Even though the old professor's face was quite ugly, Song Ziyu decided to stay after weighing it.
Not only because of the coercion and inducement of the professor and this bullshit car, but more importantly, Song Ziyu was indeed ignorant of the current situation and needed this place as a foothold.
After all, it is now very clear that he is in an alien world, and it is a world ruled by silicon-based life forms. He really needs someone to guide him.
Of course!
Someone saved his life, and he really needed to thank him, so Song Ziyu reluctantly agreed to live in the base called Xiacheng temporarily and act as a security guard for the base.
So with the personal guidance of the professor and the Lord of Xiacheng City, Song Ziyu changed his appearance and became a member of Xiacheng Base.
With his identity revealed, Song Ziyu began to wander around the base called Xiacheng.
As the name suggests, the lower city is actually a shelter space built underground.
There are about 6,000 people living in this shelter base, and most of them are sallow, thin, unkempt, and look as miserable as they can be.
In Song Ziyu's view, in such an environment without fertility and protection, it is actually only a matter of time before death.
During this time, Song Ziyu and Xiao Ai made friends.
This little girl, whose biological age is only fifteen or sixteen years old, has a character that does not hold grudges. After some exchanges, Song Ziyu used a little trick to make Xiao Ai his little crush.
From Xiao Ai's mouth, Song Ziyu learned that the living environment of human beings in this current plane is very harsh. Most of the human beings are hiding in bases like Xiacheng to survive, and life is very difficult.
After understanding these facts, Song Ziyu couldn't help but sigh in his heart. When he traveled to Longshan, he thought that the fate of human beings was already miserable enough. However, after arriving in Xiacheng, he really understood what it means that there is no worst, only worse. .
Grandma’s!
Compared with the lives of people here, the people of Longshan live a prosperous life.
Don't say anything else, just saying the same thing is enough to make people feel sick...
In the first few days of living in Xiacheng, Song Ziyu discovered that although the place was poor and lacking in supplies, this place was always able to provide the "protein" food that Song Ziyu had eaten before on time every meal time.
to be honest!
The taste of this protein energy block is not very good, but from the perspective of energy supply, it is still worth eating.
This made Song Ziyu very curious.
What kind of family can eat this kind of energy-rich food every day?
Song Ziyu felt extremely curious.
This place is so poor that it takes three people to wear a pair of pants, but it is miraculously self-sufficient in food... It really refreshes the outlook on life.
However, Song Ziyu also discovered some strange details. For example, Ai Xin really disliked eating this kind of brown "protein energy block" and would never eat it unless necessary for energy replenishment.
"Why, you seem to be disgusted with this kind of thing?"
Song Ziyu asked while eating.
After these days of rest, the hidden injuries on his body have healed to almost 80%, and Song Ziyu has almost recovered to 80% to 90% of his strength.
So Song Ziyu has a great appetite.
"Seeing how happy you are eating, I must let you know what these things are made of."
Ai Xin said with a wicked look on her face, leading Song Ziyu towards the depths of the Lower City Shelter.
"oh?"
Like a curious baby, Song Ziyu followed Xiao Ai to an inaccessible area of Xiaocheng.
Here, Song Ziyu saw an incredible scene!
I saw that this area had been transformed into a very pleasant environment, with a simulated sky and real grassland, and a large number of animals around it.
Breeding on such a scale made Song Ziyu feel incredible.
It seems good to compare this place to a utopian Garden of Eden.
"I didn't expect you to make such a big noise underground! It's amazing."
Song Ziyu said in admiration, her mouth was watering as she spoke.
"Don't even think about eating them. These animals are the key to the operation of the entire base."
Xiao Ai pointed to the poop pooped by the animals on the ground and said, "We still have to rely on them to defecate."
"Defection? What is the use of these feces?" Song Ziyu became curious.
"You'll find out soon."
Xiao Ai said with a smirk on his face and led Song Ziyu through the underground breeding farm and then to the next area.
Here, Song Ziyu saw a huge septic tank!
"This is……"
Song Ziyu suddenly felt that the protein energy block in his hand no longer smelled good.
Xiao Ai said with a bad smile: "This is the separation tank. The feces excreted by people and animals living in the lower city will be separated and processed here."
What does "separate processing?" mean?
Song Ziyu asked curiously.
Xiao Ai said: "First of all, you need to know the composition of feces! Most of the components of feces are water. This part of the water is very precious. After entering the separation tank, it can be filtered, disinfected and purified, then purified, and finally turned into precious fresh water. .”
"I'll go! Are you kidding me?" Song Ziyu's eyes almost burst out of their sockets.
"Do you think I'm a joke?" Xiao Ai put away the evil smile on his face and said seriously: "Seventy percent of the fresh water supply in the lower city base is obtained by purifying feces and urine!"
"Then I can't drink the water in your base."
Song Ziyu muttered.
This is so fucking disgusting.
But Xiao Ai didn't care about Song Ziyu's ability to accept it, and continued: "Of course, in addition to water, there is a large amount of solid parts in feces. This part of solids includes protein, inorganic matter, fat, undigested Dietary fiber, dehydrated digestive juice residues, cells and bacteria, and rare vitamins that humans need to survive.”
Hearing this, Song Ziyu couldn't help but started to retching.
"You won't tell me... you pulled out the food I ate?" Song Ziyu wailed, feeling more painful than being stabbed three times.
Unexpectedly, Xiao Ai's verbal attacks were not over yet.
"You think that's it?" Xiao Ai said, "It's not just that!"
With that said, Xiao Ai opened a pipeline next to the septic separation tank, and then Song Ziyu saw a large number of cockroaches swarming crazily in the mixer.
This scene... is enough to make intensive terror patients faint.
Song Ziyu successfully made herself vomit.
"Don't feel disgusted. These cockroaches are rich in protein and taste good." Xiao Ai said.
"No dogs will eat these things." Song Ziyu smiled bitterly.
Xiao Ai said: "When you are hungry enough, you will want to eat anything."
Some people died, but not completely...
