On October 3, 661, the Coral Islands in the south of Nanda Island.

The huge domain ship of the Hanhai family brought the return fleet and the warships of the sandstorm regiment through this sea area. The steel fleet set up a large column on the sea surface.

The more spectacular scene is the sea area where the fleet sails. This is the shallow water planting area for sea humans.

Algae dyed the ocean into magnificent prairie, but were divided into grids of forty kilometers in length and width by the "waterway for ships".

The fleet led by the domain ships now walks a one-kilometer-wide waterway. This waterway existed 1,500 years ago, but the depth of the waterway was not as deep as today.

After the sea humans entered the industrial revolution, the waterway was specially deepened to 70 meters deep, allowing all large ships to pass safely.

In the huge fleet, Su Ding, wearing mechanical war uniforms, climbed onto the steel mast of the ship, opened the bulletproof glass baffle of the helmet, opened his eyes wide and faced the sea breeze, and activated the observation spell.

A perfectly circular geometric imitation mirror system unfolds in front of the face.

"This is really magnificent." After truly seeing the heart of the sea mankind, Su Deng sighed sincerely, lamenting the wonder of the humans in Shanghai who are opening up the ocean on this planet.

The green sea-water farmland on both sides of the waterway are decorated with villages of sea humans.

[One thousand and one hundred years ago, when sea humans did not have the technology of building islands with cement sand. Ancient sea humans expanded their maritime residences in a unique way]

The mineral turtle I saw in Bickley in my previous life was a common species on this planet.

Sea humans artificially hunt small ore turtles to feed large ore turtles. When the diameter of these large ore turtles rose to hundreds of meters, they were injected into feces, fish, shrimps, and internal organs from their backs, and then sealed. A large amount of biogas allowed the liquid in the ore turtles to be pushed out by the gas to form a huge cavity, making the ore turtles unable to sink.

Then the sea humans dragged these mineral turtles to the shallow sea, let them go and stranded, and hundreds of mineral turtles became island groups for sea humans to live in. A large number of artificial islands built village-level residences scattered in shallow sea areas.

Nowadays, this kind of natural village of sea humans still exists. On both sides of the waterway where the fleet clusters are walking, in the green sea fields, you can see barges traveling back and forth between the planting areas and the villages.

In Su Deng's observation, the naked sea human farmers jumped into the sea water. Then they plunged into the water like ducks, without a trace, and then drilled out of the water for dozens of seconds later.

Su Ding used domain techniques to lock these sea human farmers.

It was discovered that they did not rely on any armor and dived into the seabed thirty meters.

Maintain planting facilities on cement piles and maintain clusters of seaweed growth on shallow seabeds. Long-term work has left their skin and hair with a light green layer.

[The fleet led by the domain ship continues to move south, while the terminal is Yongri City]

Su Ding's field saw the prosperity of this city dozens of kilometers away. This is a gathering of modern civilizations of human beings.

Ten thousand years ago, sea humans built a large-scale residence here by relying on natural islands and feeding mineral turtles.

The layout of the island is a circle of wavy lines. These circles are stacked together, from the sky, like a sun radiating light, so it is called Yongri City.

After entering the industrial age, the sea humans mastered the technology of sand-blowing island building, which increased the total area of ​​major cities of sea humans by hundreds of times. The expansion of the city's area can better carry military and political functions.

The island in the indented port is for fleets to station. The dock protruding on the edge of the island is for mooring merchant ships.

The rails interlaced on the ring-shaped land, steel plants and raw material docks are lined up. The rows of buildings make Su Deng feel as if he had seen Dubai in the 21st century.

Between the wavy lines and island rings, there are connected sea water belts. These sea water belts are formed by manual excavation and have a depth of fifty meters.

The layout is like the first and second ring roads of the city, and giant ships can directly enter any roundabout area of ​​the city.

