The original soul master was responsible for the forging and plasticity of rare metals, as well as the design, production, and maintenance of soul guides. It can be said that it covers all the sub-professions nowadays. And the most comprehensive genius soul master is able to skillfully use every type of soul guide.

However, with the development of the times, a person's energy is limited, and it is simply unrealistic to want to master these at the same time.

Ten thousand years ago, the forging of rare metals was actually just a simple shaping to make the shell mold of the soul guide, which can be described as a gap between heaven and earth compared to the forging technology of today's era. It often takes decades or more to train a good blacksmith, and this is based on having a talent for blacksmithing.

Not to mention mech design, mech manufacturing, and mech repair. The perfection of the core circle and the improvement of soul guide technology have made these three extremely sophisticated. It takes a lot of effort to master one of them.

Comparatively speaking, mecha repair is more troublesome, because he needs to understand mecha design and mecha manufacturing at the same time, which is equivalent to learning two sub-professions, but he doesn't have to be so proficient.

And Yu Nanyuan's choice was the path of the soul master back then, in addition to forging, mecha design, mecha manufacturing, and mecha repair went hand in hand. Mecha repair is special, in fact, all he needs to learn is mecha design and mecha manufacturing.

If you are proficient in mecha design and mecha manufacturing, you will naturally be able to become an excellent soul master.

Yu Nanyuan came to the metal table with a complicated expression and slowly opened the drawer.

"Bang la-la-" There was a crisp sound of metal clashing, and it was filled with hexagonal metal blocks engraved with intricate and obscure patterns. There are metal blocks of various colors, and the patterns engraved on them are also different.

This is exactly what he left behind when he learned to inscribe the core circle through different types of rare metals. At the beginning, he had not awakened the martial soul, and without the blessing of soul power, these core magic circles could only be regarded as half-finished products.

But who knows how much effort he put into accomplishing this when he was young?

Yu Nanyuan casually took out a piece of blue-gold metal about the size of a walnut from it, raised his right hand, and a miniature version of the Void Chain that shone with dazzling silver light quietly appeared. The part that belonged to the chain was wrapped around his forearm, and the long, sharp wedge of the front link was firmly in his hand.

Unlike 10,000 years ago, modern mechmakers usually use their own martial spirits to engrave their core circles. In this way, the bond between the two sides can be deepened, and the mecha or fighting armor produced will also be more suitable for itself. Therefore, the vast majority of mecha makers are soul masters like Yu Nanyuan who have sharp weapons and martial souls.

Of course, this is not absolute. Ordinary people can also become a mecha maker with the blessing of a carving knife and a special soul power aid. It's just that their future development potential is limited, and at most they can only make some generalized metal parts.

Yu Nanyuan controlled the sharp tip of the wedge to fall on the metal block, and his fingertips began to jump. Every time it falls, it is very calm and firm, and the whole process is smooth. He wasn't inscribed a new core circle, but he was building on the existing one.

Although he hadn't been in contact with the inscription of the core magic circle for all these years, after the awakening of the martial soul and the soul power, his vision also changed. Many of the problems that plagued him in the past were solved, and the whole person suddenly became much brighter.

Yu Nanyuan sat in front of the metal table like a sculpture, not moving. Only a few fingers of the right hand controlled the wedge, slowly inscribed under the infusion of soul power. In the process, there was not even a half-minute change in the rhythm.

After about a quarter of an hour, he stopped what he was doing. His own soul power was injected into the blue-gold metal block, and the lines quickly lit up, emitting a soft blue halo. Eventually, the halos converged into a pillar of light that rose a foot high. The pillar of light was straight and solid, and the metal block in the palm of his left hand became as clear as crystal.

The expected success did not make the slightest wave in Yu Nanyuan's heart. He placed the completed core circle on the table, took out a second piece of metal to inscribe and perfect, and the cycle repeated.

Yu Zhen didn't know when he appeared at the door of the laboratory, and sighed lightly.

"Nanyuan, you still embarked on this path after all."

He didn't know whether to be relieved or worried about Yu Nanyuan.

