Lin Yan's Son

On the bus, everyone's emotions remained high.

For a very long time, they grew up in such a peaceful and comfortable environment. In their eyes, this was the world: a vast sky, clear clouds, and tranquil mountains and seas.

But when they enrolled in martial arts programs, were admitted to universities, and even demonstrated their extraordinary talents, they realized that... this once-familiar Earth had only revealed the tip of the Iceberg.

Hidden behind it lies a vast and mysterious world.

A cave!

Cave Creatures!

"World Suppressing Divine Spear" Song Shushi, "Born General Star" Chunyu Jin, "Thousand Army Sword" Liu Taihang, "Thunder Lion" Luo Kedi, "Sky Wind Blade" Qi Mo...

These names, which are unfamiliar to ordinary people, are legendary in that more mysterious world.

It is because of this group of people who fearlessly embark on this path and take on dangers that ordinary people cannot bear that the outside world becomes so colorful and wonderful.

The moment they sign their names on the application documents and confidentiality agreements, they too embark on this thorny path.

To lift up the sun from the shadows, so that light can continue to shine upon the world.

Perhaps... they will die on the battlefield in the next moment.

Or perhaps, one day they too will become legends.

Take Chunyu Jin, who guards the Cave of the Gods, for example. According to legend, he graduated from the highest university on Earth, "Star River University", entered the Planetary level at the age of 15, and broke through to the Stellar level before the age of 40!

This talent for cultivation is already terrifying, and his most legendary experience is that he obtained a precious opportunity in the "Cave of the Gods" located on the original Europe continent. Since then, his strength has soared rapidly. In just 20 years, he has gone from the third Stellar level to the Cosmic level.

Among the top figures on Earth today, he is the youngest Cosmic level powerhouse!

He possesses exceptional leadership skills and is hailed as a "Born General Star." Although he is not yet a hundred years old, he is already a pivotal figure on Earth and has been invited to join the Military to lead his troops in guarding the "Cave of the Gods."

Meanwhile, the young people on the bus were all graduates of martial arts programs from prestigious universities in Chang'an City. After signing the application documents, they were eligible to join the Chang'an City Martial Arts Special Training Class free of charge through special funding from the Ministry of Education.

Only those who successfully pass the special training course assessment will be allowed to enter the underground battlefield.

The minimum requirement for passing the "Second World" Trial Tower is passing the 16th floor, with a physical exertion level exceeding 15 times the normal level. This is the assessment content of the martial arts training class.

This trip to the underground battlefield involves entering the Cave World and fighting against Cave Creatures in designated areas. Only after passing this practical assessment will they be qualified to venture deeper into the Cave World for adventures.

These martial artists are different from Military martial artists. They are under the jurisdiction of the Ministry of Education, with a relatively loose organizational structure and a high degree of freedom. Their gains in the Cave World will belong to them, while the state and other organizations will acquire them.

Whether or not to sell is not mandatory.

They understood—

Once you enter the Cave World, you'll find it fraught with danger, yet also full of endless possibilities.

These young people are willing to fight to protect their homeland and to fight for humanity, shouldering the mission entrusted to them by this era.

"Teacher Zhang, what's the name of the cave we're going to now?" a seemingly cheerful male student asked.

The two people accompanying them were Yuan Xin, the vice president of Chang'an Martial Arts University, and Zhang Qide, a teacher at the Chang'an Martial Artist Special Training Class.

Zhang Qide calmed himself down, turned his head to look at the front of the bus, and slowly said, "We are now heading to the sixth underground cave discovered on Earth 13 years ago, which is named 'Tiannan Cave'."

"Tiannan Cave is located near Jiangnan City. The initial assessment of its danger level is... It is currently ranked fifth among the seven major caves that have been discovered. With the assistance of the Military, we will conduct a live-fire assessment of you."

"Students, you have all successfully passed the 16th floor of the Trial Tower and are the elite martial artists of our university in Chang'an City. I believe that as long as you can unleash your full potential, you will definitely pass the practical assessment!"

