"There are a few things you need to know before we get to work on the robotic arm." Amu must definitely tell Kang Ming about these situations in the city recently.

"What's the matter?" Of course, Kang Ming didn't know anything, and he had no idea about his current special identity.

"After you had an accident, Zhao Shi'an arrested Du Keyue, and then I didn't know that the big news that Zhao Shi'an had a relationship with Kang Man, the lord of Magic City, and gave birth to a child......"

Amu told Kang Ming about all the things in the recent science metropolis, and Kang Ming fell into deep thought after listening to it, and said after thinking for a while: "So, I am now a key person?" ”

"Yes, you must not let anyone know that you are back." Amu said seriously.

"So what do I do? Can't even get out of the door? Kang Ming was a little helpless.

"Amu~~" At this time, the illusory figure of the book spirit suddenly burst out of Kang Ming's arms, and called Amu delicately.

"Book Spirit~" Amu saw Book Spirit, his eyes were straight, and he was surprised and happy, "Are you okay?" ”

"I haven't fully recovered yet, my current spirit body is only a materialization, but it is not yet materialized." As she spoke, she waved her hand and went straight through Amu's head.

Amu was taken aback, his sad expression flashed, and then he said very objectively: "It's okay, it's okay, it's going to get better and better!" ”

"Did you miss me?" The spirit really likes to tease Amu.

"Yes!" Amu said categorically.

"Alas, I really want to eat hot pot!" Said as he floated in the air.

"I want to eat it too." Kang Ming was left out in the cold by this person, and only when he heard the hot pot did he have a chance to interject.

"No, you can't go out." Amu very decisively rejected Kangming's request.

"What about my robotic arm?" Kang Ming asked.

Amu thought for a while, pointed to the third generation of Heiba next to him and said: "Your severed arm at that time is nothing more than to take it back, but Heiba's arm is still there, I will go to the Scientific Research Guild tomorrow to find some materials, and then ask the prosthetic department, come back and I will help you make a robotic arm, you stay at home well." ”

"And when can I get out?" Kang Ming asked with a harmless and innocent expression.

"I don't know." Amu back.

"Ugh." Kang Ming sighed, full of helplessness.

The next day, according to his predetermined plan, Amu first asked for some information on the robotic arm from the prosthetic department of the Scientific Research Guild, and then collected a lot of materials for the data, and then began to make and test it in his own research room.

But the robotic arm involves a lot of medical knowledge, and Amu has been studying the production and design of mecha machinery, and he can be said to be a layman in medical problems, so the production progress of the robotic arm is slow.

After many days, Amu devoted himself to studying the robotic arm in the research room every day, and Kang Ming was bored at home every day, in order to avoid being discovered, he closed the curtains of the bright floor-to-ceiling windows, and the lights could only be turned on in the house during the day.

"Soul of the Book, will you teach me something?" Cumming is really boring.

"What do you want to learn?" The Book Spirit asked.

"For example, every time you move the spirit, I think it's very practical, teach me!" Kang Ming said expectantly.

"That's an ability unique to our spirits, you're human, you can't use it." The spirit explained.

"Then continue to teach me how to improve the ability of the red pupil." Kang Ming said disappointedly.

"The ability of the red pupil must be improved step by step in the battle, not overnight."

"Ouch, so we've got to do something, right?! Staying like this every day is going to kill people! "Kang Ming is already very helpless.

"Why don't I teach you how to release energy?" The book spirit floated in front of Kang Ming and said.

"Energy release?" Kang Ming got up smartly, and looked at the book spirit with bright eyes.

"Yes, it is a means of releasing the absorbed energy out of the body, which can be attacked, and it can also be used according to its own needs." The spirit said.

"Okay, teach me." Kang Ming said as if he was grabbing the book spirit.

"What's the hurry, you learn the first step first." The spirit said in disgust, "Release the energy out of the body." ”

"How?" Kang really asked the book spirit tomorrow.

"Feel before you control." Zhu Ling said flatly, and then floated away, with his hands behind his head, lying leisurely and no longer looking at Kang Ming.

"Hey! Did these six words send me away? ”

"Hmm~" Zhu Ling closed his eyes and said calmly, "You try it yourself first." ”

"It's perfunctory." Kang understood, and said with a glance.

Complaining is complaining, Kang Ming still obediently did it seriously according to the method of the canon.

"Feel it first." Kang Ming repeated silently in his heart.

Calm down, the magical energy in his body has actually become so rich, if the energy in Kang Ming's body was only a cup before, then now the energy in his body at least has a pool, this huge expression makes Kang Ming very excited.

"I don't believe that I can't release so much energy."

Cumming began to try to mobilize the magical energy in his body, and he closed his eyes tightly, using all his mental power to control it.