Taking a deep breath, Yu Zhen quietly closed the door of the laboratory for Yu Nanyuan, came to the crystal floor-to-ceiling window in the living room, and looked into the distance with a distracted gaze.

The handover between him and Ji Hongyu was smooth. True dragon bloodlines have always been synonymous with power. After that xenomorph 10,000-year-old ice Jiao was made into a soul, among all the 10,000-year-old souls stored in the Spirit Transmission Tower, it was an existence with relatively high potential.

It can be expected that there will be countless ice attribute soul masters on the continent.

The headquarters of the Spirit Transmission Tower made a promise that they would give Yu Nanyuan a chance to surrender the unyielding soul in the future. Even if Yu Nanyuan doesn't succeed, he will provide him with a 10,000-year soul with matching attributes for free.

Yu Zhen understood that Yu Nanyuan's future path could only be walked by himself, and he had no qualifications to interfere. All he could do was do his best to clear the way for him.

It wasn't until early in the morning that Yu Nanyuan walked out of the laboratory. On the metal table behind him, all of them were core circles that had been successfully inscribed.

Yu Zhen sat at the head of the living room table with a smile on his face and beckoned to Yu Nanyuan.

"Nanyuan, come over and have breakfast first."

Sumptuous dishes prepared by a private chef are served on the table.

"Yes, Grandpa."

Yu Nanyuan naturally sat opposite Yu Zhen, concentrating on the core formation for a long time, his spirit was inevitably a little tired. And he found that the ingredients used in these dishes basically have the effect of relieving mental fatigue.

The most precious thing is a sea urchin unique to the eastern seashore of the Sun and Moon Federation, the Yunling sea urchin. Taking it by a soul master can promote the growth of spiritual power and nourish the soul. If the soul beast eats it, it will be able to open the spiritual intelligence, and the cultivation will be twice the result with half the effort. Of course, the price is also extremely high, and a soul sea urchin often costs hundreds of thousands of federal coins. At this price, you can buy a white ten-year soul from the Spirit Tower.

Yu Zhen pushed the tea cup containing the spirit sea urchin in front of Yu Nanyuan, and said casually in a gentle tone: "Nanyuan, you have awakened the martial soul now, and you can just enter the Junior Soul Master Academy to study, so that you can also make some friends." ”

"Grandpa, I don't think it's necessary for me to enter the Junior Soul Master Academy. What I was able to learn in junior college, I basically knew at a very young age. In the past three years, I want to cultivate on my own. "Yu Nanyuan already has a plan for the future.

Yu Zhen is not the kind of pedantic and stubborn person, and after a moment of silence, he answered heartily.

"Good. Since Nanyuan has your own ideas, let's follow your ideas. Wait until you are nine years old, and then directly enter the Intermediate Department of Tokai College to study. ”

After breakfast, Yu Zhen handed over the three-thousand-year-old winter snow lotus that he photographed last night to Yu Nanyuan. Through the jade box, you can see the crystal clear body of this winter snow lotus, as if it is condensed by ice crystals, pure and flawless. In particular, the eight petals that spread out are clearly visible inside.

"The medicinal properties of the Winter Snow Lotus are mild, Nanyuan, you can take one of its petals every seven days and absorb the medicinal effect slowly. Your body and soul power will be tempered by the effects of the medicine on their own. ”

Yu Nanyuan took the jade box and nodded solemnly. With this Winter Snow Lotus, there would be no hidden danger for him to raise his soul to the thousand-year level.

Yu Zhen looked at Yu Nanyuan's face, and suddenly asked, "Nanyuan, do you want to become a mecha master like grandpa?" ”

"Grandpa, I want to be a fighting armor master more than a mecha master." Yu Nanyuan was stunned when he heard this, and then showed a mouthful of white teeth.

"If a soul master doesn't aim to become a fighting armor master, then I can only say that he will live a relatively failed life."

"Stinky boy, are you saying that grandpa has failed in this life?!" Yu Zhen reprimanded with a smile, and then the smile on his face retracted, and he thoughtfully helped the gold-rimmed glasses on the bridge of his nose.

"But speaking of Dou Armor Master, there is one in the academy, and he is from that place......"