[Congratulations! You have completed the first mission on both worlds]

A sparkling text appeared on the screen. Zyrus read the following messages with a peculiar expression.

It wasn’t the first time he came across a situation where the earth, sanctuary, and the cube were interconnected somehow. Every time he had made some speculations, and without fail, they were proven wrong in the next encounter.

It was the same this time.

He believed that the sanctuary’s system and the earth were completely unrelated. It made sense since he wasn’t able to level up, use the status window, or any other functions of the system while on Earth.

‘Looks like they're connected with the cube as a medium,’ Zyrus came up with this hypothesis as he read the string of texts.

[As a reward for completing the missions, you can now use the ‘Class selection Scroll’]

[Instead of the existing unique classes, a new class will be created]

[You have received another main mission!]

[Mission: Explore the dungeon beneath your current location]

[Reward: ???]

[Side mission: Exterminate Verdara beetles (100)]

[Reward: Bone enhancement fluid (x10)]

[Side mission: Exterminate Glemorax (20)]

[Reward: Muscle enhancement fluid (x3)]

[Note: It is recommended to complete the side missions before attempting the main mission]

“Is there even a difference between Sanctuary and Earth now?” Zyrus spoke to no one in particular as he paced around.

There was no additional information about the mission, such as the monster's description or how to get to the dungeon.

‘Looks like I’ll have to select a class first,’ Zyrus thought with a frown.

He didn’t like the feeling where his actions were controlled by someone else. It was as if he was following a predetermined path laid out for him.

The most frustrating thing was that this path was indeed the most suitable and beneficial for him. A current example of that being the “Unique” word which was added to the black scroll’s description.

A unique class was something he didn’t have even in his previous life, not to mention one that was tailor-made for him.

Regardless of his complicated thoughts, He had no plans to refuse these generous offerings. He had long since decided that he would do anything to become stronger, and besides, he had a gut feeling that the one behind the scenes didn’t have any malicious intentions.

‘It should have something to do with that red eyed guy,’ Zyrus guessed as such and without further hesitation, he bit his finger and activated the scroll with a drop of blood.

[Would you like to use the Class selection Scroll (Unique)?]

[Yes/No]

Zyrus clicked ‘Yes’ and the scroll burned in abyssal flames under his excited gaze. Much to his surprise, new texts popped up in front of him.

[Creating a new class…]

[Initiating Synchronization..]

[Host bloodline detected..]

[Assimilating the Ancient bloodline..]

[Error! Insufficient data!]

Zyrus was stumped at the sudden error, but a thought suddenly struck him and he took out the flask given by Aurora.

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As soon as he took it out, the sturdy flask exploded into mist and drifted towards the ball of flames.

His initial surprise washed away as he observed the transformation with a solemn expression.

In the span of a couple of breaths, the black abyssal flames took a purple hue and exploded with a bang.

“Argh-” Zyrus groaned as he felt a scorching sensation on the back of his hand. He tried to focus against the whirlwind of sensations to no avail. Throes of pain ignited on his hand as he felt that something was being carved on his bones. Only when his vision returned to normal did he see the screen in front of him.

[Congratulations! You have acquired a Unique class]

[You have obtained the unique class: “Balaur Summoner”]

Zyrus clicked on the screen with anticipation and nervousness. With another flash, the class window popped up and he nearly jumped up in delight after reading it.

[Class: Balaur Summoner]

[Awaken the ancient bloodline by sacrificing your vanquished foes. With your authority as the last Sylvarix you can bring forth the fallen warriors of the past]

[Note: You cannot use sacrifice in the sanctuary]

[Summoned Subordinates: 0]

[Note: Summoned warrior’s species, class, and rank will depend upon the quality of the sacrifice]

[Note: Summons can level up. Special items are required For evolution]

[Note: Immortal attribute. Upon death, the summoned creatures will recuperate in another dimension depending on their ranks]

As he had guessed, it was the most efficient class for him. He could use the monsters and other beings in the sanctuary for his talent, and on Earth, he could use the aliens to summon more subordinates.