Zhang Qide said.

However, it was clear that there was still a hint of worry in his eyes.

Successfully passing the 16th floor of the Trial Tower with a power level exceeding 15 times demonstrates that these students possess considerable strength and have accumulated extremely rich combat experience in the virtual world. However... this precisely proves the difficulty of the actual combat assessment.

This is because... unless it's a large-scale military operation, ordinary martial artists simply cannot survive in the Cave World.

These Cave Creatures are far more terrifying than monsters!

Once the battle begins, there must be no hesitation. If other Cave Creatures are attracted to surround and block you, or even if Cave Leader (Blood Mantis) appears, it will be an absolute nightmare.

Of course, as long as they can perform at 80% of their strength in actual combat, that should be enough to pass the assessment.

The assessment consists of two parts: killing a specified number of Cave Creatures and successfully surviving in a designated area for two months.

Meeting any one of these conditions is sufficient.

"Don't worry, Teacher Zhang," a student said loudly.

The other students chimed in.

"We are ready."

"We will definitely come back with good news."

"Okay!" Zhang Qide breathed a slight sigh of relief as he looked at the serious expressions on the young people's faces, and then nodded emphatically.

The vehicle drove for more than ten minutes before stopping. Vice Principal Yuan Xin said in a low voice, "Get out of the car now and check your belongings."

Everyone got off the bus.

What comes into view is a military-controlled area covered by metal wire mesh, and even the metal material is a D-rank metal called "Xuanjin".

There's a guard every three steps and a sentry every five steps.

From a high altitude, one can see various defensive fortifications, Laser Cannon, special detection and monitoring instruments, and fighter jets standing by at the airport.

Soldiers and warriors, some wielding Laser Gun and others carrying melee weapons, maintained order and security at this crucial location under the command of the central command.

The military power visible from the outside is extremely strong, which also proves the great power exerted by the state apparatus when it is in operation.

Tiannan Cave!

This is the entrance to the "Tiannan Cave". If the Cave Creatures show any abnormalities, this will be the first checkpoint on Earth.

As the students looked at the heavily guarded forbidden area, they felt a sense of threat and pressure. The Laser Cannon began to rotate, aiming at them.

Two colonel-level officers stood at the entrance, followed by fully armed soldiers. Both officers possessed strength exceeding the Stellar level and exuded a sharp and imposing aura.

"The Chang'an City Martial Arts Training Class?" one of the officers asked, his expression softening considerably after receiving an affirmative answer.

"Identification, entry permit!"

Yuan Xin took out his identification documents, the school's application documents, and the Military Department's approval document, which the other party checked one by one.

After everyone finished their inspection, the officers and other soldiers, with their resolute expressions, saluted the group of students!

"This journey is a war to defend our homeland and the destiny of humanity. We will return victorious!"

"Triumphant return!"

The powerful roar stirred the crowd's emotions once again.

The soldiers watched them until they entered the depths of the base without lowering their arms.

Even during the Nirvana Era, when national order faced its most severe challenges, the military remained the main force, establishing war bases and safeguarding human peace.

Not to mention that social order has not been greatly affected at present.

Perhaps, aside from the military, whether other martial artists with extraordinary martial prowess enter the underground battlefield is entirely up to their own volition.

However, based on the important value system of "social contribution" and the simple emotions of being human, there are unwritten standards in the hearts of many people.

Only by charging into the underground cave can one truly be a hero.

As the group walked along, even before entering the underground cave, they already felt a great sense of responsibility and fell silent for a moment.

They continued walking forward with the group.

Along the way, inside the base, the defenses were tight, with sentries everywhere, and small groups of troops could be seen withdrawing from the depths of the base from time to time.

Their combat equipment was stained with green blood and smelled foul.

Many people carry injuries, even resulting in physical disabilities, but... with current medical technology, as long as they don't die on the spot, they have a chance to recover and heal.

As we walked...

