My sister of Douluo is Queen Qian Renxue

After getting off the dormitory building, Xu Hai was still confused.

He followed Bai Junya (a girl with an expressionless face) and Tong An (a girl with a carefree face), and Xiaoshou's roommate Ding Chao was beside him.

Bai Junya, who was walking in front, glanced at the restless Xu Hai, frowned, and turned to the canteen.Tong An asked in surprise: "Aren't you going to drink outside the school? Junya, you are going in the wrong direction."

"Xu Hai doesn't want to go. Let's just have something to eat. We have to go to the laboratory later."

Although this little girl has facial paralysis, she is very good at reading. Xu Hai smiled knowingly.

On the way to the cafeteria, Xu Hai saw groups of men and women, which were far from the combinations of men, women, and couples he imagined.Although he was filled with confusion, Xu Hai still forced himself to settle down and behave like a normal person.

However, when he passed by a public bathhouse and saw from the window a man and a woman washing their bodies there as if nothing had happened, just separated by a wooden board, he was still off guard.

Everyone treats each other as if they are of the same sex and there is nothing to peep on, which is incredible.

When he shifted his gaze, he saw three or four men and women walking towards each other, arm in arm.

It seemed that he was just a freshman or sophomore. These college students also saw him and were suddenly a little depressed. One of them, a girl with a slender waist wearing a skirt, asked kindly: "Senior, is there something wrong with us? Why? You look at us like this."

When Xu Hai didn't know how to explain, Tong An looked back, quickly pulled him, and apologized to several students: "Ah, I'm sorry, juniors, you seniors were doing experiments last night. I just came back in the middle of the night and I’m still awake, haha~”.

"Oh I got it."

The girl with a slender waist wanted to say something, but the male roommate beside her hugged her waist and pulled her away.

"Don't ask. It's very difficult to take the postgraduate entrance exam in our school. Those who can pass the exam are not normal people. Their brain circuits are different from mine. Come on, let's go back and take a shower. We have a self-study class tonight. "

Xu Hai: "...".

He was speechless. Although the boy spoke very quietly, his body did not have any spiritual energy to use, it was just an ordinary body. However, Xu Hai, who could still use the six-sense talent, naturally heard what the boy said.

This time, he seemed out of tune with the world.

This strange "customs and customs" may be related to the tree heart he is looking for.

But he couldn't be sure. Maybe it was just that this area was special, and other places were normal...what a ghost.

Normal painting style, that has this kind of amiable custom of men and women giving and receiving.

He wanted to do an experiment, so he looked at Tong An, who was pulling him. She was a carefree girl who was easy to coax at first sight. It shouldn't be a big problem if she bullied her.

Thinking of this, Xu Hai imitated the way the boy hugged his roommate. Xu Hai reached out and hugged Tong An.This carefree girl is a bit shorter, only 1.6 meters, but she has a good figure, with a curved front and back, and an unusually soft body.

When she was hugged by Xu Hai, she felt awkward and broke away from him. She glared at him and said, "What are you doing today? You always don't play according to the routine. You didn't do so many moves before."

"How did you feel when I held you in my arms just now?"

"What can it be? I'm just not used to it."

Tong An turned over the silver and turned around to catch up with the two people in front of her, but before doing so, she warned Xu Hai: "Junya is a bit of a germaphobe, don't treat her like this."

"But it's okay. You two have the same instructor and come from the same school. Even if she dislikes you, she will never fall out with you."

Full of confusion, Xu Hai had a meal with them in the cafeteria. After finishing the meal in two or three minutes, he said, "I haven't recovered from my cold yet, so I'm going back to the dormitory to rest. You can eat as much as you want."

After saying that, he ran away. He had to go back and find out what the moral values ​​of this world were, whether it had always been like this, or whether it was caused by some kind of change.

"He's so lively, he looks like he has a cold."

Tong An slandered, and then said: "By the way, Junya, we are moving to a new dormitory tomorrow, can we ask to live together?"

"Follow the arrangements of the college. All this is for the sake of equality. If we ask for it, wouldn't those who don't ask for it suffer a loss?"

"Okay, you're right. But I heard that the new dormitory has four-person rooms, so why not move in? It's because the school has recruited too many doctoral students, so we have to give up the double rooms."

Returning to his dormitory, Xu Hai quickly turned on his computer and clicked on the browser to inquire about the history, customs and other knowledge of his country.

In the end, he really discovered something unusual. It is now 2122 AD. About 100 years ago, human beings suddenly lost their ability to reproduce in the body. Except for the DINK family, the whole world fell into panic.

In 2023, the in vitro cultivation industry will develop rapidly.

But this was only a drop in the bucket. The number of humans around the world was declining rapidly, and this situation continued for the next 20 years.

In 2043, except for the 300 million new babies created by a small number of test tube technologies, there will be no naturally born young people under the age of 20 in the world.

During this time, education collapsed and schools were deserted.House prices in international metropolises, starting at [-] yuan, suddenly fell to the bottom, and countless real estate companies went bankrupt.

And all this is just the beginning. All industries that serve young people are quickly withering like the sun after dusk.

In 2063, the world has entered a highly aging society. There are 1000 million young people, 200 million of whom are minors, and about 50 billion elderly people need to be supported. Retirement is forced to be postponed again and again. By 2065, the retirement age has already been reached. Delayed to 85 years old.

The price of being single and aristocratic and unwilling to lower the quality of life for the sake of children is still coming quietly. Those families who have raised children when they were young can still survive in this bleak era, while most others feel that they are not capable. Instead of raising children, it is better not to have children than to let them come into this world and suffer. Families that are single and entertain themselves until death mostly end up dying of illness in their own huts, and they are not recognized by outsiders until their bodies stink.

When the population dropped rapidly and human civilization began to regress, the machine "Mother" came out. This was an epoch-making machine that opened a new era.

Women cheer for being freed from the shackles of childbearing, and men don’t have to worry about high betrothal gifts.

It’s just that the birth of new things is not always smooth sailing. The birth of a “mother” gives individuals the qualification to have offspring. For this reason, although the population begins to recover, it is on the cusp of another crisis.

Since women have always been responsible for reproduction, their survival ability is slightly lower than that of men. During the 30 years of uncontrolled development, the ratio of men to women has become seriously imbalanced. Looking up in schools of all grades, only a few girls can be seen.