Ten thousand I am across the heavens

Realizing that underground warfare required extensive earthwork, the Shanhe Republic proactively dispatched a large number of civil engineering graduates to participate in the construction of military fortifications on the front lines.

The job prospects for civil engineering majors are already quite limited in the Republic of Mountains and Rivers. This is because the Republic has essentially completed its nanomechanical transformation of everything; even the smallest plants can be transformed into various architectural forms at will. All that's needed is to input the blueprints; no construction process is required. In a short period of time, the desired building will rise from the ground.

Therefore, anyone in the Republic of Mountains and Rivers with the necessary authority and design skills can freely create any building they desire, significantly reducing traditional employment opportunities for civil engineering graduates. They are forced to learn additional design skills and provide design templates for others.

The problem is that this department has a large number of graduates. Back in the days of massive infrastructure construction, the entire Republic of China was undergoing a period of great construction activity. Tens of thousands of civil engineering graduates worked tirelessly on one construction site after another.

But their construction is now completely saturated, and their power is only needed for things like wars outside their own territory.

It's fair to say these guys have been waiting for this day for ages. If it weren't for the limited spots, they would have all rushed to the Western Continent at once.

With these guys joining the logistics and defense forces, the speed of earthmoving operations noticeably increased. Compared to ordinary soldiers and commanders, these civil engineers all possess specialized, specialized, and deadly techniques.

These types of killing moves are derived from the Five Elements killing moves. They are considered improvements on the most traditional killing moves. Although they have recently shown a slight decline, due to the accumulation of knowledge over millions of years, their level of sophistication is still among the best in many schools.

The soldiers at the front lines saw only churning mud underground. Rocks and soil mixed together, then turned into liquid mud, swirling like eddies underground. It eventually coalesced into tunnel after tunnel.

The vortex would spew out ore, which would be smelted into metal strips and quickly laid out in the tunnel.

When local metal minerals are scarce, venomous insects will spontaneously generate metal. The track laying within the tunnel is completed.

These were two types of Gu worms that the Mountain and River Republic relied heavily on when it first established itself: the Steel Reinforcement Gu and the Concrete Gu. Now, these two Gu worms have been refined to the fifth level and are widely used, becoming the cornerstone of the Earth and Wood School's immortal techniques.

They could create large quantities of reinforced concrete out of thin air. Back when facing the immortals in direct combat, it was precisely these concrete fortresses, built through extensive earthwork, that withstood many of the immortals' deadly attacks.

As long as the fortified zone is constructed quickly and solidly enough, even an attack from an immortal, comparable in power to a nuclear explosion, will not harm the people inside in the slightest.

Now, these two Gu worms are occasionally used in reverse. Their ability to devour rocks is utilized to rapidly dig tunnels, and when combined with other techniques to form Immortal Path killing moves, they can be used in numerous unique and specialized attacks. Whether or not one can effectively execute an Immortal Path killing move truly depends on the efforts of the civil engineering students. After all, Immortal Path killing moves are different from the advanced killing moves of the Mountain and River Republic. Although the difference in power between the two is sometimes not significant, many advanced killing moves are so exquisite that even without the involvement of the Immortal Gu, their power is not inferior to, and may even surpass, that of Immortal Path killing moves.

However, most advanced killing moves are actually designed for versatility, sacrificing the power amplification achieved by using Immortal Gu as a medium. If a large number of Immortal Gu were truly available, allowing the development of genuine advanced immortal killing moves, their power would increase by a significant level.

In the past, not many civil engineering guys possessed Immortal Gu, since it was a unique resource; once one was crafted, a second couldn't be made. To have one for everyone, each person would have to develop a different type. The difficulty of such an operation is unimaginable.

However, with the civil engineering industry in the Republic of Mountains and Rivers reaching saturation, they, who were originally working on the production line, had to switch to research and development positions. While developing various directly applicable templates, they could only use their extra energy to research and develop their own unique "Gu worms".

The nature of Immortal Gu is both difficult and simple. If one has experience in refining Gu worms, then at the moment of immortality, by seeking answers from heaven and earth, there's a considerable probability of directly comprehending the formula for a sixth-rank Immortal Gu. With so many immortals in the Mountain and River Republic, and knowledge shared among them, even without utilizing the comprehension state of seeking heaven and earth, simply designing an Immortal Gu for oneself, through discussions and research with a team, and relying on the vast knowledge accumulated by others, still has a high probability of developing one's own unique Immortal Gu.

Generally speaking, the immortal Gu crafted by the Earth and Wood element are special steel or special concrete, possessing a variety of different properties, such as being exceptionally strong and tough, or particularly resistant to high temperatures and able to block the transmission of vibrations.

Various special material-type immortal Gu were refined during their previously boredom-inducing period. Now, after being sent to the battlefield, they were used to construct advanced special killing moves, and the fortresses they built were even more unique. Take the most classic special concrete immortal Gu as an example; there are hundreds, even thousands, of different special types of similar immortal Gu. Each one has different characteristics, but they all have one basic characteristic: sturdiness. Compared to ordinary concrete Gu, they are at least one level stronger. Beyond that, they possess specialized abilities and effects.

And this single, additional sturdiness effect makes their upgraded fortified zone countless times more terrifying.

This thing was created using a deadly technique from the Immortal Path. Its sturdiness makes it truly difficult for even an immortal without the power of an Immortal Gu to destroy.

While the Ghostly Demon Lord can equip his followers with advanced gear, granting them combat power comparable to immortals, this power is still comparable to immortals without the Immortal Gu. The unique nature of the Immortal Gu itself dictates that mass-producing it would require an immense amount of manpower and resources, demanding countless individuals dedicate their energy and wisdom to creating vast wealth through labor. Only then could it be achieved to the point where almost everyone possesses one.

In a battle of this scale, the Ghostly Demon Lord could never possibly provide such a large number of Immortal Gu. The elite Obsessives on the front lines were finding it extremely difficult to deal with these concrete walls, each with its own distinct characteristics but all remarkably sturdy. While they weren't invincible, it would take a considerable amount of time, undoubtedly placing them in a highly passive strategic position.

[To be continued]

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