On December 24, 2048, it snowed heavily in Shanghai.

As a southern city, Shanghai rarely snows, and December is far from the time it should snow, but the earth's climate is gradually changing after the destruction of human civilization, and the most significant feature is that the climate is getting colder and colder, and the snow season is advancing every year.

Lu Xun looked around the academy, and finally found Lemon sitting on the roof of the main building, she didn't know how long she had been sitting, shrunk into a ball slightly, her hair and shoulders were covered with fine snowflakes.

Lu Xun sat down and took a hot breath into his hands.

Looking down, there has been a thin layer of white in the academy, faintly revealing the black cement floor, lonely footprints and ruts running through the snow, few people will hang out at this time, the academy is actually a group of people who are afraid of the cold, and they prefer to cover the quilt and shrink indoors on snowy days.

Today is Christmas Eve, and the storm has taken out a few apples to distribute to everyone, and the apples, which are not much bigger than winter dates, were cut into dozens by Reich, each of which is a thin sheet like paper, and the light can be passed through the lamp.

At this time, the colonel led everyone to dinner, and on the table was a small Christmas tree, and on the branches hung sparkling trinkets. Christmas Eve is a very important day for Westerners, and tomorrow is Christmas, and Lu Xun is indifferent to this kind of gathering full of Western rituals, so he sneaks out.

Lemon sat on the rooftop leaning against the railing, not turning her head to look at Lu Xun, she stared at the ruins in the far distance, the snow-covered city emitting a faint glow in the darkness.

"Are you hungry?" Lu Xun unzipped his coat and took out bread from his arms and stuffed it into Lemon's hand, "You didn't eat anything tonight." ”

The girl was stunned for a moment, dare to love this guy who sneaked out halfway just to bring food to herself?

Lemon lowered her head and took a bite and sniffed, "It's cold, it's not delicious." ”

But she finished the bread in two bites, and she was indeed hungry.

Lu Xun took out another apple from his pocket, and Lemon's eyes lit up.

"The storm quietly stuffed me, and I have such an apple, that even the Colonel has only been given a small bit of apple skin." Lu Xun handed the apple to the lemon.

Lemon pulled out the knife with a "pout", so fast that Lu Xun didn't have time to react, the latter only saw the afterimage flash in front of his eyes, the girl put the knife into the sheath, and the apple in the young man's hand was split in half in the center.

"You're half and I'm half." Lemon said.

"Isn't it cold to sit here?" Lu Xun took a bite of the apple, and he noticed that the lemon had no clothes at all, and the knuckles of the fingers holding the handle of the knife were red from the cold.

"It's a little bit more comfortable." Lemon shook her head.

"Feel better?"

Lemon pointed to his heart, "People like us are like being burned by fire all the time, and it will be more comfortable to blow a cold wind." ”

Lu Xun nodded silently.

Lemon looked down at the apple in his hand and suddenly whispered, "The last time I ate an apple, I was only six years old."

"Six?" Lu Xun asked, "Where were you when you were six years old?" ”

"I don't know." Lemon shook her head, "I don't remember anything before I was six...... I just remember it was a big, big place, with a lot of people, a lot of kids. ”

"And the doctors and nurses." Lemon went on to say, "The snow there is heavier than here, so big and big that it reaches people's knees......

Suddenly, melodious music floated up from the main building underfoot.

Lemon was stunned for a moment, and gently sang along: "Christmas Eve, Christmas Eve, all the silence, shining gold."

"Our Lady and Child are lovely and serene, quiet and gentle in sleep, sleeping quietly in heaven, sleeping quietly in heaven......"

"Can you sing this song?" Lu Xun knows this song, the traditional Western holiday song "Christmas Eve", a song that almost everyone can sing.

Lemon came back to her senses and turned her head to look at Lu Xun, her eyes a little dazed and a little dazed.

"Before...... Someone taught me to sing this song. "He gave me an apple and taught me to sing the song." ”

"But I can't remember who he is......" Lemon muttered, "his face was so drowning in sunlight that I couldn't see it clearly." ”

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"The director's medicine is almost ready." Lu Xun said, "The first mouse experiment has been completed today. ”

"Success?" Lemon asked faintly.

Lu Xun was silent for a few seconds, "The rat has lived five minutes longer than before. ”

Lemon nodded, not saying anything.

"But don't worry, according to this progress, the buffer will be made within this year." Lu Xun said, "The director said that your situation can be controlled, and the buffer can inhibit the spread of the doomsday virus in your body." ”

Lemon was a little absent-minded, obviously not listening to Lu Xun, she looked at the snowflakes in the sky, not knowing what she was thinking.

She reached out and caught a snowflake with her fingertips, and the ice crystals lingered on her fingertips for a long time, showing no signs of melting.

Lu Xun was taken aback, reached out and grabbed the girl's fingers, only to find that Lemon's hand was as cold as ice, and it was almost piercing the moment it touched it.

"How long has it been like this?" Lu Xun's eyes widened.

Lemon slowly withdrew her hand, "Don't worry, I've always been like this." ”

"Since a long, long time ago, my hands have not had temperature." The girl said, "Because this is no longer a pair of hands of a living person, the tissues of the body infected by the doomsday virus are no different from those of a dead person." ”

"Then my arm and body will gradually lose temperature, and this time will not be too long, it may be three years, or it may be tomorrow." Lemon turned his head to look at Lu Xun, and his tone was very serious, "Am I scary?" ”

The two looked at each other, Lu Xun rolled his eyes and looked at the sky, and reached out to help the girl dust off the snowflakes on her head and shoulders.

"The cat demon is much scarier than you, okay?" The young man bared his teeth and smiled, and the lemon was stunned.

"It's good to have no body temperature, and when it's hot in summer, it's cool to hold in your arms, just like holding an ice pack." Lu Xun said.

Lemon thought for a few seconds before realizing that the kid was taking advantage of herself.

But she wasn't angry.

"Bell-" The two of them were stunned, and Lu Xun realized that twelve o'clock had arrived, and it had already reached eleven o'clock when he came out.

December 25th.

Lu Xun patted his ass and got up, shaking off the snow on his body, and the snowflakes fell on his black hair like a chicken nest, which looked like dandruff.

He stood on the roof of the building and shouted "Happy-Christmas!" to the snowy city.

Lemon sat in the snow and watched the young man's unbridled laughter, and suddenly felt that this scene seemed familiar.

Was there a time when you sneaked out on a snowy Christmas Eve like you did tonight, shouting "hello" to the whole city and the whole world?

Melodious music wafted out of the windows of the main building, and people hugged and blessed each other in the warm and bright lights.

"Christmas Eve, Christmas Eve, glittering, how brilliant."

"The shepherd boy looked into the distance, and the angels sang in unison."

"Christ the Redeemer descended from heaven, Christ the Redeemer descended from heaven."

"Our Lady and Child are lovely and serene, quiet and gentle in sleep, sleeping quietly in heaven, sleeping quietly in heaven......"