A month later, in the dim stone room, several medical equipment flashed continuously, and white wires were messily placed on the floor, and finally extended to the young figure on the operating table, and the bright shadowless lamp illuminated the surroundings of the operating table.

"It's a matter of success or failure. Amber lay quietly on the operating table, took a deep breath, stretched out her right palm, and moved, and a trace of blue chakra appeared on her index finger.

After a pause, Amber gritted her teeth, stared at the mirror above the operating table, and gently swiped her finger across her left chest.

Amber's fingers were like sharp scalpels, and the delicate skin silently cracked, revealing the white ribs inside, and the cut capillaries temporarily stopped bleeding under Amber's chakra control.

"Boom...... Amber gritted her teeth, her index finger swiping continuously, avoiding the thicker blood vessels, separating the muscles and soft tissues between the ribs little by little, a strong stinging pain filled the nerves, and fine beads of sweat oozed from the pores of her forehead.

Even though the whole body trembled slightly because of the pain, Amber's right hand was always steadily slicing back and forth on the incision, and this control was also thanks to the previous trap training, Amber, who was often injured, gradually overcame the stiffness and trembling caused by the pain, and now Amber can steadily cut the opponent's throat with the kunai in his hand even if he is cut by the enemy's knife.

After cutting the soft tissue between the ribs, the corner of Amber's heart was exposed, and the bright red heart was beating vigorously in the chest, full of life.

Releasing his right hand, Amber didn't care about anything else, and quickly picked up the scroll prepared beside him, and unfolded the scroll, revealing the curse marks on the scroll, and the dense seals almost occupied the scroll, forming a spider web-like pattern. Aiming the center of the pattern at the heart exposed on her chest, Amber struggled to reach out her hands and begin to seal.

There were a total of twelve mudras, and when the amber finished the last seal, the seal on the scroll immediately emitted a blood-red light, and then the glowing seal surfaced on the scroll, quickly converging to the center, turning into a hexagonal spell seal.

Amber clasped her palms together, her eyes froze, and the blood-red hexagonal curse mark instantly rushed into the wound and was imprinted on Amber's heart.

"Ahem!" The moment the curse mark fell on her heart, Amber only felt her heart twitch violently, and her whole body twitched, and then a cold breath emanated from the curse mark, quickly spreading to every corner of her body, and gradually disappeared.

Amber breathed a sigh of relief, quickly removed the scroll, and pressed her right hand on the wound on her left chest, and the green medical chakra quickly covered the wound, recovering little by little. Five minutes later, Amber removed her right hand, and the wound, which was ten centimeters long, was gone, leaving only a faint trace of the wound that had been sustained here.

The first step of the flesh adhesion technique was completed, and Amber's face became more solemn, and the next step was to use a special secret method to temporarily open the death door among the eight doors.

There are a total of eight doors in the human body, of which the first seven are at the key points of the meridians, restricting the flow of body energy, and the most special of them is the last door of death, because the door of death is located in the heart, which is a door connecting the meridians of the human body and the heart. If the door of death is opened, the chakra in the meridians will enter the heart, thus connecting the body's blood circulation system, which can greatly improve the body's function.

After all, the human meridians are much simpler than the blood circulation system, and it is impossible to act on a large number of chakras on the body cells through the meridians, but the blood circulation system is different, almost everywhere in the body, and the capillaries are even more dense and unimaginable.

But the risk of opening the door of death is also extremely great, Akai's father is the first person in Amber's impression to open the door of death, in order to protect his son Akai, his father's terrifying physical technique instantly surpassed the shadow level, and in just a few seconds, the fog hidden seven swords of the famous ninja world were all extinct, but the price was also terrifying, and the huge amount of chakra that lifted the restriction of the eight doors poured into every cell, causing the cells of the whole body to collapse, and finally turned into ashes.

Of course, Amber only needs to open the eighth door of death, and the first seven doors will not be opened, although there are risks, but there are seven doors that limit the flow of chakra, and it will not cause the cells to collapse in a short period of time, but the problem is also here, once the door of death is opened, it can theoretically be closed, but it is also written in the medical book that no one has ever succeeded. If Amber can't close the door to death, the cells will collapse under strong stress for a long time.

Without a trace of hesitation, Amber stretched out his thumb and put it on the door of death under his heart, and accurately controlled the chakra to rush towards the door of death through the touch, and the curse mark planted on the heart was also activated at the same time, echoing the chakra of amber, and the door of death was instantly rushed open under the action of both sides, and the blue chakra instantly rushed through the door of death, some of which were injected into the curse mark, and the others flowed all over the body along the blood.

"Ahem!" Amber coughed up a mouthful of blood, the cells in her body were impacted, and they seemed to be burning, and a powerful force filled her body, and the monitoring instrument next to her immediately lit up with a red light, and all kinds of data appeared abnormally high.

Gractuating onto the armrest next to the bed, Amber easily bent the sturdy steel pipe with a little force, which is no longer something a seven-year-old can do. However, in the next moment, the blood vessels on Amber's forearm could not withstand this force, and a trace of blood oozed out of the pores, and then a faint red light immediately appeared on the arm, and the ruptured capillaries were repaired by the curse mark.

