Prologue, in the depths of darkness

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However, even Jan did not expect that there would come a day when he would also stumble and fall.

However, for Jan, this is his only home

Boom!!

I apologize for disturbing you, my lord

... ...

Lord of the City: Jan

Gazing into the void before him, Jan adjusted his glasses, and a glimmer of brilliance flashed in his crimson eyes. At this moment, a series of data was unfolding before him.

What happened again

[Architecture: Heart of the Underground City (You can feel your heart racing intensely, a testament to your existence and a countdown to your demise, all depending on how you choose to endanger yourself) — Life Limit + 100 ]

It seems that a qualified architect is indeed the most important component of an underground city

After spending over ten years in that chaotic and hellish place, just when Jan had finally become accustomed to life in the demon realm, he was summoned by his cheap old father. Subsequently, under the pretext of a demon king inheritance ceremony, he was thrown into this godforsaken and nightmarish location.

After a moment, Jan finally closed the book in front of him, removed his glasses, and rubbed his somewhat sore eyes. Unlike writing a book on magic, the standard of historical records of the demon clan is truly hard to look at; the entire text is a dry and monotonous diary, almost as if it were something a mischievous child concocted to get through holiday homework.

Subordinates: 6 people

Only Jan is... cough, Third Brother... cough... Third Brother has little reputation in the Demon Realm. Aside from spending all day in the library reading, he has not been seen doing anything serious. Not only is he weak in strength, similar to the patrolling soldiers of the demon race, but compared to those siblings wielding heavy weapons, Jan's influence is also pitifully small.

While talking to herself, Jan stood up and stretched lazily

To some extent, the online novels that Jane used to read were ten thousand times more interesting than this

That is a demon clan

Speaking of which, time really flies

The small study appears clean yet somewhat dilapidated, but this is hardly surprising. In a subterranean cave of less than 20 square meters, what kind of environment can one expect? Here, apart from the dark and damp cave, the lurking monsters in the shadows, and death, there is nothing else.

It must be admitted that this newly opened dungeon is very weak. Apart from Jan, the dungeon lord whose name does not match his reputation, there is only his ever-present aide and the five goblins summoned after arriving here. Such a dungeon could probably be easily eradicated by just any random adventuring party.

Architecture: Study (Here lie the secrets of history, the laws of the world, and the explosive flowers | Flower | Public | Weekly Zhou, it depends on whether you can grasp the intricacies within) — Magic Amplification + 3, Magic Recovery + 10

Architecture: Nest (Even slaves require human rights; only by allowing them to experience a life with guaranteed social insurance and housing fund will they be more dedicated in serving their employers) — Loyalty + 1

However, I have finally been liberated

As a result, not only was Jan's computer completely ruined, but he himself also did not escape unscathed. When Jan regained consciousness at https://www.hetushu.com, he had transformed into a demon who had just crawled out of an eggshell—moreover, he was one of the heirs to the Demon King.

Call ... ...

Level: 1

Looking at his aide, Jan helplessly closed the book in his hands and asked.

As she sighed, Jan couldn't help but recall the scene from when she first arrived in this world

The situation is as follows: the Southern Passage has once again been collapsed by those goblins, and this time the damage to the dungeon is approximately one-third. May I ask how we should resolve this issue

Simple and straightforward, there are none of the elaborate formalities found in the human world, nor is there a need for elections, alliances, or behind-the-scenes maneuvering, and there is certainly no need to appear on television to articulate one's political views; the one with the strongest fist is the leader. The demon realm has taken this statement to the extreme, elevating it to the level of truth.

Dungeon Construction System

Architecture: Bedroom (When lying on the soft bed to relieve fatigue, please do not forget that it is not only for sleeping, but also closely related to the secrets of life and reproduction in this world) — Life Recovery + 10, Energy Limit + 10

Development Progress: 355 / 1200

Indeed, after the traversal, Zhan En inexplicably acquired this system. In fact, Zhan En was not unfamiliar with this system, as it was the very setting from the online game he had played before. However, for some unknown reason, this thing merged with his soul and traversed alongside him.

