The biggest inconvenience of living underground is the difficulty of ventilation.

People have also been thinking of ways to solve the problem.

For example, laying ventilation ducts, using ground houses as shelters to set up vents, installing underground exhaust fans, and so on.

And it just so happened that the house that Tang Qinqin chose as a place to settle down was the ground bunker for one of the main vents.

……

Enter the game world for the second day.

It rained for half a night, and in the early morning, it was well received.

After eating, Tang Qinqin, who was strolling around the house, heard a strange sound in the next room, so he walked over with a light footstep.

Although he was a little scared, he thought that if he didn't find out where he would stay, he would not feel at ease when he rested at night, so Tang Qinqin had the courage to push open the door that had been silent for a long time.

Then, before he could see anything clearly, he heard a high-pitched scream from inside the room.

"Ahhh——!h

Tang Qinqin couldn't help but rub his ears.

Good guys, this is a tenor singer who has never been seen in a century!

It's just that the tune style is a little scary.

She and the man who gradually shut up and lowered his body to the ground looked at each other for a long time before trying to communicate with each other in a normal human manner.

A ventilation duct repairer, or plumber for short, is the profession of this talented soprano man, Lin Sen.

Patrol the line every day, be responsible for surveying whether the ventilation in the area is normal, and clean up the dirt of the exhaust outlet, which is his unstoppable work task.

The scream that unconsciously soared just now didn't mean that he was a coward, but that it had been silent here for a long time, and even the rats that were still sloping around at the beginning were gone.

"Where are you from? Outside, isn't it the same as here? Lin Sen asked.

The girl in front of her looked different from them, her skin was healthy and ruddy, her hair was black and shiny, and her body was full of vitality.

Living underground for many years without seeing sunlight, the standard of their own people is pale complexion, a rickety body due to calcium deficiency, yellow, white hair, and eyes that have been in the dark for a long time, and their eyesight is reduced.

It's no wonder that he is curious, he has lived underground since he was born, and he has heard his parents reminisce about their past, and he also knows that the living environment is the same all over the world.

Since it's all the same, where did this girl who looks so different come from?

"I'm from Y City." Tang Qinqin spoke about where he lives in the real world.

That doesn't seem like a lie to him, right?

"Is that the same way you all have there?" Lin Sen looked at Tang Qinqin with envious eyes, and his tone was full of yearning.

"yes, but it's a long, far away place, you see, I'm not lost."

……

When Lin Sen returned to the underground after completing his daily work, he found the person in charge of the town management and explained to them the situation in Tang Qinqin.

The person in charge who had been thinking all day and was busy finding and dealing with water resources heard that the person who came was a girl, so he didn't think much about it, so he waved his hand and Lin Sen looked at the arrangement.

This is also based on his trust in the security forces of the underground town.

Since the advent of the "end times", the 360 industries that were once full of flowers and contended with a hundred schools of thought have gradually declined, and now there are very few left.

The main manpower is mostly invested in major emerging industries such as underground planting, groundwater treatment, and underground infrastructure management, among which the "Tianji Squad", which is responsible for taking turns to form teams on duty and monitor the weather conditions on the ground, also has a part-time security position.

In the evening, Tang Qinqin was finally able to set foot in the underground world that she was interested in.

……

Tang Qinqin felt that the passage to the underground town must have borrowed from the survival wisdom of small animals who were good at burrowing and hiding, which was called "the road is long and resistant".

The twists and turns, and the eighteen bends of the mountain road do not seem to be enough to describe the trend of this passage.

In fact, this is also a last resort, in order to prevent harmful substances such as acid rain on the ground from entering the underground town as much as possible, causing damage and damage.

The arrival of Tang Qinqin has attracted the attention of many underground town residents.

In the hearts of these people, young and old, with white beards, Tang Qinqin with black hair and black eyebrows is very rare.

At this time, Qin Zhuo was excitedly describing to Grandma Ning the Tang Qinqin he had just seen: "...... That sister has black hair, not like us, but she is very good-looking, especially the eyes......"

Originally, Ning Xuan, who was just an ordinary lively listener, was stunned.

It's like turning on a memory switch that has been sealed for a long time, and many memories of youth begin to scroll through in my mind.

Once upon a time, she also had black hair and charming eyes.

But even now that she couldn't see, she knew she was full of gray hair.

So this brunette girl?

Grandma Ning stood up a little eagerly and touched the crutch on the side: "Xiao Zhuo, quick, take grandma to take a look, has that person left?" ”

She couldn't tell why her heart was beating so fast at the moment, as if there was a voice in her head urging her to pass, and as for what could happen to the past, she had no heart to think about it.

At this time, it was close to dinner time, and the people who had just been on the third floor and the outer three floors were surrounding Tang Qinqin to look at the strange people had gradually dispersed.

Tang Qinqin, who was staring at him and was a little red-faced, just wanted to make up immediately and put himself on a familiar look.

At that moment, she just felt like a monkey in a zoo.

"Sister, sister......" An eager voice belonging to a teenager came, and a thin teenager walked over with an old woman on crutches.

Tang Qinqin looked at the strange old man and the young in front of him, but people couldn't help but get close, and said hello with a smile.

The embarrassment that had just condensed at the tip of my heart disappeared in an instant.

……

Lin Sen asked the person in charge to arrange a board room for Tang Qinqin, not far from Grandma Ning's house.

Because of this, at dinner, Grandma Ning resolutely invited her to come over for dinner.

Tang Qinqin tasted tree roots, insects and steamed potatoes with his grandparents and grandchildren.

Of course, the bugs didn't really eat it, and she quietly stuffed it into obsidian.

Radish and cabbage, each has its own love, isn't it?

After eating, Grandma Ning sent Qin Zhuo to wash the dishes.

"Qin girl?" The old lady tried to scream like this, but when she saw that Tang Qinqin didn't say anything against it, she relaxed and continued: "They all said that you have black and shiny hair, and the old woman is very interested, and I want to keep you talking, don't be afraid." ”

"I used to have beautiful black hair, but I can't see it anymore." A sigh of regret.

"Qin girl, can you tell me, are the people you have there just like you? You live on the ground and you can see the sun every day, right? ”

"Grandma Ning, that's right." Tang Qinqin saw the tears flashing in the old man's eyes, and his heart was depressed.

"Qin girl, when you go back, can you please take me and Xiao Zhuo?"