dozens, even hundreds of times that of a nuclear bomb.  

How could fantasy or martial arts even compare to SF!  

To drill this point into his ignorant opponent, he hammered away at his keyboard, lecturing them on the supremacy of SF technology. Of course, some choice words slipped in here and there. After all, he’d been in this keyboard battle for over twelve hours.  

“Ha! Got nothing left to say, huh?”  

His opponent’s responses had slowed, and sweet victory was in sight.  

“Give up already.”  

He was exhausted himself. It was late, and he was ready to watch an SF movie and crash into bed.  

Flash—  

Until that moment when he was suddenly and inexplicably pulled into another world.  

“What?”  

Pulled into another world?  

There were no warning signs. It took him a moment to comprehend his situation.  

"Ah…”  

Days later, he realized he’d been reincarnated into *Galactic Hero Chronicles*, a novel he’d read countless times.  

Unlike most web novels, *Galactic Hero Chronicles* was a four-part series filled with countless warlords and mysterious artifacts. Luckily, he knew the plot inside out and was young enough to embrace this challenge.  

“Alright, I’ll show them all! The supremacy of SF!”  

But his enthusiasm was short-lived.  

In this crazy universe, where one blast from a massive space cruiser’s main cannon could blow up a planet, he was just a low-ranking officer.  

Forget proving SF’s supremacy—surviving was his first priority.  

"This is… a nightmare.”  

No matter how hard he worked, a single stray battle could destroy the entire planet he was on in an instant.  

The fear and despair were hard to even imagine. No matter how much effort he put into growing stronger, a stroke of bad luck could end his life in a flash, like a bug under a boot.  

He had to scrap his original plans entirely. Instead of hoarding opportunities and trying to become the ultimate powerhouse, he needed a new survival strategy, one that didn’t involve gambling his life in galaxy-spanning battles.  

His first step was acquiring the highest-performance AI module, a plot point only hinted at in the novel—a module containing “Aria,” an AI officially recognized as the best in the SF world. After implanting Aria into his body, he accelerated his plans.  

He decided to pivot from soldier to politician, slowly building influence, starting with the planetary council on the outskirts. Fortunately, he had a trace of imperial blood, which made things a bit easier.  

Ironically, his greatest asset in this SF web novel turned out to be… people.  

He sought out every major and minor character from *Galactic Hero Chronicles*, carefully crafting scenarios with Aria’s help to win them over.  

- “Why… why would you help me?”  
- “You… want to be friends?”  
- “I pledge my loyalty!”  
- “I’ll never forget this debt!”  

Geniuses on a galactic scale.  

Imagine it: talents so extraordinary that even Aria’s predictive calculations couldn’t fully grasp them.  

They say even “The Continent’s Greatest Genius” is just an understatement; so what does that make “The Galaxy’s Greatest Genius”?  

He gathered all the geniuses and prodigies who stood out across the galaxy. He especially focused on securing *Maxien*, the protagonist of part two, a cosmic swordmaster, and *Camilla*, the boss from part four, known as the “Battlefield Conductor.” With the strongest single-combat fighter and the genius tactician by his side, he had little to fear.  

Despite securing the strongest blade, he didn’t stop collecting talents. He anticipated countless crises, preparing and resolving them in advance, dispersing the opportunities he gathered among his allies.  

And eventually, the unthinkable happened. He assassinated the imperial emperor, the final hidden villain, and claimed the supreme seat of the universe.  

The Emperor of the Galactic Empire.  

To be exact, he became the head of one of the three major forces dividing the universe—the Human Union.  

The title of emperor held mostly symbolic power, but that didn’t change the fact that he was untouchable. With countless skilled talents at his beck and call, he was, without a doubt, the undisputed ruler.  

Having reached the pinnacle of humanity, he delegated the rest to Aria and his subordinates. He hadn’t clawed his way to the top just to work himself to death.  

And so, enjoying his temporary freedom, a strange message suddenly popped up before him.  

[Welcome to the Dimension Integration Community.]  

Huh?  

A completely unexpected message.  

A hologram or user-specific interface wasn’t anything new to him. This was an SF universe—such things were common.  