Led by base personnel, they entered a metal hall.

The hall was empty except for a tightly sealed alloy door made of Grade E alloy.

The gatekeepers were two Military warriors who exuded a chilling aura. Through the intelligent Light Brain, it could be determined that their strength reached the Stellar level nine.

"Behind this lies the gateway to the Cave World," Yuan Xin explained in a low voice.

The students' eyelids twitched. Although nothing seemed amiss, the moment they saw the door, they felt a strong sense of urgency.

"Old Yuan, are these the new recruits from your Chang'an City?"

"Hmm, it looks quite professional." One of the older-looking guards glanced at it and said with a smile.

This wasn't the first time Yuan Xin had done something like this, and he was fairly familiar with them, so they chatted briefly.

Since this was the first time these students had visited Tiannan Cave, their identification documents had to be checked again according to the rules.

As the guard inspected them, he said, "I know you young people are full of energy, but once you enter the underground cave, you must be careful in everything you do. Only by preserving your lives can you have the ability to kill the enemy!"

Although he kept rambling on and on, everyone could hear the concern in his voice.

"Alright, you can go in now. Old Yuan will lead you to the designated area for the practical assessment." The guard placed his hand on the metal door, about to open it.

Everyone felt a mix of nervousness and excitement.

Just then—

"Woo-woo, woo-woo..." Suddenly, a piercing alarm sounded throughout the entire war base, and spotlights lit up one after another. The expressions of the two Military warriors guarding the entrance to the underground cave changed instantly.

"This is... a Level 1 alert?"

"Could it be..."

"Oh My God!"

They didn't continue speaking, but hurriedly looked at Yuan Xin and the others, saying urgently, "Now, leave the Tiannan Cave Base immediately. There have been some unexpected situations inside the cave, and powerful individuals will arrive to handle the situation. Your assessment plan will be postponed!"

"Understood!" Yuan Xin understood the urgency of the situation and, without having time to explain to his classmates, led them quickly away along the safety passage.

After leaving the war base and boarding the bus again, the students asked as soon as the bus started moving, "Teacher, what happened?"

This is really strange!

Even Zhang Qide was somewhat puzzled.

"Level 1 alert..." Yuan Xin looked at the military base and said in a low voice, "The last time we were on Level 1 alert was 37 years ago in the Fog Island Cave. That was also the first time Earth encountered Cosmic level Cave Creatures in the Cave World."

"It is said that during the Military's exploration of the Fog Island Cave, they discovered an important treasure, but the enemies they encountered were also astonishing, numbering as many as 26 Cosmic level Cave Creatures, which triggered a Cave Creatures riot with a wide impact."

"It was on that occasion that 'Thousand Army Sword' Liu Taihang was trapped in enemy lines for fourteen days and nearly lost his life."

Everyone was immediately taken aback.

No wonder everyone says the underground world is extremely dangerous. In today's Earth, the Cosmic level is the strongest. 26 Cosmic level Cave Creatures... what kind of concept is that?

This is absolutely terrifying!

They gazed at the receding war base, their eyes filled with worry.

What happened at the Tiannan Cave this time, 37 years later?

At this moment, in the Tiannan Cave.

"Buzz!" "Buzz!" "Buzz!"

The sounds of flapping wings and chirping were chaotic and cacophonous, sending shivers down one's spine as swarms of Green Mantis descended from all directions.

At this moment—

"Tear!"

A thick bolt of purple lightning suddenly lit up the sky.

"Tear!"

Dense and numerous purple bolts of lightning instantly illuminated the dark world, twisting and radiating like electric snakes, with bolts of lightning stretching across the sky.

"Damn it!" came an angry roar.

Rumble!

At the center of the Green Mantis's aura, a purple aura suddenly spread out, with electric snakes flowing within it, clearly forming Lightning Domain.

The pervasive Lightning Domain continued to expand, unleashing Thunderbolt lightning that sounded like the roars of dragons and tigers.

