The biggest change in Yun Hong's body is the heart, which beats faster and more powerfully, and the heart is the engine of his body, pumping blood to all corners of his body all the time.

"Not only that, but now your body is just a blank sheet of paper, and if you engrave and refine it into a formation inside your body, bones, flesh, and even cells, then this body itself will become the door of truth." The improvement of physical fitness made Yun Hong unable to suppress crazy thoughts in his mind. There are a total of fifty trillion cells in the human body, and each cell is engraved with a refining array, and at that time, Yun Hong's body itself was the appearance of truth.

The knowledge obtained from dissecting the body just now made Yun Hong understand that the flesh is composed of material elements with a special structure, and its essence is no different from that of a mechanical prosthetic. The villain in the bottle once obtained the truth through the land refining array, which is equivalent to directly acting on the changes in the spiritual world, and needs to be supported by the philosopher's stone as a price.

If Yun Hong refines his body into the Gate of Truth, he may not be as good as the "god" who once held the sun in his hand, but with the accumulation of knowledge, the Gate of Truth that Yun Hong created will eventually grow to the level of the True Gate of Truth.

Yun Hong didn't feel lost in his alchemist path at this time, he found the door that distinguished him from the villain in the bottle and led to the truth.

"Wait, it seems that the spiritual world has also changed because of this accident, and I always feel that the spirit seems to be sharper."

Yun Hong closed his eyes and carefully felt the changes in the spiritual world after its collapse and remodeling, even the former villain in the bottle could only use the Philosopher's Stone to understand the spiritual world, and Yun Hong himself had no understanding of the spiritual world except for inheriting part of the knowledge of the villain in the bottle. What he could feel was that now the structure of his spiritual world had undergone earth-shaking changes, and it was more stable than the average person's spiritual structure, and then the strength had touched the threshold of an alchemist.

"Considering the changes in the body, the most intuitive consumption of alchemy is physical strength, and his current ability can be called a qualified alchemist, maybe he can't do the national alchemist in "Fullmetal Alchemist" to destroy a street at every turn, there must be Edward's surface strength, and the most important thing is that he is not an alchemist who is limited to one field."

"Alchemist of Steel, Alchemist of Ice, Alchemist of Flame, Alchemist of Red Lotus, Alchemist of Heroic Wrist." Yun Hong recalled the title of national alchemist in "Fullmetal Alchemist" and grinned, and put his hands together to launch different alchemy.

An iron flower was formed from the steel splint of the Iron City, the heart of the flower is fire, the petals are ice, blooming in an incomparably strange and magnificent scene, after a short period of splendor, the steel branches crumble and explode, turning into iron filings and reintegrating into the laboratory floor. The magic-like scene means that Yun Hong already has the ability to perform alchemy in different fields, which is not as simple as 1+1=1 for the alchemist's improvement.

Walking out of the laboratory, Yun Hong first asked Robert to prepare high-calorie food from the supermarket for himself, and Yun Hong didn't feel tired after eating several people's portions, which showed that his body was indeed thirsty for food. After eating and drinking, Yun Hong finally felt that his physical strength had recovered a lot, and he could make a loud sound of breaking the air with a punch in the air.

When he came to the front of the car, Sifang Chuan Calamus, who was sitting in the captain's position, stood up, and when he saw him, his face showed surprise and puzzlement: "Husband? ”

"What's wrong? A strange look. ”

Sifang Chuan Calamus was embarrassed and chuckled softly: "It's nothing, I just feel that my husband has changed a lot, it's my illusion." ”

It's not her illusion, after injecting a genetic enhancement potion, Yun Hong's spirit and spirit will change, and the accumulation of a large number of details is enough to subvert the previous impression.

Yun Hong smiled without explaining too much, turned his head to the female correspondent at the front of the car and asked, "Yu Na, how long will it take to arrive at Matsumoto Station." ”

Yu Na, who was operating Juncheng, nodded in response: "I have passed the third prompt sign just now, and there are about ten minutes away." ”

"Okay, then you tell the samurai to get ready for battle."

Yuna nodded, and the messenger at the front of the car informed the samurai in the carriage that they were ready to fight.

Yun Hong was not in a hurry, he came to the empty position at the front of the car, put his hands together and launched the refining array, he was also very curious about the structure of Juncheng, the steam power device in this world was much stronger than the same type of technology in the previous world, and it was necessary to study it. He had always felt that this knowledge was quite weak, and there was no need to invest in research when he didn't have free time.

The blue arc that overflowed into a formation spread to the entire train, and the process of braking the steam engine mechanism was clearly feedback, the principle remained the same, but the structure was more complex and advanced than the modern steam power plant in the previous world. Yun Hong narrowed his eyes and looked at his mechanical prosthetic, he had already understood the structure of the steam cylinder, and now combined with the more complex knowledge of the Juncheng steam drive mechanism, it seemed that he could properly transform his mechanical prosthetic.

The blue formation encircled the mechanical prosthetic, and the sound of gears constantly emanating from inside the mechanical prosthetic.

"Husband, what are you doing?" Standing behind him, the Sifang Chuan Calamus poked her head out curiously and asked.

"Adjust the function of this manipulator."

Yun Hong clearly felt the convenience brought by the physical strengthening, it was a very difficult process to redo the mechanical prosthetic, after all, this was the product he made with the human body refining in the "villain in a bottle" state, but the refining array continued to be activated for five minutes, and he didn't feel obvious fatigue. Every second the mechanical prosthetic made hundreds of attempts on the mechanical structure, and the prosthetic transformation was finally completed after countless collision attempts in five minutes.

Yun Hong made a small steam trap inside the mechanical prosthetic, which can be used freely, and when consumed to a certain extent, it needs to be replenished with alchemy.

The important thing is that the steam trap he made is theoretically stronger than the steam trap in the Iron City! Imagine how powerful the steam mechanism that can drive these dozens of tons of steel trains is, and the power of the steel balls fired by them will not be weaker than the large-caliber bullets fired by anti-tank equipment.

"呲呲~!"

Yun Hong's mechanical prosthetic changed for a while, the side end of the arm spewed out white hot steam, and the palm disappeared from the wrist part into a cannon barrel, and the caliber was not so much a gun as a cannon. Yun Hong hadn't forgotten that he was almost killed by the Kabane Fusion Ecological Group, and although he didn't have to worry about his own safety with Robert by his side, he still thought of personally dealing with these world's most terrifying monsters, and let out a bad breath.

Sifang Chuan Calamus stroked her skirt and squatted down beside Yun Hong, her eyes wide as she watched the miraculous changes of Yun Hong's mechanical prosthetics, feeling that there were more and more secrets in her husband, and every time she thought she knew something, she would find more incredible places.