Lin Ruo sat hidden on a large rock. The rock was very tall, and she could see everything below from there.

Seeing that these people were getting more and more agitated, she smiled and said, "Let them vent. They'll find out soon enough."

As Lin Ruo failed to appear, these people grew increasingly agitated, yet they felt a growing tightness in their chests, as if they couldn't breathe properly.

They were all experimenters, very intelligent, and immediately looked at the burning torches, noticing that the flames were flickering and looked like they were about to go out.

Their faces turned pale as they finally understood Lin Ruo's intentions. At first, they thought she just wanted to see them break down emotionally, but now they realized that she had already taken action!

She's so cruel; she's actually trying to suffocate them to death.

"Quickly put out these torches!"

"Find an exit, and use your superpowers to blast this mountain open!"

One after another, supernatural powers landed on the mountainside, but not a single speck of stone dust fell. They belatedly realized that Lin Ruo had frozen these stone walls with his supernatural powers! Although the ice that froze the stone walls was not contagious like before, it was extremely hard. When supernatural powers and weapons made of underground minerals were used to cut into it, not even a mark was left.

These people didn't believe in superstition. They thought that everyone's superpowers had their limits. They desperately tried to break through the stone wall, but in the end, they sadly discovered that they hadn't changed anything except making themselves even more oxygen-deprived.

"I'm only 25 years old. I don't want to die. I've survived this apocalypse for so long. I don't want to die in this dark cave like this..."

"Waaah~ If I had known, I would have preferred to die in the base with our families. At least our hearts would have been together."

"The oxygen in the cave is getting lower and lower, and I'm feeling weak all over. What should I do? What should I do..."

"Lin Ruo! Lin Ruo! Come out here! Let's have a fair fight!"

Lin Ruo sat down cross-legged, propping his chin up with his hand, listening to the words spoken by the people below. His heart was not stirred at all. These people spoke so pitifully and helplessly, yet they were ruthless when it came to killing.

She wondered what they would do after they had completely given up hope of getting out.

Sure enough, they didn't last long. As the oxygen in the cave dwindled, many people began to experience symptoms of oxygen deficiency, especially the ordinary survivors.

More and more people collapsed, and the fear of death constantly enveloped them. Finally, some people could no longer suppress the evil in their hearts and reached out their evil hands to those around them.

"Ah!" A shrill scream was followed by the strong smell of blood.

A man lay on the ground next to a petite woman. The man was lying on the ground with a bloody hole in his chest from which dark red blood was flowing, while the woman next to him held a knife in her hand and was panting heavily.

"Keiko! What are you doing!" A man, his face flushed, looked at the woman. "Ichiro was your husband, and you actually killed him!"

The woman called Huizi gave a pale smile. "Who told him to compete with me for the oxygen around us? I was suffocating, and he couldn't even see me. He was just gasping for breath, not caring about me at all. What's the point of keeping him around?"

After these words, the people in the cave seemed to have a switch flipped, and they all looked at the people around them with different eyes.

There's only so much oxygen in this cave, yet so many people are breathing it together. If there were only one person left, that person might be able to live a little longer.

It is unknown who started it, but the large-scale killing began. The first to die were, of course, the experimental personnel who were not superhumans. They had no fighting ability to begin with and were powerless against those superhumans.

Next are the lower-level ability users. Although they are ability users, their combat power is still too low compared to those higher-level ability users.

As they fought, jets of blood spurted out, covering the ground, walls, clothes, and faces. The lack of ventilation in the cave amplified the stench of blood to an alarming degree.

In the final stages of the battle, it becomes a fight between high-level superhumans.

Various supernatural abilities emerged one after another. Lin Ruo sat steadily on the high platform, watching with great interest as these R-country people killed each other.

From the moment she discovered that these people had killed all their own countrymen in the base in order to escape, she had imagined this scene. These people had no humanity or morality; they only cared about their own interests.

There's nothing more satisfying than letting people like that solve their own problems.

Those advanced superhumans had the blood of their compatriots on their hands, yet they wore ferocious smiles, their eyes bloodshot, and their faces, which were originally slightly red from lack of oxygen, were now flushed red.

It is clear that these emotions originate from their genes: cruelty, tyranny, selfishness, and darkness, not only towards outsiders but also towards their own people.

At this moment, the people fighting seemed to have forgotten Lin Ruo's existence. Only two words remained in their minds: "slaughter." Only by killing everyone could they have any hope of survival.

The blood quickly stained a large area of ​​the ground red, and the deep red blood slowly flowed down the stone wall, creating an extremely bloody scene.

Half an hour later, only the level 5 ability user was left alive in the cave. Although he was still alive, he was seriously injured and had no opponents around him. He knelt on the ground, exhausted, breathing heavily. The massive blood loss made his brain dizzy.

He shook his head, and suddenly a pair of feet appeared in front of him. His body stiffened. It was obvious who this person was; they had become what they were because of him.

He looked up and saw Lin Ruo looking down at him from above.

"Heh..." The superhuman chuckled, and the next second his eyes turned bloodshot, and the surrounding energy suddenly condensed. He knew he was definitely not going to survive. Since he was destined to die, he had nothing to hold back. He couldn't let the person in front of him live either. Even if he died, he would drag her down with him!

Lin Ruo sensed the change in the surrounding energy. He had to admit that when it came to courage, the R country people were a notch above the M country people. After all, their ancestors came from Z country, and the things in their bones could not be washed away even if they were hidden deep inside.

The energy emanating from this superhuman grew increasingly concentrated, but just as the crystal core in his brain was about to shatter, he suddenly felt the surrounding energy leaking out like a punctured balloon.

The energy that had expanded due to the self-destruction vanished without a trace in an instant.

At the same time, the level 5 ability user felt a sharp pain in his forehead, his vision went black, and he lost consciousness.

At the end of his life, he only heard one sigh, "This level-five crystal core cannot be wasted."