One summer many years ago, on a desert island belonging to the Rothschild family in the United States.

There is a secret base on this desert island, which is not a research base or a military base, but under the guise of a military base, it trains future killers for the Rothschilds.

A transport helicopter is heading towards this deserted island.

The transport helicopter was crowded with children as young as four or five years old and as old as seven or eight years old.

A fair-looking, blonde-haired Western teenager was shaking with his legs in his arms, tears rolling in his eyes, he wanted to cry, but he didn't dare to cry, because if he did...... will be beaten.

"Zero, what's wrong with you?" At this time, a seven-year-old blonde girl asked a five-year-old Western teenager.

That's right, this Western teenager is zero, they don't have a name, they had a name before, but now they don't, there are clear rules here, you can't call your name, whoever shouts your name will be shot directly! Can you shout...... There are only code names, the code name of the Western teenager is zero, and the code name of the little girl is one.

Zero didn't speak, silent, as if he hadn't heard One's words.

"Don't be afraid, I don't know where we're going, but when we get there, I'll protect you." Yiyi smiled and patted Zero on the shoulder.

Zero still didn't speak, and suddenly kissed Zero on the forehead, and said: "Zero, you are so beautiful, more beautiful than women, if you grow up, Zero will definitely make many women jealous, right?" ”

Zero has been silent, but One still takes the trouble to talk to Zero! Although Zero has never spoken, the two can be regarded as acquaintances.

After arriving at the base, the person in charge of the area did not directly tell the group of children what they were here for, except for the daily training, Zero and One and the group of children quickly became familiar with each other during the break.

"Isn't that right?" Said an instructor wearing a black hood.

"Don't pretend to be merciful, it's a Rothschild's business, and if we mess up, we'll all die! For the sake of this effect, Boos first familiarized them, established friendships, and then ......" the other instructor's words were not finished, but the meaning was understood by both of them.

A month passed quickly, the instructor and the group of children said the rules, and one of them gave them a dagger.

At that time, many children were scared and cried, and Zero also cried.

He patted Zero's shoulder, smiled and said, "Don't cry, I'll protect you." ”

In the first battle, 3,000 people eliminated 1,500 people, and the fight lasted for two days and one night, and finally ...... Both One and Zero survived! Although he survived, Zero felt like he was about to collapse.

In a word, it is very true, women are born to mature earlier than men, and this is still practical in children's groups! One was originally two years older than Zero, so ...... She's mature, just as mature as an adult.

Because of one's protection and zero own efforts, the two of them kept surviving and killing others.

"Those two kids are good." The instructors all nodded secretly when they watched this fight.

"They also have a good relationship, but it's a pity...... Only one person will survive. "The instructors know the ultimate rule of this game, although there are more than 30,000 children, only one person will survive in the end, but ...... Now this rule, they haven't told this group of kids yet.

Soon, a year passed, and Zero grew up reads();.

"Can you tell me why you were crying at that time?" During the break, Ichichi asked Zero about what happened on the helicopter when she first came here.

"I miss my family." Zero bowed his head and said.

"Family? Aren't you an orphan? He was stunned for a moment and asked.

"No, I was separated from my family when I was very young, and I haven't been in touch with my family, so I was temporarily sent to an orphanage." Zero said.

"How long?" One continued to ask.

"It's been four years." Zero said.

"Can you remember when you were two years old?" One was surprised.

"Hmm." Zero nodded and said, "I remember a lot of things, I still remember my family in Washington, but ...... When the police helped me look for it, I couldn't find it. ”

"Zero is amazing." He smiled, then glanced at his chest and frowned because ...... She has already begun to develop.

Time passed day by day, and two years later, the last thing Zero wanted to see happened, and he and Yi ...... Arranged by the instructors to face off, a duel of life and death!

"You've said it before, right? If the two of us face each other, neither of us can let anyone. He smiled and said.

"But......" Zero's eyes became sad.

"Zero, do you still want to see your family?" One said softly.

"Yes." Zero nodded, his eyes cold.

The zero-and-one showdown didn't last too long, and the ending was ...... It was a dagger pierced through the heart by Zero, and at the moment when the dagger pierced the heart, Zero shed tears, and the eyes that looked at Zero were very soft, as if conveying a sentence: Don't cry, I will protect you!

Although the "No. 1 She ......" duel is over, the instructors have seen something.

One's ability is stronger than zero, and these instructors know very well that if they fight to the death, one can kill zero, but ...... And so it turned out!

Time passed year by year, and the next thing, without any accidents, the death of one, made Zero's heart completely sealed! When he died before, he didn't know that he did it on purpose, but as he grew older, he understood! One fulfilled her promise with her own life, and she ...... Will protect him!

In the following years, Zero kills became more and more precise, until after killing the last man, he also left the place.

Before leaving, the instructor handed over One's relics to Zero, and the relics didn't have much of anything, only some clothes that One had worn before, and a letter.

The letter reads:

When you read this letter, it should be the time when you are about to leave here, and at this time, you should have understood what happened many years ago, after all, Zero is so smart.

Actually, the first time I saw you, I wanted to protect you, even if it was with my life! Because I once had a younger brother, he is in heaven now, he is very similar to you, and he is so crying, many people say to me, people who cry are angels, and Zero should also be angels, right?

Also, don't be sad, don't feel guilty, because I walked with a smile and I can go to heaven to see my family and my brother! Sometimes, being alive is the most tiring! This desert island should not belong to you, your world should be wider, and you must find your family!

In the end, you must live, Zero! Remember, don't cry, I'll always protect you.

--Alice.