Humans of the Apocalypse Who Cannot Reproduce

It felt as if every organ in his body had been massaged, or like stepping new clothes after a bath on a hot summer day and standing under a tree enjoying a cool breeze.

A heartfelt sense of comfort reached his soul, a feeling of clarity and invigoration from the inside out that was hard to describe.

It was the wonder of evolution, every cell rejoicing.

Under this mental sensation, even the actual changes in his muscles and bones, which caused a sore, numb, and itchy feeling, were selectively ignored. There was only joy.

After the five-hour effect period of the Genetic Potion ended, Li Yang, completely reborn, felt his new self with a slight smile.

He had grown five centimeters taller, his muscles were tighter, and his arms and legs looked like they had been adjusted, becoming more aesthetically pleasing and slender. The proportion of his upper and lower body was harmonious and comfortable, and his fingers were long and straight.

More importantly, his internal organs seemed to have been strengthened. He felt his entire body was full of energy and vitality.

He couldn't help but take out a mirror and look at himself. A version of himself that seemed subtly adjusted appeared in his sight. There weren't any major changes at first glance, but looking closely, he could see his entire face was more harmonious and natural.

He lowered the mirror, and his expression immediately became serious.

"This is not good."

Li Yang stood on the rooftop, feeling the state of his body, his expression changing.

How did it change so much all of a sudden? It felt like his underwear wouldn't fit anymore.

Although it gave him a pleasant feeling.

But if his underwear didn't fit, was he supposed to go home commando?

"Why is everything else so harmonious, but only this place changed so much?"

Li Yang couldn't help but look at himself up and down in the mirror. Then he looked at the female slave who was sweating profusely and collapsed on the ground in front of him, and couldn't help but ask.

He had already experienced the magic of the Genetic Potion and no longer doubted this miraculous medicine. It was just this disharmony that made him somewhat confused.

His changes, over these five hours, were something the female slave had the most intuitive experience of. She had a clear sense of how big the changes were.

"Master, when there was nuclear contamination before the apocalypse, a strange unknown virus was born. That virus caused the fertility rate of all humans to drop by 90%. At that time, to solve this problem, biological technology was constantly being advanced. So basically, every generation of Genetic Potions focuses on amplifying this aspect."

"However, please don't worry. You can try to feel it there. How large it can become completely depends on your own will, but no matter how large it becomes, it will bring you the happiest experience. The purpose is to be able to successfully reproduce with any body type of the opposite sex."

The five-fold dose of the potion was indeed potent. Even Chang Yanyan, who had taken Genetic Potions for a long time, couldn't fully endure it. She lay limply on a blanket she had brought, looking at Li Yang with alluring eyes and said.

"What, the fertility rate dropped by 90%?"

Li Yang understood the reason after hearing this, but his expression froze when he heard the reason for such a big change in this area.

Something like this actually happened?

"Yes, this matter became big news throughout the entire human world at that time, and everyone was worried. Fortunately, after the Zombie virus, which mutated in an unknown way, appeared, the surviving humans no longer had to worry about this matter."

Chang Yanyan replied with a mix of emotion and confusion, then she pulled herself together and looked at Li Yang with a blush: "Master, the effect of the basic Genetic Potion I took is only one-fifth of yours. Being able to accompany you through the entire evolution process was already my limit. If you want to use me again next time, you'll have to wait a day to recover."

"However, if Master wants to use me, I can also take a recovery potion and continue to train with Master."

The woman spoke softly. Li Yang shook his head calmly, but he was somewhat curious about the matter of fertility she mentioned: "Did the new generation of Genetic Potions allow people to break through this restriction?"

"It is rumored that the gene laboratory in Base City Number One, where the most cutting-edge technology is gathered, is developing the latest seventh-generation Genetic Potion. If this potion is successful enough, it might be able to break the shackles, but now..."

Chang Yanyan shook her head, her eyes filled with confusion: "After the Zombie virus infected the world, the remaining humans... have completely lost the ability to reproduce. In these fifteen years of the apocalypse, there hasn't been a single case of pregnancy, let alone a newborn."

"Since this data result came out, we have never thought about these things again. We just matched men and women under the command of the Base City to survive and find pleasure in it, waiting for subsequent scientific research results, or... death."

The confusion in Chang Yanyan's expression slowly dissipated with her voice. She immediately shook her head and turned to look at the surrounding city, saying with emotion: "If it weren't for this, these not-so-threatening Zombies would have been completely eliminated long ago, and we wouldn't be trapped here."

"But the Zombie virus is beneficial for gene research, and coupled with our scarce surviving population, even if we kill all the Zombies in the world, we wouldn't need to reclaim the cities, and it would waste more time that could be invested in gene research."

"Furthermore, these cities are severely contaminated by nuclear radiation and have no value for continued habitation. With the help of Genetic Potions and various weapons, Zombies pose no threat to humans. It is reasonable not to waste time here."

"After all, if the matter of reproduction cannot be properly resolved, then after the surviving humans die, humanity will also perish, and eliminating the Zombies will lose its meaning."

"On the contrary, if we keep them, maybe one day they will all evolve into new humans."

Chang Yanyan finished mumbling, then suddenly realized that she had been too relaxed after five hours of high-intensity combat.

As a slave, she shouldn't say these useless things to her master and cause him unnecessary anxiety.

Immediately, Chang Yanyan quickly got up and knelt in front of Li Yang to apologize: "Master, I'm sorry, I have never been a slave before and don't know the rules. I said a lot of nonsense to you."

"..."

"It's okay, get up. Can I take this second bottle of potion now?"

Li Yang was stunned for a moment before slowly shaking his head and speaking to the woman. He took out the second vial labeled [Nerve Reaction Potion] while looking at the woman in front of him with a strange expression.

It was a bit outrageous.

The reason why the Zombies hadn't been completely eliminated and the world was at its end was because the remaining humans couldn't reproduce!

However, thinking about it carefully, it seemed to make some sense. Otherwise, how could they not be able to deal with Zombies that he could kill with a crossbow, given their high level of technology?

But then again... did he still need her to take contraceptives?

"Master, your compatibility with these two potions is extremely high. You can take them consecutively."