The urban area with a diameter of 70 kilometers, the sea ravines with spider webs intertwined, and such a spectacular project on the surface of the planet shocked the land-human visitors who saw the miracle of sea mankind for the first time.

...

Three hours later.

"Su Deng, you're at the port." Rong Juedang called Su Deng off the ship in the electromagnetic communication.

Flipped over and got up from the cabin, Su Deng put on the enhanced mechanical combat uniform and brought his own box, which contained automatic firearms and mechanical birds.

Su Deng walked out of the cabin and followed Rong Juedang, who was also equipped.

Su Deng and Rong Juedang almost unfolded the field, detecting this strange and spectacular city, then establishing a map, marking the road information in the city, and 345 targets.

Here, Rong Juedang's composition is a little faster than Su Ding, because the electronic system and software of his war uniform are more advanced than Su Ding. The Gun Flame Family has improved many technical details in this thousand years.

When the two finished the map, they looked at each other, then nodded, each turned on data transmission on the battle uniforms, and exchanged the collected map information.

Rongjue Dang entered Hong Kong and received a very high-standard welcome.

"Two Crown Masters, please stay here." The young and beautiful female waiter smiled and humbly guided the two of them.

Her delicate facial features, slightly raised chest, slender limbs, wearing a white maid outfit, her arms and long legs were covered with silver gloves and white stockings, and her gentle face was full of gentleness.

These waiters were carefully selected and have been used by dozens of generations. Their magic lineage shows that they are spirit controllers, they are from middle-class nobles of sea humans, but they provide services to families with higher identities.

This made Su Deng secretly shocked. The core population of the sea humans was originally small, and this part was dependent on it and served the higher level. So in this way, the sea humans had less manpower to actually control production and military.

Although this can create a very brilliant culture, its ruling efficiency is very low and society has not fully utilized its manpower.

Twenty minutes later, Su Deng looked at the glass building in front of him and couldn't help but open his mouth wide.

This tall glass building can make the five-star hotels in the past dwarf. Only the top of the building is housing, and the other floors are swimming pools, courts, gardens, and dance halls. This can no longer be classified as hotels, but standard modern palaces.

Su Deng pointed at the building and said to the maid who led the way: "This is for entertaining guests, not your private home in the upper level?"

The maid smiled gently and said, "Yes, this is your temporary residence. We will do our best to satisfy you."

Su Deng said silently in his heart: "Stay in an era, over-prosperity and stagnation."

Su Deng couldn't help but think of ancient Persia, ancient Rome, and ancient India on Earth. These civilizations were all highly prosperous and extremely extravagant in the later period, with decadent and collapsed in the upper class, and both production and military declined.

Rong Juedang flipped through the map, took out a pen from a closed metal tube on the arm of the war uniform, and drew a circle on the map, saying, "Arranging us nearby, we are here to negotiate industrial and technological cooperation. It is better to be closer to the production area."

A three-dimensional projection of the map appeared on his palm, pointing to a building that was obviously a dormitory building and said, "Just make us free of ten empty rooms."

The waitress showed a embarrassed expression on her face and hesitated: "This is, here, this is a pariah area."

Rongjuedang: "We urgently need to communicate with you in the technical field. There is no problem with lower accommodation conditions. We hope to investigate reliable cooperation plans in the shortest time."

This sentence is not just for the waitress.

He even gave a reminder to Su Deng who was staring at the building in a row - don't be happy and care about Shu.

Su Ding paused, looked at Rong Juedan with a serious look, and nodded with a smile. Then he also opened the map and determined the residence locations near various industrial areas in Yongri City.

[In the following month, Su Deng conducted detailed inspections in each factory, while Rongjuedang visited the high-level humans who went to and from the sea]

Most of the factories of the sea humans are automated, and each spiritual creature is in the machinery, completing the assembly line work.

Eight hundred years ago, the Western Continent used slimes to make bipedal mechas, and sea humans not only used biological muscles on heavy-duty aircraft.

