The World Underground

"Another one, that's the fifth! Could I really be the chosen one?"

After wiping out another group of demon rats, Wang Qianduo once again got a tooth fragment.

In less than half an hour of grinding, he had successfully obtained fragments number 1 through 5, which inevitably made him overthink.

Although he said he didn't care, his heart was actually quite honest. After all, who doesn't have a heart that yearns for more than the ordinary?

But while his heart yearned for the extraordinary, reality was incredibly cruel!

For the next two hours, Wang Qianduo didn't see any new tooth fragments.

Let alone the never-before-seen number 7, he hadn't even seen the common number 6.

That's just how it is!

"Damn it." (A type of radical)

"Another number four! Zero, as an AI, can you analyze why this is happening?"

After picking up another number 4 fragment, Wang Qianduo complained to Zero.

"According to my statistics, the demon rats you've killed can be divided into 5 types based on their appearance.

Each type drops a specific fragment. The demon rats you've been killing mostly drop the fourth type of fragment, which is normal!"

Wang Qianduo: "?!"

He had just complained out of boredom, not expecting Zero to directly answer his question.

But he really couldn't tell the difference between these big rats. They were all muscular and dirty.

"According to you, there are actually seven types of demon rats on this planet. If I kill them all, I might be able to collect all the tooth fragments?"

Despite his doubts, Wang Qianduo decided to try Zero's analysis.

If it worked, wouldn't that be a huge win?

"Zero, analyze the demon rats and help me find the other two types of demon rat groups."

"Certainly, sir!"

After Zero's reply, Wang Qianduo piloted the Zero Unit straight into the sky.

Soon, with Zero's help, he found the sixth type of demon rat clan and successfully obtained the number 6 fragment.

What did this prove? It proved that Zero's deduction was completely correct!

Now he clearly understood the power of the AI that came with the mecha.

This was something that would be a nightmare for humans to distinguish, but Zero could analyze it with just a small amount of data.

Fortunately, he had complained, otherwise he would have truly missed out!

So this was the key to the planet's hidden secret. It seemed he really was the chosen one.

The rest was simple: focus all efforts on finding the seventh type of demon rat group. Once found, he would soar.

"Haha! This hidden quest that countless people have dreamed of will be completed by me!"

Wang Qianduo thought excitedly, only to be slapped back to reality by the old man.

He flew enthusiastically for nearly an hour, but found nothing.

At the speed of the Zero Unit, it only took a little over 10 hours to fly from Kyoto to Shanghai. This hour of flight was no short distance.

The complete lack of any findings already indicated a lot. No wonder no one had ever obtained the number 7 fragment.

"Zero, analyze, where might this seventh type of demon rat be hiding?"

Wang Qianduo, who already had some suspicions, chose to ask Zero again. Zero didn't disappoint him and directly provided the answer.

"According to information provided by the Alliance, the origin of the demon rats should be underground on this planet. I suspect this unknown seventh type of demon rat should also be underground!"

Wang Qianduo: "I had a suspicion too, but I haven't seen any entrances to the underground world.

Unfortunately, I don't have any technology-oriented skills that can alter terrain. My skills are entirely magic-oriented.

If I did, we could bomb the ground to try..."

As Wang Qianduo spoke, he suddenly took out a bomb and looked at it. He vividly remembered its explosion that day.

The mountain where Mark Bei was located was leveled. If it hadn't been a safe zone, who knows how many people would have died.

"Analyze, see where it's suitable to bomb!" Wang Qianduo said to Zero. He had already decided to waste one to try. His heart had been completely captivated by this quest.

"I need to activate the Fiery Eyes authority!"

"Okay!" Wang Qianduo agreed immediately.

He originally thought that when Zero said to activate the Fiery Eyes authority, it was to use reconnaissance skills to scout the terrain.

But he didn't expect Zero to activate all three Fiery Eyes skills at once, and also open some hidden switch.