In an instant, the world was filled with streaks of lightning, and a large number of low-level Green Mantis were instantly reduced to dust by the lightning.

"Boom!" A burly, tall figure burst out from the swarm of insects, his eyes cold and his brows furrowed.

Whew! Whew! Whew!

Green Mantis, whether from the ground or in flight, began to surround and Strangulation him in an orderly fashion.

Faintly, one could discern that it contained numerous red crustaceans.

"Am I, Lao Luo, really that unlucky?" His expression changed drastically. "This time, during my exploration, I actually encountered a swarm of Blood Mantis, including even a Cosmic level Blood Mantis!"

"The Blood Mantis is stronger than the Green Mantis in combat, but that's not the most important thing. What's most deadly is its leadership ability."

This person is named Luo Kedi, nicknamed "Thunder Lion". He comes from the Luo Family of Yangzhou City and is the ninth-generation descendant of Luo Feng. He has the strength of the Cosmic level Tier 2 and possessed a domain when he was at the Stellar level. He is now at the Domain Triple.

In today's world, he can definitely be called Grandmaster.

The official names of the Green Mantis and Blood Mantis on Earth are "Cave Creatures" and "Cave Leader," respectively. However, for ease of reference, many martial artists simply name them based on their appearance, thus guessing their true names directly.

With Luo Kedi's Cosmic level Tier 2 strength, he had nothing to fear about this swarm of Green Mantis composed of Stellar level and Planetary level.

However, the Cosmic level Blood Mantis lurking among them was like a persistent ailment, making him dare not be careless in the slightest.

"Request reinforcements immediately!" Luo Kedi licked his lips, his expression changing slightly. "The appearance of Cosmic level Blood Mantis is not a good sign. Last time, a batch of Cosmic level Green Mantis appeared in the Fog Island Cave, but we didn't see any Blood Mantis. If another batch jumps out now, under the leadership of the Blood Mantis, my life, Old Luo, will be over."

This Cave World is vast and endless, and the deeper one explores, the more powerful the Cave Creatures that roam within become, and the more precious the treasures that exist within.

This time, as usual, Luo Kedi explored the Cave World, but encountered Cosmic level Blood Mantis. He was so frightened that he immediately activated the highest level alarm, ordering the warriors and troops in the Cave World to evacuate quickly, and asked other Cosmic level powerhouses on Earth for help.

This is no joke.

"Kill!"

He wielded a Black Battle Saber -black War Blade, its blade crackling with electric snakes. Facing the surging horde of insects, he launched a terrifying slaughter, piercing through the entire swarm time and again, killing one Green Mantis after another.

But...

"Crunch, crunch!" A Green Mantis whose body had been cut in half by Black Battle Saber was actually biting some of the Green Mantis corpses next to it. As it devoured them, these Green Mantis quickly recovered and even became more powerful.

"This is bad." Luo Kedi suddenly remembered something, "These Cave Creatures can devour the corpses of their own kind to evolve!"

Under normal circumstances, there would be no need to worry, as the number of corpses required to evolve from Stellar level to Cosmic level is enormous. However, with the appearance of Cosmic level Blood Mantis, all the surrounding Green Mantis have swarmed over.

In this constant battle, it is very likely that an astonishing number of Cosmic level Green Mantis will be cultivated.

"Damn it, damn it!" Luo Kedi's eyes were bloodshot. He dared not wait here for other strong people from Earth to come to his aid. He was determined to break through.

However, for a Cosmic level Tier 2 being in such a situation, even self-preservation would be difficult, let alone breaking through.

20 minutes later!

"This is a huge problem." Luo Kedi's face was pale, covered with wounds, and his pupils trembled.

Buzzing...

The swarm of insects suddenly dispersed, and a Blood Mantis with a red carapace flapped its semi-transparent wings, exuding an extremely powerful aura. It was clearly the same Cosmic level Blood Mantis they had encountered earlier, and it was no longer hiding itself.

Behind it.