It was a very efficient process. The more he killed, the stronger he would become and the cycle would keep repeating itself. It also solved the biggest flaw that Zyrus had in his past life.

Unlike before when he had to fight against armies on his own, now he could fight alongside his summons.

‘Now I can focus on my origin skills without worries,’ Zyrus chuckled as he fed the frightened squirrel.

After analyzing the screen which showed the entrance of the dungeon, he walked towards his destination with excited steps.

And thus began the war that would last for thousands of years. A war for survival that would engulf countless galaxies in its wake.

…

*Platter*

Water trickled down from the ceiling into a concrete passageway. The walls, or rather, the tunnels were corroded by the passage of time. The place which was built to ensure humanity's survival was now occupied by green moss.

‘It must be from thousands of years ago, probably during the 2000s’ Zyrus guessed as he ventured into the dungeon with cautious steps.

Molded posters and broken vending machines gave these zigzagging hallways a haunting vibe. Only bits and pieces were left of the long-gone era.

It wasn’t much of a surprise to him. Dungeons were generally fragments of spacetime that were affected by an immense flow of mana. Thanks to this phenomenon, the world’s boundary became weaker around this area.

Hence, it was easy for foreign beings to invade from these frail boundaries. At the peak of his power, Zyrus was able to create dungeons as well. The most surprising thing here was the presence of mana on earth.

‘The flow of mana is on the same level as the second ring.’

Zyrus observed every nook and cranny as he went deeper into the hallways. The strength of creatures inhabiting an area was proportional to the concentration of mana.

Not to mention the aliens should already possess a remarkable constitution. Humans were, unfortunately, at the bottom of the barrel when it came to physical attributes.

This was the reason why so many people died in the tutorial as well. Humans were unable to use their core skills which made them the apex predators on earth. Without sufficient knowledge and mana, they were like birds without wings.

From his memories, this place should be an underground shelter. It was very likely that the aliens here would have small statures.

Coupled with his mana and powerful night vision, he had no trouble in exploring these dark hallways. After walking for half an hour in what seemed like a labyrinth of illusions, Zyrus finally arrived at a massive tunnel entrance.

Zyrus was certain of his guesses now. The Zigzagging pathways behind him were most likely jumbled-up passages that led to this area.

‘For that to be the case, The distortion in space should be greater than I’d thought,' Zyrus became alert as he approached the metal doors that sealed the tunnel.

*Slash*

The reinforced steel doors were shredded like paper after he struck them with his spear. Although the dungeon was filled with mana, that wasn’t the case for the objects.

This wasn’t the sanctuary after all. It would take millions of years for the objects in this dungeon to assimilate with the surrounding mana.

‘But earth would collapse long before that,’ Zyrus sighed as he walked into the tunnel. It was easy for him to deduce as an archmage that specialized in void.

He was certain that this wasn’t the only dungeon on earth. From the outside, the Earth seemed normal as it behaved just like any other planet would. Even with the dying sun, the earth should still exist for another billion years.

However, the presence of these dungeons changed everything. Sooner or later these scattered fragments of spacetime would burst out due to the imbalance of mana.

Unless Earth’s environment gained an absurd amount of mana, the planet was destined for annihilation.

Zyrus was lost in melancholic thoughts as he faced the doom of his home planet. He shouldn't have any attachment to this place as he wasn't even born here. Just as he was about to probe further, he felt a bone-chilling sensation.

He glanced around with his yellow eyes as his skin shivered in alarm. He walked closer to the wall and hundreds of thoughts and battle tactics flashed by in his mind.

His instincts were warning him of a formidable foe nearby.

*CHrik*

There was nothing but metal walls on both sides, but with his reptilian eyes, he was able to see something else a hundred feet ahead.

The tunnel split into many paths, filled with rows of metal doors. His sight was locked on the one that was open.

And there, another gaze met his own.