Countless streams of data instantly flashed before Wang Qianduo's eyes, but he didn't have a super processor brain. Soon, he was dizzy from looking.

But he had no choice but to look. Everything about the Zero Unit, including Zero itself, was for him, the pilot.

If he closed his eyes, all of this would disappear immediately, and Zero wouldn't be able to analyze anything. It would be a wasted effort.

Fortunately, the Fiery Eyes' duration was only a brief 20 seconds. Any longer, and he was certain he'd be sick.

"Ever seen someone get carsick? How about mecha-sick?" Wang Qian Duo grumbled, his head spinning.

"Never, but I have more bad news for you.

We've only calculated the general direction. We need to pinpoint the exact location."

Wang Qian Duo: "..."

Old Wang didn't want to go through that agony again, but he knew that hardship forged strength.

The best way to overcome fear was to face it.

"Come on! You got this!"

After pumping himself up with two liters of 'chicken soup for the soul,' Ling started its performance again ten minutes later. Old Wang finally couldn't take it anymore and collapsed on the ground.

But effort yielded rewards. Ling successfully calculated the location this time. Wang Qian Duo placed a Bombardment charge beneath a derelict fortress and ignited the fuse.

BOOM! A deafening explosion erupted, and a massive mushroom cloud bloomed where it had been.

As the smoke and fire dissipated, a gaping hole appeared before Wang Qian Duo, a dark abyss that seemed to lead straight to the underworld.

Without a second thought, Old Wang plunged in. He could fly, so what was there to fear?

The Bombardment charge had been too loud. While not many people were leveling on this planet, there were still some.

Wang Qian Duo's erratic flight had already attracted attention, and some had been drifting closer, intentionally or not.

The mushroom cloud from the Bombardment charge was so conspicuous that they immediately flew towards it upon seeing it.

When they saw the enormous crater, they immediately thought of the famous unsolved mystery of the "Tooth Fragments."

Thus, these people scrambled to jump in, and immediately spread the news.

Wang Qian Duo was completely unaware of what was happening on the surface. The underground world was far more complex than he had imagined.

The paths intertwined, a confusing labyrinth that somehow seemed to follow a hidden pattern.

It was hard to believe such a cave system was the work of rats, but that was the reality.

Fortunately, Fiery Eyes provided night vision, preventing him from going in circles in the winding tunnels.

And Ling's intelligent analysis kept him on the right path.

The groups behind him weren't so lucky; they got lost almost immediately.

After walking for a while, Wang Qian Duo's feet suddenly found no purchase, and his vision dramatically widened.

Before him lay an underground world, a world with mountains and water, everything but sunlight.

Below the underground world was a jungle formed by unknown plants, while above hung stalactites like ice daggers.

There was a vast distance between the stone ceiling and the ground. However, since there was no light whatsoever, even with the boost from Fiery Eyes, Wang Qian Duo couldn't see very far.

But based on his initial observation, the environment here was vastly superior to the wasteland on the surface.

What a profound irony!

But none of this mattered to Wang Qian Duo. He slowly flew into the underground forest, beginning his search for his target.

There were far more rats in the underground world than on the surface, but Wang Qian Duo didn't get entangled with them.

His fatigue timer was running low. He could always come back tomorrow to level up. His only goal now was to find the seventh type of demon rat to complete the hidden quest.

Perhaps it was due diligence, or perhaps it was his luck.

After much hardship, Wang Qian Duo finally found the seventh demon rat beside an underground lake.

However, this demon rat was quite different from what he had imagined.

"This thing is huge!" Wang Qian Duo muttered, looking at the "small mountain" that was drinking by the lake, its eyes degenerated into nothingness.

Underground Demon Rat Elite
LV10
Leader
HP 20000
MP 1000
Attack 230
Defense 50
Skills: Bite, Claw Attack, Earth Spike, Burrow, Petrifying Skin, Earthquake