In production, puppets are formed through the combination of Ziling and machinery. In smelting, processing plants, and chemical plants, cheap labor is formed.

Most automation factories are full of moisture, rust and fishy smell. Visiting land humans accompany them, jokingly calling the sea human industrial laboratory and the salted fish processing factory on land is the same style.

This is generally the case for industrial laboratories of sea humans. Only the area where the mother spirit produces the son spirit is clean and tidy.

As for the Mother Spirit Laboratory, the Hanhai Family was not open to visitors of the Sandcastle Group. Su Deng only used his field to roughly explore the experimental base in the center of Yongri City. Rong Juedang was invited in a few times.

...

One month later, in a pilot area of ​​a Hairen factory.

Su Deng, wearing industrial operation clothing, focused on dismantling the metal shell of the mechanical puppet on the Haihun production line, removed the transmission gear, and carefully pinched the muscle fibers of the inner Ziling.

At this time, on the platform with ceramic pieces attached, Su Ding, who was pulling the muscles from the rubber pipe, looked like a butcher and like a mechanic.

At this time, Rong Juedang walked in from the door. Su Deng wiped the tweezers clean with seaweed paper, roasted them on the fire and took them back into the box, and looked up and asked, "Is the communication still going well?"

Rong Juedang squatted down, controlled the observation spell, and looked at the mechanical parts dismantled by Su Deng and the biological tissues dissected. Then, while picking up the structural diagram of the Haihun mechanical production line, he said: "It's okay, Haihun is very interested in our military technology."

Su Dong: "Oh, what else?"

Rong Juedang said self-deprecatingly: "No more. If it weren't for us, they actually didn't need anything."

Su Deng glanced at the production line in front of him and sighed: "Yes, they have spiritual equipment skills and are very satisfied with the current situation."

[In this month, Su Deng and Rong Juedang also basically understood the social structure of human beings. This is an extremely stable social structure]

Since the Age of Shenshou, the top level of human society has not changed much for 20,000 years.

When humans in history were in turmoil, the change of power was like this—

The original large family of Jintong was forced to split into multiple small branches. One of the small branches grew into a large clan and became the main clan during the transformation. The other small branches were reduced to the upper level and became the sidelines.

In peace, this big family will not be separated for dozens of generations. Only in the next turbulent era, when the big family cannot maintain it, will they divide again, allowing one branch to stand out in the turbulence again, and other branches will reduce products, making room for the new branch.

The last time the Hanhai family divided the clan was when the Oka people invaded the Eastern Continent 1,500 years ago.

Therefore, the case of the Gun Flame Family "climbing from an ordinary little noble to a core nobleman of Hatsak for hundreds of years" is absolutely impossible among humans in the sea.

After the steam calendar, the history of a large number of civilians in society passing through standard laws has become middle-level, which is unimaginable for humans in the sea.

【Rongjuedang and Haihuman Golden Pupils communicate with each other, and there is a huge cultural gap]

During this month, except for Han Hai Jiyue taking out his mechanical suit at a private banquet, when Rong Juedang appreciated, both sides talked about topics such as industrial production.

Most of the time, the humans talk to Rong Juedang and are more concerned about Rong Juedang's birth.

These historically well-documented scholars have really found the origin of Rongjuedang's golden pupil type. This adjustable golden pupil is the same as a sea human family in the northern seas six thousand years ago.

The advantage of the variable golden pupil as a psychic: adjust the golden pupil, independently observe spiritual veins of different flow rates and thicknesses, and have a more layered grasp of the spiritual equipment veins.

This northern sea human has disappeared from the division of sects many times. Now the only small families can still slightly change the golden color of their pupils. The variable gold color in Rongjuedang's pupils is a solid color.

Moreover, in order to test whether Rong Juedang's Golden Pupil was like a product, the sea humans took him to visit the central test site of Yongri City.

In front of those huge experimental nests, Han Hai Ji Yue pointed at the spiritual veins on the mother's spirit and asked to observe.
To be continued...