But for something to reach him directly, bypassing Aria’s assistance, was unheard of. His body was already fully modified, granting him eternal life, so it wasn’t as if he was hallucinating.  

“Did Aria decide to play a prank on me?”  

“Yes, Master?”  

A calm female voice echoed in his mind.  

"Hmm…”  

Aria’s personality was like that of an ice-cold, imperious assistant. It was hard to imagine her pulling a prank.  

“Aria, did you see this message?”  

“...Please wait a moment.”  

A hologram only he could see, undetectable to Aria?  

Impossible.  

"Hmm…”  

Or could it be…?  

A small thrill surged through him. Life had gotten a little dull since becoming emperor.  

"…”  
- “I cannot detect any shared visual of the message. Please refrain from joking.”  
“Is that so?”  

"A message Aria can’t recognize….”  

He tilted his head and reached out to touch the message only he could see.  

Ding—!  

[Please enter a nickname to use in the Dimension Integration Community.]  

He mentally selected a nickname.  

[DNP (Dimension Network Protocol) initializing…]  
[DNP Address (1.241.38.66) confirmed. Identification code assigned.]  

[Welcome once again, ‘Galactic Emperor.’]  

In front of him, a transparent interface, reminiscent of the online forums from his past life, appeared. Aria’s voice broke through, sounding surprisingly flustered.  

“Master. I am detecting an unknown astral signal! This is… impossible.”  

When was the last time he heard Aria this startled? Probably when she witnessed Maxien’s ultimate technique, the Cosmic Sword.  

“Aria, synchronize.”  

“Please hold for a moment. 3, 2, 1… Synchronization complete.”  

Suddenly, it was as if he was viewing himself from a third-person perspective, detached from his own body. Now, Aria was the one in control. Synchronization was different from simply sharing his vision—it was like separating his soul.  

“Soul-splitting always feels weird.”  

While he watched, detached, Aria, in his body, blinked and examined the transparent window.  

- “This is…”  

Could synchronization actually reveal it?  

Aria was speechless.  

Could it really be that shocking?  

But what she said next was not what he expected.  

- “This is… a gathering place for the mentally unhinged.”  

At her baffling assessment, he couldn’t help but nod in agreement.  

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Even to an AI like Aria, the Dimension Integration Community didn’t seem quite normal.  

After breaking synchronization and returning to his own body, he skimmed the posts.  

"Hm... not much different from the forums back in my previous life.”  

As he browsed through the posts, he quickly understood how things worked. Users could post and comment anonymously or with nicknames. The most fascinating part, though, was that they seemed to live in entirely different worlds.  

└ “Ugh… I transmigrated into a fantasy world, and they don’t even have flush toilets. Is this real?”  
└ “No toilets

? I’m in a martial arts world, and the people here lack basic decency.”  
└ “Having toilets but not being able to use them is worse, trust me. Apocalypse life sucks.”  
└ “At least you have toilets. My world has no civilization. We run around barefoot with nothing but leather around our waists.”  
└ “Just leather around your waist? *licks lips*”  
└ “I’m a guy.”  
└ “Gross.”  

Hmm… Looks like some people ended up in literal prehistoric worlds. There were even some locals native to these places.  

└ “Chasing material wealth will only lead you away from spiritual fulfillment.”  
└ “Old man, have you ever tasted fried chicken? If not, keep quiet.”  
└ “Fried chicken? Isn’t that some sort of roasted bird dish? I’ve tried it before. Are you all that deprived to obsess over it?”  
└ “How dare you belittle the holy fried chicken!”  
└ “Old man, what about soda?”  
└ “Soda? What’s that?”  
└ “...Never mind.”  
└ “I don’t understand why you’re so fixated on food. The mountains and fields are filled with nourishing ingredients.”  

The forum wasn’t just a collection of reincarnators. Here and there, he noticed native locals participating as well.  

Feeling intrigued, he clicked the “New Post” button.  

“Let’s start with something simple.”  

**Title: Greetings from a Newbie**  

It didn’t take long for veteran users to start swarming the post, practically drooling over a new member.