The dark moon hangs in the air, emitting dark red light, and is surrounded by various stars. Any one seems to be brighter than the red moon. In the distance of the sky, there is a huge black star hanging there.

The earth was covered with blue and white frost, and light was reflected under countless starlights in the dark.

Lu Yuan sat in the cab and looked back at Lu Yao: "We are leaving."

Lu Yao had big black eyes, very beautiful, but her skin was as pale as white paper. The girl nodded, nodded, and then Lu Yuan started the engine.

Amid the slight hum of the nuclear fuel engine, an inappropriate and dignified female voice rang between the two.

"The Transportation Commission reminds that the temperature outside is now minus 215 degrees Celsius. Please be careful to keep warm and do not directly expose it to the severe cold..."

Lu Yuan snorted coldly: "Shut up."

The Transportation Commission obediently closed its mouth.

The Transportation Commission is the Transportation Commission. The personal auxiliary optical brain with long roads can be basically understood as artificial intelligence and is regarded as the final crystallization of technology at the end of human history.

I didn't know what Lu Yuan believed in at the beginning, so I chose a Transportation Commission when I named this auxiliary light brain. Now whenever the other party reminded him, Lu Yuan was afraid of being dominated by the traffic police and tickets.

Although there are no traffic police in this world.

Of course there are no tickets.

The garage door slowly opened. It was a garage with a three-story enclosed structure that had not been opened for decades. When the layers of gates were opened, the wind and frost outside penetrated. Lu Yao curiously saw through the car windows and saw that everything she saw quickly formed a thick white frost.

The tracked car slowly drove out of the garage and headed towards the outside world.

It has been twenty years since the long road left this Bay Area nuclear power plant, and the sun has been extinguished for thirty-five years.

No one knows why the sun suddenly goes out. According to observations, the sun should be able to burn for billions of years before it will cause helium flashes, expanding into a red giant, and then collapse into a white dwarf in hundreds of millions of years. Of course, humans do not need to care about what will happen billions of years later.

But no one knows that they have not had billions of years, hundreds of millions of years, or even thousands of years, or decades, only a few days or hours.

After a night, the star body that had shone on the earth for billions of years suddenly went out, and the whole world instantly fell into darkness. From a distance, you can only see the huge dark wreckage of the star dead.

However, darkness is not the most terrifying thing, cold is.

If you don’t eat, you can live for seven days.

If you don’t drink water, you can live for three days.

If you don’t breathe, you can live for five minutes.

But the severe cold of more than minus one hundred degrees Celsius is enough to take your life in a few seconds.

The crawler car was moving forward silently on the dim ground, and the dazzling white lights reflected on the thick snow. Lu Yao was still looking outside curiously by the car window. Even though there was endless snow and darkness outside, Lu Yao still couldn't see enough.

After all, Lu Yao has never left the nuclear power plant.

This is the first time, and it should be the last time.

She was diagnosed with severe leukemia. Originally, such cancer was not considered a terminal illness under the current medical conditions. However, when the world was in an end, Lu Yuan searched all over the entire Bay Area nuclear power plant but found no components for treatment. He could only inform Lu Yao of the truth and asked her what she had last wish.

Lu Yao said that she wanted to go and see the sea.

So Lu Yuan took her to see it.

This is the last promise a father can make to his daughter.

The tracked car was moving slowly on the snow, making a squeaking sound of snow rolling. But Lu Yuan knew that these blue and white ice and snow were not water, but formed by the condensed oxygen and nitrogen in the air. He still remembered that during the years when the sun was extinguished, the whole world had endless blue snow. It was even said that people were mobilizing them to wear protective clothing to shovel the snow outside. As long as they were put indoors and melted, they would be the purest air.

Thinking of this, Lu Yuan couldn't help but smile, but the smile immediately frozen on the corner of his mouth.

Because those who were still alive at the time are now dead.

The Bay Area nuclear power plant is not far from the sea because it requires a lot of water to operate. Many people originally believed that even if the sun goes out and rely on the reserved nuclear fuel, they can live here for at least several generations without worrying about energy exhaustion.

