Swallow the starry sky, grind to become the strongest in the universe

Chapter 5: Rapid Advancement, Three Levels of Domain

"No wonder he possesses a domain; at the planetary level, he's practically invincible."

Within the domain of Yu Duan, there is a certain degree of control over space and time.

Moreover, once you reach the Domain level, even without expanding your Domain...

The combined power of body, soul, primal energy, and will alone is enough to overwhelm beings of the same level, increasing combat power by more than tenfold.

If the domain is expanded, the combat power will increase exponentially!
After a moment, Yu Duan calmed down and focused his attention back on the Book of Cause and Effect.

"Paying the price of the first layer of light field in advance, basking in sunlight for 10 hours... roughly 11 and a half years."

Yu Duan frowned slightly at the efficiency, not entirely satisfied.

If it takes this long to advance to the next level of a realm, wouldn't the time required when we touch upon the more profound laws of the universe be astronomical?
"We must find a way to study and improve the efficiency of liver function."

Yu Duan looked at the progress bar on the Book of Cause and Effect, which was almost imperceptible but was indeed slowly creeping forward, and then looked up, his gaze falling on the pale fluorescent tubes on the ceiling of the gravity chamber.

Obviously, artificial light sources can also provide a faint "progress," but the efficiency is outrageously low—the progress bar only jumps by a meager 1 second for about 10 seconds of light exposure.

"What if we used real starlight instead? Would the efficiency leap forward? Or... a more powerful artificial high-energy ray?"

Efficiency is the most important issue, determining whether you achieve twice the result with half the effort or half the result with twice the effort.

However, improving efficiency requires careful research and extensive experimentation.

"We've been cooped up in the gravity chamber for ten days, it's time to get some fresh air."

Yu Duan got up, stretched his limbs, and walked towards the alloy door of the gravity chamber.

"laugh--"

The automatic doors slid open to the sides, and Yu Duan saw Master Zhenli and the other two standing at the entrance of the gravity chamber, their eyes burning with excitement.

"Um... Seniors, I was just about to ask you for guidance." Yu Duan was taken aback for a moment, and then quickly adopted a posture of seeking guidance.

"I've just made a breakthrough; it seems I've grasped the... domain recorded in the materials?"

Faced with Duan's question, Kunzhu and Shenjian remained silent, only turning to look at Master Zhenli beside them.

Master Zhenli let out a long breath, suppressing his excitement, and said, "That's right, what you've comprehended should be the legendary realm."

As he spoke, Master Zhenli raised his right hand, and a beam of light shone directly from the wristband's optical computer, then projected dozens of semi-transparent screens.

Each screen was playing a different battle video.

Countless lights and shadows intertwine, and terrifying energy surges rage—a scene of fierce battles between powerful beings in the universe.

"This is a video of a duel between powerful beings in the universe. What they are using... is the power of a domain!" Master Zhenli's tone unconsciously became awe-inspiring.

"Yu Duan, you may not know this... even among cosmic-level powerhouses, the vast majority do not possess a domain!"

Master Zhenli waved his hand, and most of the screens disappeared, leaving only three screens still playing the battle video.

The powerful figure wielding the domain in the video used a light domain that was almost identical to the one Yu Duan had just unleashed, only with a larger coverage area and greater power.

"Based on 'Number One's' preliminary analysis, you have grasped a domain, and it should be a 'light' type domain!"

After Master Zhenli finished speaking, he turned his gaze to Kunzhu and Shenjian, his tone resolute: "Yu Duan's talent is even greater than we imagined. For this trip to the universe, I will stay and oversee the clan. Let Yu Duan go."

"With Yu Duan's talent, if he could join a major power in the universe, his future would be limitless."

"As long as a race can produce a strong individual, it can escape the fate of being a slave race!"

Clearly, Master Zhenli had possessed the spaceship for a longer period and possessed a far greater understanding of cosmic civilizations than Master Kun and Shenjian.

"Going into space? No problem." Yu Duan nodded immediately, his expression serious. "I will master the universal language as soon as possible!"

Master Zhenli nodded repeatedly: "Alright, Yu Duan, you'll stay with me for the next few days. Number One and I will explain to you the precautions to take when entering the universe. Don't be careless!"

Yu Duan nodded and said, "Then I'll have to trouble you for guidance, Master."

Over the next few days, Master Zhenli carefully explained to Yu Duan the various things that needed attention.

One point that has been repeatedly emphasized is that one must never reveal to the outside world that one comes from an indigenous planet!
After that, Yu Duan entered the liver-intensive phase again, trying various artificial light sources and even simulating stellar radiation of different intensities.