The flickering candlelight gently illuminated the dim study in front of him, and with this faint glow, one could see a young man curled up in the chair at the desk, poring over a thick book by the candlelight

The so-called Demon King Inheritance Ceremony is actually quite simple. In essence, it involves the five children of the Demon King heir each selecting a region, where they will construct their own "Dark Castle," expand their influence, and ultimately, the one who can stand out among the five siblings will become the next Demon King

Finally, I have made it through the tough times

However, it is not surprising, as among the five siblings, only Jenn is the least capable. The eldest brother, Klein, is the most powerful candidate for the Demon King, and the name of the second sister, Lilithia, is enough to frighten children into silence in the demon realm. Even her two younger sisters are formidable figures that instill fear in the demon realm.

Fortunately, this area belongs to a desolate zone where no one takes responsibility, and Jenn's underground city lies several hundred meters below the surface. There will be no overindulgent adventurer teams coming here for a day trip. However, for Jenn, this is not entirely a risk-free place

However, now that the hardships have passed and the sweetness has arrived, being thrown into this desolate place, Jan has finally begun to establish his own underground realm, while simultaneously gaining the power he rightfully deserves

It was merely for the sake of convenience that I wrote a script for a certain online game I frequently played, only to be banned by the official authorities. Feeling aggrieved, Jan naturally hacked into the official server in an attempt to clear his name. However, while Jan was having a great time making modifications on the server, he failed to notice the thunderstorm warning on his end. As a result... well, the facts tell us that there is indeed some reason behind the prohibition of using household appliances during a thunderstorm.

It is no wonder that he was thrown into such a dreadful place; otherwise, before Jenn could tidy up his underground city, he would have already become nourishment in the dark depths beneath the earth and yet another enduring joke among the demon race

Looking at the floating panel before him, Jan let out a deep sigh filled with emotion

Resources: Ore (50), Mercury (20), Gemstones (15), Crystals (70), Money (1520)

[Magical Research (LV1): No Research Objectives]

Moreover, while his siblings were making rapid progress, as if they were constantly upgrading like they were filled with golden fingers, Jan could only forever hold onto his unexpandable Level 1 dungeon system, spending time in the library. This is also why Jan's strength is perpetually weak to the point of being shocking, to the extent that even the demon race cannot bear to watch.

At that moment, a dull sound suddenly came from afar, followed by the ground beginning to tremble, and countless dust particles fell from the ceiling. Almost simultaneously, a knocking sound was heard at the door

Perhaps when I become the Demon King, the first thing I need to do is find a reliable secretary.

At that moment, the door to the study slowly opened, and a petite, slender figure glided into the room like a ghost. She was a girl of about fourteen or fifteen years old, with soft golden hair and delicate, finely-featured facial features that always bore an elegant and gentle smile, akin to a soft breeze. She was dressed in a luxurious black gown that made her appear as if she were a young lady from a prominent noble family. However, her strikingly red eyes, triangular ears, and pale skin indicated that her identity was anything but ordinary. She was dressed in a luxurious black gown that made her appear as if she were a young lady from a prominent noble family. However, her strikingly red eyes, triangular ears, and pale skin indicated that her identity was anything but ordinary.

He was once a well-known hacker in the realm of the internet and the book industry on Earth. No matter how powerful the firewall, as long as the network is not completely physically isolated, it cannot stop Jan's black hand.

It is quite simple; a character that has remained at Level 1 since birth, with neither HP nor MP ever increased, would be unable to utilize a hundred legendary spells, rendering it merely a futile endeavor

He appeared to be around sixteen or seventeen years old. Due to prolonged exposure to darkness, his handsome face looked pale and emaciated, and he wore a long, pitch-black robe that trailed on the ground. On the surface, he seemed no different from an ordinary person; however, the faintly visible pointed horns emerging from the sides of his forehead and his pair of bright red eyes revealed his true identity

People fear the dark, dread the unknown, and are afraid of death. The Demon King embodies the source of these fears. As a ruler of darkness and the master of the Hall of Ten Thousand Demons, the Demon King must ensure that everyone understands how to fear and respect him, while finding a perfect balance between violent coercion and sweet words—much like forcing a human in front of you to gnaw on a piece of bread, then smilingly telling them that it contains half a cockroach. The 333rd Demon King, Sepralas

Including him, there are only two people in total

Architectural Drawings (LV1): No architectural drawings

However, it is unfortunate that, despite having such a system, it was of no use to Jan before. He helplessly discovered that before the entire dungeon unfolded, his system was completely sealed. Therefore, no matter how much knowledge he acquired, he could not convert it into his own power. Even if he refined the incantations of magic to the utmost limit, he still could not cast powerful spells