But reality tells them that ice cannot be used as water.

When the entire sea was completely frozen, the nuclear power plant gradually died.

When Lu Yuan thought this way, he suddenly saw the sea in the distance.

Of course, the difference between the sea and the earth is probably only the sea is flatter, because the surface of this frozen planet is covered with countless meters of nitrogen snow.

The tracked car stopped by the sea.

Lu Yuan pushed Lu Yao's wheelchair and walked out of the carriage of the tracked car. Both of them were wearing thick protective suits, and the nuclear battery provided them with enough heat to survive in this cold.

"Is this the sea?" Lu Yao looked at the ice field in front of her, which was also covered with blue snow, and asked with her head turned around.

Lu Yuan nodded.

"Is that the sun?" Lu Yao pointed to the huge dark orb at the end of the sea.

Lu Yuan nodded.

"When Dad was young, was the sun still on, just like what I saw in the movie?"

There is no answer when the road is far away.

He just pursed his lips.

"When my dad was so happy when he was a child, he could see the bright sun."

After saying this, Lu Yao smiled and reached out to hold Lu Yuan's hand.

"Thank you, Dad, for taking me to see this world."

...

...

"Lu Yao!"

Lu Yuan suddenly stood up, and the chair under his feet was pushed to the ground and rubbed with a sharp and sharp sound.

Everyone in the classroom stopped writing and looked at the guy who made noise on such occasions dissatisfied.

"Student, please keep quiet."

The invigilator stood up and whispered to Lu Yuan: "If you make such noise again, I will consider treating you as cheating."

Lu Yuan came to his senses and looked around. He found that the sun was bright outside the window. He was wearing a T-shirt and shorts. He felt a little cold because the air conditioning in the classroom was very high.

There were rows of students sitting around, with the seats stretching very wide, as if they were taking the exam.

take an exam?

Lu Yuan was one head and two big at this moment. He looked at the test paper in front of him and saw that it was written in black and white.

"2125 National College Entrance Examination Paper (National Paper 1)."

"math."

After the school class, he saw the name he wrote.

"The road is long."

College entrance examination?

Is it the college entrance examination now?

Lu Yuan sat down and felt his head buzzing.

The sharp and noisy cicadas outside the window pierced into the eardrums, the windows were bright and the willows were green, and the sun was shining.

Am I back in 2125?

The year I took the college entrance examination?

And that’s the day and moment of the college entrance examination?

The huge change in this moment made Lu Yuan a little unbelievable. He was a little doubtful if it was because he was dreaming of Nan Ke in the math paper of the college entrance examination and dreaming of that dark and desperate future. It was just that the future was so long and clear that Lu Yuan was a little unbelievable.

However, what seems more important now is to complete this exam?

College entrance examination!

Lu Yuan looked up at the top of the classroom and was relieved to find that there was a wall clock in this exam room.

“16:03.”

Lu Yuan couldn't help but look at the exam time on the test paper again.

“Mathematics Exam Time: 15:0017:00.”

I'll wipe it!

Lu Yuan almost cursed.

In other words, I slept for an hour in one go in the college entrance examination?

How big is my heart?

With a nervous attitude, Lu Yuan looked at the first multiple-choice question that he had not filled in a word.

I was at least a senior engineer who had been working as a senior engineer in my dream for decades, a math problem for this high school student...

Lu Yuanhe looked at the first question for three minutes with wide eyes, and finally found in despair that he could not do it at all.

Is the first thing after rebirth to hand in the math college entrance examination paper?

Is life so desperate?

But it is inevitable that the math knowledge in high school has not been reviewed for decades. The last time I was trying to teach Lu Yao myself, but at that time the math problems in junior high school had already stumped myself.

"Do you really want to hand in the blank paper?" Lu Yuan murmured to himself.

When this self-talk said "interaction", the familiar voice suddenly sounded in Lu Yuan's ears.

"The Transportation Commission reminds that the current temperature is 24 degrees Celsius, which is suitable for going out for fun. It is recommended that you and your family bring a tent to sleep outdoors and enjoy the magic and beauty of nature."
Chapter completed!