After nearly half a month of back and forth, we finally found a solution that maximized efficiency using a progress bar.

...In the Light Source Galaxy, 240 million kilometers from the Sun, a disc-shaped single-person airship floats quietly in space.

This is a small rescue boat equipped on the B6-class Blazing Lotus Star spaceship. It is only A6-class, and the interior space is also very cramped, making it inconvenient for movement and exercise.

Inside the airship, Yu Duan gazed at the distant star, 7900 million kilometers away. At this distance, the blue-green life-bearing star appeared as insignificant as dust.

If Yu Duan weren't a planetary-level expert, it would be difficult for an ordinary person to observe the source star with the naked eye at this distance and under strong light interference.

"How are you feeling? Are you able to adapt to the environment in space?"

A light screen was projected in front of Yu Duan, and a video communication was in progress. On the screen appeared a bald, white-robed deity with a gentle smile on his face.

"Feeling good, barring any unforeseen circumstances, we won't need to return until our supplies are exhausted."

Yu Duan felt the intense starlight shining through the transparent shield and the heat radiating onto his body, and smiled in response to Shen Jian.

In fact, Yu Duan did not feel well. Being too close to the star, the terrifyingly high temperature radiation inside the cabin had caused the temperature inside to soar high enough to melt lead and tin. The air was scorching and distorted, and the metal cabin walls were too hot to touch.

For ordinary living beings, this is a deadly high-temperature oven.

For Duan, this temperature, while not fatal, is equivalent to an ordinary person engaging in outdoor activities under the midday sun in the height of summer, which is unbearable.

Regulating temperature is a basic function for A6-class airships, but the efficiency of processing is highest under high temperature conditions.

Shen Jian coughed twice, unable to hide his curiosity, and asked, "Ahem, Yu Duan, does this method really have an advantage in comprehending a domain?"

"Personally, I feel there is a noticeable improvement. Of course, this method may not be suitable for everyone."

Yu Duan glanced at the progress bar of the Book of Cause and Effect, which showed that the efficiency had increased by 37 times.

At this rate, it would only take less than 118 days to gain insights into the second realm.

This is the most efficient solution developed under the existing conditions.

Once we join a major power in the universe, we will surely be able to find a more efficient solution.

Shen Jian nodded: "Is that so? Then I'll talk to Kun Zhu. I'll have him try cultivating in seclusion in the Hundred Thousand Mountains to see if it helps him comprehend the essence of the earth. I won't disturb you any longer."

After the communication was disconnected, silence returned to the cabin, with only the low hum of starlight penetrating the shield and the omnipresent, suffocating heat.

Yu Duan turned around to face the blazing star that filled the entire porthole, as if it were igniting his soul, feeling the stinging sensation on his skin and the throbbing of the power within him surging faster under the light.

"Open the liver!"

Yu Duan grinned, sweat dripping from his chin onto the scorching floor with a soft hissing sound, rising in a wisp of white smoke.

In the intense light and heat, Yu Duan's consciousness was immersed in the joy of the Book of Cause and Effect's progress bar increasing rapidly, and an almost 'perverted' smile appeared on his face.

……

The stars move silently, and time flows quietly in the eternal light of the stars.

More than 300 days have passed in the blink of an eye.

These days, Yu Duan has been practicing and comprehending the mysteries of the field in this purgatory near the star.

On the planet Light Source, the seasons change and turn, and there are only three days left until the first day of the new calendar year 52.

"It's time to go."

Inside the airship, Yu Duan, who had been sitting cross-legged in meditation, suddenly opened his eyes, a dazzling light flashing in them.

In an instant, three dazzling and layered domains of light spread out from him, illuminating the deep space!

The light flowed, as if composed of countless tiny light prisms, nested and reflecting each other, illuminating the small cabin like a divine kingdom.

Within the range of the light field's diffusion, even the raging starlight seemed to be combed and tamed, taking on a strange rhythm.

The Realm of Light—Triple!
More than 200 days ago, he had already fully completed the progress bar for the first level of the field, and then without any hesitation, he directly advanced the understanding of the second level of the light field.

The advance access to insights into the realm of dual light still comes at the cost of basking in sunlight, only the time required is doubled to 20 hours.

However, with the 37x efficiency boost, it actually took only 225 days, not 20 hours, to successfully complete the progress bar.

Yu Duan also successfully became a planetary-level powerhouse in the triple ray realm before entering the universe!
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(End of this chapter)