Li Yun is a leukemia patient and also an autistic genius with Asperger's syndrome.

He lost his parents at a young age and was raised by his elder sister. Although he had never been to school, thanks to the information age, he taught himself primary, middle and high school courses by relying on a large number of online courses and knowledge on the Internet.

The sister accidentally learned about her brother's academic level and was overjoyed. She immediately used her connections to find a teacher.

The teacher's child also has Asperger's syndrome. Upon hearing this, he suspected that Li Yun was an autistic genius, so he brought a set of test papers and watched him finish the test with his own eyes.

After marking the papers, the teacher was surprised to find that Li Yun was indeed a genius. Although his scores in English and Chinese were a little low, he got full marks in mathematics, physics and chemistry. The teacher communicated with Li Yun's sister and decided to let the child go to high school for one year and then use special channels to secure a place for him in the college entrance examination.

Just when everything was going in a better direction, something unexpected happened.

When Li Yun's sister and brother-in-law were celebrating for her, Li Yun noticed something wrong with her brother-in-law and discovered that he seemed to have cheated on her. Her sister learned the truth from Li Yun and angrily chose to divorce him, but her brother-in-law was unwilling.

During an argument, the brother-in-law angrily stabbed his sister in the neck with the fruit knife in his hand.

Afterwards, driven by fear, Li Yun's sister was dismembered and hidden by her husband.

But in today's era of police sky-eye coverage, all crimes of murder cannot escape detection.

Soon, Li Yun's brother-in-law was arrested and all his crimes were made public.

Before going to court, Li Yun had remained as calm as before, as if his sister's death had no effect on him. Many people felt that his sister had raised an ungrateful person and expressed disgust and contempt for his calm reaction.

It was not until two months later that the relatives accidentally learned the news that the silent boy whom they despised had actually killed the enemy who murdered his sister the day before the trial, and then jumped off the building to commit suicide.

It is said that he died with a smile on his face...

"Bang--"

The body falling from a high altitude splattered a large amount of blood like a blood bag.

This was a nightmare from his previous life, which woke Li Yun up suddenly.

When he sat up, Li Yun frowned, and all the bones in his body seemed to still be aching slightly.

“Boom boom boom—”

There was a rhythmic knock on the door. Li Yun grabbed the pistol under the pillow and whispered, "Come in."

A slender maid came in with a tray, glanced at Li Yun's sweat-soaked shirt, then placed the tray on the table in the guest room and said with a smile, "Mr. Li, please have dinner."

Li Yun sat up, looked at her and asked, "Where is your young master?"

The maid chuckled and said, "The young master is in the study. When you finish your meal, you can go to the study to see him."

Li Yun nodded: "I understand, you go down first."

The maid pinched her skirt, bowed with a smile, then turned and left.

Li Yun stared at her back calmly, and only after she left did he release his right hand that was holding the gun under the quilt.

"I let my guard down a little too much..."

Li Yun sat at the table, eating his meal, frowning and reflecting on his actions.

The world is dangerous and people's hearts are unpredictable. Even couples who have been married for many years can draw their swords against each other, let alone a fellow villager.

Even if they were both time travelers, it didn't mean that the other party was trustworthy. Although he had nowhere else to turn to and found Zuo Yu, he really shouldn't have followed the other party to the other party's base camp, and he really shouldn't have fallen asleep in bed without any precautions...

Li Yun reflected on himself and at the same time quickened his eating pace.

After finishing the meal, Li Yun put the bowl and chopsticks back to their original places until they were exactly in place, then stood up and put on his coat.

Not long after, Li Yun came to the study, pulled out a chair, sat opposite Lin Zhongtian, and looked at him calmly.

Lin Zhongtian smiled and asked, "How was your rest?"

"It's OK. I haven't had a rest like this in a long time."

"That's good."

Lin Zhongtian sat up, playing with a gold coin in his hand, and looked at Li Yun with interest. He found that although his sitting posture seemed relaxed, his arms were actually kept at the most suitable angle for drawing the gun.

As long as an abnormal situation occurs, he can pull out the pistol in his arms as quickly as possible.

"So cautious?"

Lin Zhongtian said jokingly with a smile.

Li Yun said calmly, "I can't help it. This is your territory. I am willing to come here with you. It is the greatest trust you have. You can't let me lose my last means of self-protection, right?"

"……Reasonable."

Lin Zhongtian nodded, then pulled his office chair closer and came closer with a curious look on his face.

"Teacher Li, I'm very curious about your experience. Can you tell me about it?"

"There's nothing much to say, I just traveled through time in a daze..."

“Really?” Lin Zhongtian curled his lips and looked at the calm face and said, “I don’t think so. With your cautious personality, you must have a past that you can’t bear to look back on… Well, the past is a thing of the past, so I won’t ask about it. But you should tell me about this life, otherwise how can I help you!”

"I see."

Li Yun nodded and said, "In this life, I am a killer, engaged in the lowest level of assassination activities. I can only get 2,000 US dollars in remuneration from the middleman for each order, and most of my targets are civilians..."

As Li Yun slowly spoke, Lin Zhongtian gradually understood the other party's situation.

Unlike Zhao Lihe, Li Yun's soul traveled through time and space, and he had no memory of his previous life. He only retained some killing skills and muscle memory. As soon as he opened his eyes, he found himself wandering on the streets of Los Angeles.

A homeless man was trying to steal his clothes, but he accidentally killed him when he woke up.

This scene was seen by a killer agent who was passing by. Out of appreciation and commercial value, the killer agent took him back to his residence, and thus began Li Yun's career as a killer.

In this world full of killers, not only the powerful and wealthy need killers, but the middle class and below also have a need for assassination.

Li Yun is a low-level killer serving this group of people. Although his pay is not high, he has a large number of orders and personal freedom. People like Li Yun who have special skills but still work in this field have a certain degree of autonomy in their choices.

When faced with some tasks that he doesn't want to take, Li Yun can choose to refuse.

The killer agent didn't want to lose this quick way to make money, so he could only let it go.

As long as the request is not too excessive, I will generally try my best to satisfy him.

In this way, Li Yun lived in Los Angeles as a killer for a year.

Until one day a month ago, when Li Yun was collecting the task reward, he suddenly received a gold coin and learned a series of truths about the Continental Hotel and the high table from the intermediary.