But the results were not optimistic, and the rich energy in the body did not change in the slightest, as if these energies were self-aware, completely ignoring Kang Ming's control.

Cumming tried again and again, but the energy never showed any signs of moving.

"No, I can feel it. But I can't control it at all. "Cumming can only ask for help.

"You don't have enough energy in your body right now to let you manipulate it casually." Zhu Ling opened his eyes and examined Kang Ming carefully, and then said slowly.

"Wouldn't it? I have many, many times more energy in my body than before! Kang Ming said in surprise.

"There are three types of energy in the human body. The first is the energy that anyone has in the body, this kind of energy is called real energy, which belongs to the energy that maintains the operation of the body and cannot be manipulated; The second is the additional energy absorbed, the energy that can be used by people through training, this kind of energy is called refining energy, and your body is only real energy now, but it is slightly more than the actual energy in the ordinary human body. The spirit explained.

"What about the third one?" Kang Ming asked curiously.

"The third energy is dangerous, it's better if you know less." "What you have to do now is to separate the real energy in your body, keep part of it in a state of real energy, and convert part of it into refining energy, so that you can learn to use magical ability. ”

The spirit said, "Don't be in a hurry in this process, if there is a problem with the separation of energy, your life will be in danger, and I will not be able to save you at that time." ”

"Well, I see." Now that he knows what he knows about energy, he confidently starts trying again.

But the reality is so cruel, even if Kang Ming knows what to do, but he has no brute force and nowhere to do it, and after trying for a long time, there is still no change in the actual energy in his body.

"I can't." Kang Ming, who was still full of confidence just now, wilted like a frosted eggplant in the blink of an eye.

"If you can really listen to it, then you are a genius like the first family master." The book spirit said calmly.

"Tell me about the first head of the family." Kang Ming said with a wink.

"It was an unusually bloody piece of history." Zhu Ling said solemnly, "In any era, war is the most cruel, I hope you will never encounter war in your life." ”

"What war?" Kang Ming asked curiously.

"The First War Between Science and Magic."

"How many wars have broken out between the City of Science and the Magic City?"

"Twice."

"There shouldn't be a third time, right?" Cumming said uncertainly.

"Who said that war will only exist between science and magic, maybe science and magic will break out their own civil war, after all, these two big city-states have been at peace for so long, there is an old saying, if you divide for a long time, you must be together, and if you are united for a long time, you must be divided for a long time." The spirit said.

At this time, neither the spirit nor Kang Ming knew that these words had really come true in the near future, and civil wars had broken out between the Science City and the Magic City for various reasons, and Kang Ming had been in the middle of the whirlpool of these two wars.

After another half a month, Amu finally returned to Sunrise Building with the finished robotic arm.

"Wow!" When Kang Ming saw this mechanical arm, his eyes lit up and he almost pounced on it.

"Don't worry, the conditions at home are limited, I brought back all the necessary instruments and equipment, but it's still not enough, you lie on the sofa and listen to my command." Amu said.

Kang Ming obediently lay on the sofa, and one side of his broken arm was fixed by the instrument that Amu brought back.

"I say force, you push hard." Amu said to Kang Ming with a medical marker in his hand.

"My arms are gone, how can I exert myself?" Kang Ming was a little embarrassed.

"The arm is gone, but the nerves at the base of your shoulders are still there, and I want to know where all your nerves are." Amu said at a glance, and it seems that the recent research has not been in vain.

Kang Ming nodded as if he didn't understand.

"Thumbs up." Amu stared at Kang Ming's severed arm and said.

Kang Ming frowned, and followed Amu's instructions with a little difficulty, and Amu quickly marked the broken arm.

"Move your index finger." Amu gave another order.

In this way, marking one finger by one, Kang Ming made some arm movements, such as clenching his fists, exerting force, etc., the whole process took more than half an hour, and Amu was already sweating.

"After the marking, I now have to do nerve docking, in order to ensure the activity of the nerves, I will not inject anesthetic, it hurts, you have to endure it." Amu wiped a handful of sweat and said.

"Well, come on!" Kang Ming said resolutely.

This pain is negligible compared to being a one-armed hero for a lifetime.

The process of connecting the nerves was very long, and Kang Ming almost fainted in pain, and Amu's white gloves were already full of Kang Ming's blood.

It took two hours for the connection to be complete.

In the final step, the robotic arm is installed.

The rhodium alloy robotic arm is very heavy, and Amu has to find a way to lift and install it by himself, and he also needs to pay attention to the consistency of the connection with the body, and each step requires a lot of physical strength and patience.

This operation was a very difficult test for both Kang Ming and Amu.

In the end, the robotic arm was successfully installed.