Bug chapters were posted before, reposted.

That night, Wang Fen took Da Zhuang to the rented house in Bishui Community.

The house was not decorated, and it was just convenient for Wang Fen to arrange a room for Da Zhuang to mutate.

The principle of Da Zhuang's mutation is actually very simple, the core process is to replace Da Zhuang's hematopoietic system with the hematopoietic system of the king of yin beasts, and then use the blood to flow throughout the body, maintain the connection between the whole body and the external environment, and also maintain the function of interconnection between various organs and tissues, and gradually mutate the various organs of Da Zhuang, so that he can mutate and evolve safely, improve the level of life, and resolve the death crisis, the whole process is safe and gentle, and the success rate is very high.

Blood cells include red blood cells, white blood cells, platelets, etc., which perform their own duties and do not have the ability to reproduce themselves, but they all come from the same type of cell - pluripotent stem cells. It is through the proliferation, differentiation and maturation of these cells that they become the various end-blood cells that flow through the blood vessels.

Pluripotent stem cells are produced from bone marrow, so the process of transforming the mutation of Dazhuang is similar to that of bone marrow transplantation for the treatment of leukemia.

Bone marrow transplantation, also known as hematopoietic stem cell transplantation, is the treatment of a series of diseases through intravenous infusion of hematopoietic stem cells and progenitor cells to rebuild the patient's normal hematopoietic and immune system.

In reality, transplanting bone marrow is very complicated, and before transplantation, the patient needs to enter the sterile transplant warehouse for chemotherapy, use a large amount of anti-cancer agents in excess of the lethal dose, and perform radiation irradiation to completely destroy the patient's hematopoietic tissues and cancerous cells. This is called pre-treatment, and because the patient's hematopoietic function is completely destroyed, the transplant must be performed afterwards or it will die.

The donor's bone marrow fluid, known as hematopoietic stem cells, is then injected intravenously. Although it is called a transplant, it is not a surgical procedure. If the transplant is successful, the injected hematopoietic stem cells will grow and produce normal blood in about 2 weeks, and you can be discharged from the hospital about 3 months before and after.

Xinghe said that directly replacing bone marrow was the easiest and most convenient way, and Wang Fen only needed to extract his own bone marrow and transplant it to Da Zhuang. But Wang Fen doesn't have such medical conditions, he is not even a barefoot doctor now, even if he is not afraid of pain, the location of the bone marrow fluid determines that he cannot extract the bone marrow fluid from himself, and things like mutation and evolution are not suitable to go to the hospital. His own power has not been established, and he does not have a medical institution that he fully controls, so he can only keep everything simple, adopt the most stupid soil methods, and at the same time rely on the special abilities of the star core. It also gave him a strong desire to build his own power, not just to make money.

Wang Fen's blood function is very powerful, which can make Xiang Pang go through a hundred battles for three days without falling, but it is only the energy contained in the blood, which cannot be regenerated and is a disposable.

The star core told Wang Fen that although he had embarked on the path of evolution and mutated into the Beastmaster, he was still in the most rudimentary stage, only half of his organs had been mutated, and more than 99% of them were still humans, and he could not achieve blood regeneration.

Wang Fen felt a pain in the egg after hearing this, he really hurt in the egg. His egg is still the size of a duck's egg hanging under his crotch. Although he has been slightly in pain these days, he is used to the pain and does not affect his normal life, but he just walks with his legs a little open, which makes him irritable for a while after being lifted by the star core.

Now, like ordinary people, Wang Fen has a very low content of stem cells and progenitor cells in his self-circulating blood, only a few tenths of the bone marrow fluid, and only stem cells and progenitor cells can self-proliferate and replicate.

Fortunately, medicine is now very developed, and Wang Fen spent 1,000 yuan to inject himself with a mobilization agent through a drug dealer a few days ago. The mobilizer can promote the regeneration of hematopoietic stem cells in the bone marrow and release them from the bone marrow into the human blood, which is ordinary external blood. If you don't inject mobilizers, the amount of hematopoietic stem cells in the body will never meet the requirements of regenerating the blood of Dazhuang.

With the help of mobilizers, Wang Fen can use exchange transfusion to transplant and reduce the risk of mutation. The concentration of stem cells that ordinary people need to continue to inject for several days to achieve, Wang Fen can achieve in one day. But if there is too little blood, it is not enough for Da Zhuang to mutate, and according to the calculation of the star core, at least one-twentieth of Da Zhuang's blood needs to be replaced before it will have a permanent effect on his body. And the more blood, the better the mutation effect and the higher the safety.

For the sake of Da Zhuang's safety, Wang Fen said without hesitation that he would do his best to exchange blood.

After the star core calculated again, it was determined that changing one-tenth of Da Zhuang's blood could ensure the safety of the mutation, and at the same time, it would not bring too much pressure to Wang Fen's body.