"Akai is such a pervert, I just opened the eighth gate and I was about to be unable to bear it, but he opened all eight doors and fought for a while before he fell, how strong his body must be! Amber thought, but she didn't dare to move anymore, for fear that if she used a little force, she would hurt herself, but the curse mark would consume the body's energy, and if you hurt too much, her physical strength would drop rapidly.

After a minute, the curse mark absorbed enough chakra, and began to split into one after another spell marks smaller than cells, slowly spreading around, and the red light soon revealed the surface of the chest, expanding towards the surroundings, every inch of skin, every muscle, every bone, until every cell in Amber's body was imprinted with a miniature curse mark, and then it stopped, and the red light gradually disappeared, revealing a normal complexion.

This is the essence of the Flesh Adhesion Technique, where each cell is implanted with a spell seal, and the body is maintained through the association between the spell marks, resulting in the effect of an immortal body. But the potential of this technique is definitely more than that, but it is a pity that after it was created, the people who cultivated it without exception ended up in ashes because they could not close the door of death, so the risk was too great and it was listed as a forbidden art, which means that this is a technique that only exists in theory.

After the spell seal was implanted, Amber immediately raised her hands and formed a concentrating finger, and pressed her index fingers on the door of death, and the spiritual energy of her whole body quickly gathered towards the door of death, strangling the door of death, intending to close it. The reason why Amber dared to cultivate was because he had the Divine Concentration Finger and gathered a large amount of spiritual power on the door of death, which could theoretically close the door of death like a point.

Soon, the door of death closed under great pressure, and the strength of the whole body slowly receded, and the feeling of weakness filled the whole body.

"Phew, it's going well, so that the immortal body will become. Amber breathed a sigh of relief with excitement on her face, such a dangerous forbidden technique was so easy to cultivate, and in the future, Amber would be able to coquettishly declare to the enemy, "Look at your pitiful, let you be stabbed!" This is a very compelling demeanor.

Releasing the Divine Finger, Amber was about to test the effect of the technique, but at this moment, a powerful force rushed into the whole body again, and the door to death that had been closed actually opened on its own.

"Damn!what's the situation?!" Amber was shocked, and quickly gathered his fingers again, forcibly closing the door of death, but Amber was much more careful this time, slowly dissipating her spiritual power, and carefully observing the door of death, and within a few seconds, the door of death loosened and opened on its own.

I tried it a few more times, but the amber was embarrassed, and it couldn't be closed permanently. The door of death is like a girl's membrane, as long as it is pierced, don't try to let it grow back on its own.

"This ...... What can I do about this? I can't keep concentrating my fingers, right? If my spiritual energy runs out...... Amber's face turned white in an instant, and now that I'm gone, I have nothing to do, what forbidden arts can I do? I can't do this even if I die? It's over.

"What should I do, I don't want to die so badly, but what should I do? No, no, no, I have to be calm! Calm down! There must be a way! There must be a way!" Amber forced herself to calm down, closed her eyes and thought about it, she had to find a way now, if she couldn't think of it, she would die, Amber, who had already died once, wanted to live more than anyone else.

"The meridian theory, the meridian structure, the human body structure, and the acupuncture points should be ...... No, no, no, the door of death should be different from other acupuncture points! It can't be closed, why can't it be closed? Why? Why is it?! What is the difference between the door of death and other acupuncture points? Is it ......?" Countless medical theoretical knowledge filled his mind, Amber suddenly opened his eyes, acupuncture points are the connection points between the meridians and the meridians, only the door of death is connected to the meridians and the blood circulation system of the two different systems, and the other acupuncture points are to limit the flow of chakra, only the door of death is completely closed, just like a dam, the pressure on both sides is different, once the hole is broken, if you want to block it again, you can only start from the side with high pressure, but the meridians do not have entities, only energy can run in them.

"But how can you block it? There is only chakra in the meridians, can you use your own chakra to block your own chakra? How is this possible? Spiritual energy can indeed block chakra, but this is not a long-term solution? What else can block chakra? Physical energy? No, no, what else...... Natural energy?" Amber was stunned when she thought of natural energy, it seemed that natural energy was much more advanced than Chakra, why don't you try it? Anyway, it's already a countdown to death, and a dead horse should be a live horse doctor.

Amber immediately concentrated, slowly feeling the natural energy around her. After a while, the spiritual energy on the fingers captured a faint natural energy, and a trace of pure natural energy slowly seeped into the death hole, mixing with the chakra, forming a trace of immortal chakra.

"Boom!" The spiritual energy that originally blocked the death hole was instantly rushed away by the Immortal Chakra, and a large amount of Chakra instantly rushed into the blood.

"Poof!" Amber spat out a mouthful of blood, this Nima, Chakra was strengthened by natural energy! Quickly concentrate on re-blocking the dead hole, Amber thought again, using natural energy to block the meridians does not work, Chakra has been strengthened instead, what is done now is to fight against the power of Chakra, it will not work on the other side of the door of death, natural energy directly acting on the flesh will petrify the flesh, that is the heart, once petrified, it will die.