Human beings are constantly sending radio signals into outer space to explore other life in the universe. In 2137 AD, the cosmic coordinates of the Earth were discovered, and the Zerg of the Andromeda Galaxy invaded the Earth!

In the case of the use of nuclear weapons by human beings and the loss of 80% of the population, they still failed to defeat the Zerg, and at the moment when the human race on the earth was about to perish, the Terrans from the Milky Way Oberon Star arrived in time and expelled the Zerg from the solar system.

In 2138 AD, the earth officially joined the Galactic Human Alliance, and the earth also broke the boundaries between countries, established the Earth Federation, and began the reconstruction of the earth.

The Oberon not only helped the Earth defeat the Zerg, but also brought many high-tech technologies, such as interstellar jumps, curvature engines, information transmission across time and space, and a series of military and civilian technologies, and helped parts of the Earth eliminate the radiation generated by the use of thermonuclear weapons. After more than ten years of construction, the earth has gone from being less than a first-level cosmic civilization to a second-level cosmic civilization, officially entering the interstellar era.

From the Oberon people, the earthlings know that there are countless races in the universe, countless wars, and the galaxy human race is facing the invasion of multiple races, the Zerg is only one of them, and the human race on the earth urgently needs to become stronger.

In the past ten years, the Zerg has never given up on the invasion of the solar system, and countless wars have occurred. The solar system is located on the outer part of the Milky Way, on the cantilever of Orion, so it has become the frontier of the Galactic Terran Alliance's resistance to the Zerg invasion. The war is fought on resources, and the construction of various advanced weapons such as starships and mechs requires a large amount of metals, so planets with resource mining value such as Venus, Jupiter and their moons have become human mines, the Earth has become a base star, and Mars is also being transformed into a habitable planet.

Piloting battleships, mecha combat, and ground combat in harsh environments all require extremely strong physical fitness, and the earthlings in the early days could not meet the requirements at all. In the early battle against the Zerg, most of the combatants were still dominated by Oberon stars, and the earth humans only did some logistics work.

This situation cannot continue forever, the Oberon Star has been reduced from the initial 50,000 to less than 20,000 now, but the invasion of the Zerg has not stopped, and the Earth Federation needs to quickly train its own warriors. Genetic drugs have been developed and used, although they can quickly strengthen the human body, but the success rate is low and the cost is too high. In this context, according to their own cultivation exercises, combined with the physical characteristics of the earthlings, the Oberon Star people created a cultivation method called "Star Refinement".

This exercise allows people to absorb the dark energy that is free in the universe and strengthen the human body. This exercise is divided into six levels, which are star level, nebula level, stellar level, constellation level, galaxy level, and star field level. Each major grade is further divided into nine smaller grades. It is said that cultivating to the galaxy level, one person can fight against a starry sky fleet, but how difficult it is. At present, the highest cultivation level on Earth is only the seventh level of Nebula.

The "Star Refining" exercises, together with courses such as "Introduction to the Universe" and "The Lingua Franca of the Galactic Terran", have become compulsory courses for all high school students in the Federation, although the study burden has been further increased, but the students have no complaints, in this era, the strong have privileges.

Moody, 18 years old, orphan, his parents died in the invasion of the Zerg, a fourth-level cultivator of Stardust, did not graduate from high school, participated in a fight at the age of 17, and caused death by mistake, because of his identity as a cultivator, he was assigned to the Jupiter 3 satellite 6 mine as a mine inspector.

During this year, except for the transport, you can see living people when the transport ship comes, and the rest of the time is accompanied by robots and dances with loneliness. It's a punishment and a grind.

On this day, Moody wore protective clothing as usual, inspecting the entire mine, and when passing by a stockyard, a ghostly light pierced Moody's eyes, even through the protective mask, Moody's eyes still narrowed slightly.

Moody frowned, a little strange, and muttered to himself, "How can nickel pyrite emit such a bright light?" ”

He walked in the direction of the ghostly light, to a pile of ore, trying to find the glowing object, and another flash of ghostly light was gone, although briefly, but still caught by Moody. In the middle of a pile of ore, a crystal the size of a dark purple peach pit lay down.

Moody picked it up and looked through the mask, it was an eight-sided diamond-shaped crystal with a smooth surface and a halo covering it, extremely mysterious. He slipped the gem into the pocket of his hazmat suit, ready to study it carefully after the inspection.

Half an hour later, Moody finished the inspection and returned to the dormitory where he lived, the dormitory has a total of two houses, all alloy structure, one bedroom, one bathroom, the bedroom is also a bedroom The furnishings are very simple, a table, a chair, a bed, all of which are alloy, revealing a cold atmosphere. There is also a computer on the table that can transmit information across time and space. After washing, Moody sent a work log to the smelting headquarters on Mars, and then simply ate some synthetic food.

After that, Moody took out the diamond-shaped crystal, sat on the bed, and looked at the crystal, he found that looking in through the halo on the surface of the crystal, he would see a miniature galaxy slowly rotating, and his mind would be unconsciously attracted, and he almost fell into it, Moody shook his head vigorously to get rid of that feeling. He wanted to break his head, but he didn't understand what it was, so he simply put it aside and left it alone.

Moody sat cross-legged, ready to start today's cultivation, since he came here, he insisted on cultivating every day, from the initial Stardust Level 3, to the Stardust Level 4

The dark energy is slowly injected into Moody's body through the Baihui acupoint above the head, circulating along the body meridians for a week, and then converging at the dantian, the four points of starlight slowly rotate around the dantian, and every time the stardust period is raised by a level, a little starlight will be formed, and when nine points of starlight are formed, it will merge into one, form a nebula, and enter the nebula level.

After cultivating for five cycles, something strange happened, and in an instant, Moody felt that he couldn't move a bit, as if he had been immobilized. The diamond-shaped crystal next to him floated in the air, slowly approaching the dantian at his navel, as if attracted by the dantian. Then Moody felt a scorching tingling sensation coming, and the crystals entered his body and merged with the dantian, and Moody was a little dumbfounded.

The dantian is the foundation of the cultivator, and if there is a problem with the dantian, the cultivator will be abolished.

When he could move, Moody immediately ran the exercises to determine if there was something wrong with the dantian. Moody only felt a large amount of dark energy surging towards the Baihui acupoint, and after entering his body, it actually made his meridians a little swollen and painful, and the speed of absorbing dark energy was 10 times that of before. Moody was extremely pleased, there was no problem with the dantian, but the cultivation speed had accelerated, all of which stemmed from the mysterious crystal.

Moody remembered a sentence at this time: "It's a blessing and not a curse, it's a disaster that can't be avoided", but he was much more calm.

Moody was determined to ignore the mysterious crystals and continue to cultivate, and finally, his body was shaken, and the fifth point of starlight was formed, and he officially became a fifth-level Stardust cultivator. The impurities and filth that were eliminated from the body did not affect Moody's mood.

He couldn't wait to come to the table, picked up a titanium alloy dagger, his mind moved, a layer of ghost light covered it, and then cut down on the alloy table, the alloy table was like tofu, and a corner was cut off, much easier than when Stardust was level 4.

Moody calmed down his joy, took a shower, lay down on the bed, and fell into a deep sleep.