But Da Zhuang's weight is too heavy, only one-tenth for him, and one-third of Wang Fen's blood. In general, if the blood loss of a healthy person does not exceed 10% of the total blood volume, the impact on the body is not too large. When more than 20% of the total blood volume is lost at a time, it has serious health implications, and when it exceeds 30% of the total blood volume, it is life-threatening. Changing so much blood at once, although Wang Fen will not hang, but the evolution essence and physical strength that he has accumulated for so long will lose a lot, and he will have to raise it for at least another half a month to recover.

Wang Fen can also think about it, he is already so powerful, he feels invincible with his bare hands on the earth, and it is acceptable to be a little weaker, otherwise the invincible life is too lonely.

"Brother, is it here?" Da Zhuang looked around the house all the way, as a construction worker, he knew how much such a house would cost, and finally under the leadership of Wang Fen, he came to the only room in the whole house with a door.

Wang Fen nodded, then opened the door, a strong smell of vinegar rushed out, and after a while, Da Zhuang stuck his head in, and found that the room was not big, and there was no window, it should be a storage room. The room was now covered with plastic wrap all around the roof, the floor, and in the corner was an induction cooker with white vinegar boiling on it, and the smell of vinegar was pouring out of the pot, and beyond that, there was only an iron bed.

"Da Zhuang, you have also seen it, it is really a local method to make you lose weight, and the specific process brother can't tell you, do you really want to do it?" After entering the room, pointing to the simple facilities in the room, Wang Fen finally said solemnly to Da Zhuang, he wants to give Da Zhuang the last chance to choose, maybe in a few years he will be more powerful, and there will be a better way to save Da Zhuang.

"I believe in my brother!" Da Zhuang smiled innocently, no longer looking at the clean room wrapped in plastic wrap by Wang Fen, plus the clean room where a pot of white vinegar was boiled to sterilize.

"Come, good brother, lie down on this bed. Wang Fen said emotionally, Da Zhuang's unconditional trust made him extremely moved, for such a brother, what about losing some evolution essence.

Da Zhuang climbed onto the iron bed with difficulty and lay down, and the legs of the iron bed made a creaking sound, which seemed to be about to break at any time, making Da Zhuang so nervous on the bed that he didn't dare to move.

"Just relax and get some sleep. Wang Fen said softly to Da Zhuang, and then gently pressed his hands on his carotid artery, and Da Zhuang fell into a coma and entered a state of general anesthesia that could be at the mercy of Wang Fen.

Wang Fen took out a family medical kit from under the bed, took out a disposable syringe, skillfully drew a tube of blood for Da Zhuang, and then took out the star core and said, "It's okay to drop it on you?"

"Well, a little drop is fine, remember to wear a condom. Star Core said in Wang Fen's mind.

"Yes, it's annoying. Wang Fen reluctantly took out a specially bought ultra-thin dynamic sleeve from his pocket and stuffed the star core into it, and then carefully dripped the blood in the syringe on the sleeve tightly wrapped around the surface of the star core.

This process is an experiment in the properties of the blood. Before the exchange of transfusion, it is necessary to destroy Dazhuang's original hematopoietic system, those chemotherapy drugs are high and difficult to buy, and there are great side effects, Wang Fen plans to replace them with electric energy.

Electrical energy can speed up metabolism, activate Wang Fen's cells, and also cause cells to die.

Now the experiment is to find a special form of electrical energy that can kill all the hematopoietic cells in Da Zhuang's body without harming other normal cells.

The experimental tool is only the star core, but it is not willing to get blood because of its cleanliness, so there is such a thing as wearing a condom. In order to improve the accuracy of the analysis, Wang Fen still remembers the strange expression on his face when he went to the supermarket to buy a set, and the shopping guide heard him ask which one was the thinnest set.

As soon as the blood drops on the core, the core immediately emits a faint stream of electrical energy, constantly adjusting the frequency and method of electrical energy to ensure that it only kills the hematopoietic cells and does not endanger other cells.

After only three drops, the star core was in Wang Fen's mind.

"So fast. Wang Fen frowned as he looked at the blood in the syringe and half a tube.

"The first drop will be fine, do you draw so much blood. Xing Core said flatly, as if he didn't understand Wang Fen's behavior.

"Can you start the next step?" Wang Fen took a deep breath, now is the critical period for the evolution of Da Zhuang's mutation, and he still needs the star core, he endured this breath first.

"You're about to destroy the hematopoietic system, are you ready? Once you start, there's no turning back. Star Core said in Wang Fen's mind.

"Let's start!" Wang Fen calmly wrapped his arms around the wires, held the star core tightly with both hands, and laid it flat on Da Zhuang's chest.

What if he can't turn back, he can't turn back for a long time, and he doesn't want to turn back.

Wang Fen watched in silence as he lay quietly on the iron bed, and he had been stripped of all by him.

Now, they are brothers.

Soon, they are one.

Since then, Wang Fen's evolutionary path is no longer alone.

..