"Buzz!"

"Buzz!"

"Buzz!"

After this long battle, seven Cosmic level Green Mantis have evolved, which, under the leadership of the Blood Mantis, are as one.

Based on his experience, a group of seven Green Mantis led by Blood Mantis is more terrifying than seventy Green Mantises. With the Blood Mantis acting as a spearhead, Luo Kedi suddenly realized he was in big trouble.

"Kill!" Luo Kedi gritted his teeth; he had no choice but to fight!

Just five minutes later, Luo Kedi's right arm was severed, his face was pale, and even his Origin Force was greatly depleted. In this battle, he had only killed one Green Mantis.

This was still due to the advantages of his weapons and secret techniques.

"I should never have listened to my dad and started practicing martial arts. Honestly, my childhood dream was to marry 100 wives..."

As Luo Kedi faced the overwhelming horde of Cave Creatures that were frantically attacking from all directions, he seemed to see himself being devoured into dust.

At that moment, he felt relieved.

"Even if they die, kill as many as possible!"

Luo Kedi's eyes turned red.

He wielded the knife directly in his left hand, clashing and killing the swarm of Green Mantis, with countless bolts of lightning flashing across the sky and earth.

"It's over." He slowly closed his eyes, and out of the corner of his eye, he could already see... the Cosmic level Blood Mantis's sharp, War Blade -like forelimbs slashing toward his head.

1 second, 2 seconds, 3 seconds...

He suddenly opened his eyes; it wasn't over yet.

"Boom!"

A magnificent and intense sword light lingered in the dark sky for a long time, stretching for thousands of meters.

Within this area, all the Cave Creatures were wiped out, and even the few Cosmic level Green Mantis and Blood Mantis were all killed by this one sword!

"How... how is this possible?"

Luo Kedi stared at the sword light, his eyes suddenly widening in shock. "The Light Origin Law, could this be the Light Origin Law... Someone on Earth has actually crossed the threshold of the law?"

According to his understanding of cultivation knowledge, one must reach the eighth or ninth level of the realm before it is possible to begin to sense vague fluctuations of the laws and begin to comprehend them.

Even so, crossing the threshold of the laws is still incredibly difficult.

And now someone has actually taken this step?

This was something that Luo Kedi, one of the strongest people on Earth, had never imagined. Could it be... that their ancestors had returned from the universe?

Luo Kedi looked up and saw a figure standing in mid-air.

He wore silver battle armor adorned with ancient patterns, and a helmet that revealed only a pair of pale gold eyes, as intense as the sun.

In his right hand he held a black, ancient-looking heavy sword that inspired awe.

"... Stellar level nine!" Luo Kedi was stunned.

This guy who killed seven Cosmic level Cave Creatures with a single sword strike and seemed to have crossed the threshold of the Law of Light was actually only at the Stellar level nine?

How is that possible?

Just as he was about to speak, the mysterious man in silver armor turned his head, transformed into a streak of light, and instantly disappeared from his sight.

Who, who is this person?

The mysterious person soon reappeared two thousand kilometers away after leaving.

He removed his silver battle armor, revealing a young face, as if he were still a teenager. A set of Military combat equipment appeared out of thin air in his hand, and he began to put it on. The rank insignia on his body proved that he was a colonel.

After changing his equipment and weapons, the boy was clearly carrying a spatial storage device.

Suddenly--

A figure emerged from behind him.

The man was dressed in black, with bright, piercing eyes. He looked at the boy, opened his mouth as if in disbelief, and then hesitated to speak.

"Hmm?" The boy was very alert and quickly noticed the person's presence.

For a moment, his expression showed surprise, and he hesitated before asking, "You are... Uncle Luo?"

Luo Feng burst into laughter, looked at the young man, and said, "I am Luo Feng. Can you tell me your name?"

The boy looked at the uncle he had only seen in video recordings and felt quite curious.

He said slowly, "My name is Lin Xiao."

"Lin Yan's 'Lin'!"