Long Yu went to the Saint Emperor's residence and told her about the White-Feathered Demons such as Si Tianlei and Si Qingfeng in the Hongying small world, and then went straight to find Yu Fei.
After absorbing the spiritual energy of heaven and earth for another two days, Long Yu will be able to know what is going on with the Heart of Demon Dust. Hong Ying is not in a hurry to do the battlefield legion mission now, because she also wants to get as familiar with the endless-level super-grade combat weapon as possible, so that she can exert its maximum combat effectiveness at that time.
Of course, Hong Ying told Long Yu that she herself also possessed the Taichu Divine Product, but she would not use it unless it was absolutely necessary. After all, it was her last and strongest reliance.
In addition, in her small world, the fruit of the innate magical power of the blood realm fantasy world was destroyed and could not be restored in a short time. Her combat effectiveness was weakened a lot. If she was not familiar with the endless super-grade combat soldiers, her combat effectiveness would be worse than before. It would definitely be very dangerous to go out and complete the battlefield legion mission.
…
In Concubine Yu’s little world.
Long Yu came here again and continued to absorb the rich spiritual energy of heaven and earth, allowing the Heart of Demon Dust to devour it. After a day, Long Yu absorbed the spiritual energy of heaven and earth again, but still did not feel any changes in the Heart of Demon Dust.
This second heart of Long Yu was constantly devouring the spiritual energy of the surrounding heaven and earth without any reaction at all, as if it was a bottomless pit that swallowed the spiritual energy of heaven and earth.
"Continue to devour it. It's possible that the Demon Dust Heart is just not reacting on the surface, but is actually in the process of constantly improving..."
Long Yu was a little puzzled, but he had no other choice but to let the Heart of Demon Dust continue to devour the spiritual energy of heaven and earth.
If there is still no response after three days in total, we will think of other solutions at that time.
As the Heart of Demon Dust continued to devour the spiritual energy of heaven and earth, the rich spiritual energy of heaven and earth that had been stored in Yu Fei's small world was constantly being consumed, and there was not even enough time to regenerate it. The speed at which the Heart of Demon Dust devoured the spiritual energy of heaven and earth was really too fast.
If the amount of spiritual energy absorbed from the first level to the second level of an ordinary martial arts secret technique within three days is one, then the amount of spiritual energy that the Demon Dust Heart is now devouring is at least ten times more than that!
In other words, the amount of spiritual energy from heaven and earth absorbed by the Heart of Demon Dust every day is enough to allow a martial artist to practice ordinary martial arts secrets from the first level to the second level three times or more!
In other words, the magic dust heart is at least ten times more difficult to practice than ordinary martial arts secrets. And if after three days, there is still no change in the magic dust heart, then the situation may be more complicated than Long Yu imagined.
Even Yu Fei was shocked at the speed at which Long Yu absorbed the spiritual energy of heaven and earth.
Now Yu Fei knows that Long Yu has practiced two martial arts secrets, the Pure World Body and the Devil Dust Heart. Both are powerful martial arts secrets that he comprehended from the Nine Nether Prison Monument. However, she did not expect that the spiritual energy of heaven and earth required to practice the Devil Dust Heart was so terrifying!
"I don't know what special secrets are hidden in this Nine Nether Prison Stele. Unfortunately, after observing it for the past two days, I have no clue at all. I can't sense any special aura in it at all. Only the aura of the revelation-level Nine Nether God Text has given me a little insight..."
Concubine Yu has been staying near the Nine Nether Prison Monument in her own little world for two days. She has been trying to comprehend the things in the Nine Nether Prison Monument, but to no avail.
She remembered what Long Yu said, that the interior of the Nine Nether Prison Monument seemed to be filled with revelation-level Nine Nether Divine Scriptures, which were very rich. It should be good to comprehend the revelation-level Nine Nether Divine Scriptures from it, but unfortunately Long Yu was not present, so Yu Fei did not dare to rashly enter the Nine Nether Prison Monument.
It took the Nine Nether Dragon Emperor an unknown amount of time to comprehend two martial arts secrets after he obtained the Nine Nether Prison Stele. Therefore, even for someone as talented as Yu Fei, it would be impossible for her to comprehend anything from them in such a short period of time.
Even with Long Yu's guidance and explanation, it would be very difficult for her to understand anything within a month, and it could be said to be almost impossible.
Concubine Yu was in trouble here, but on the third day, Long Yu finally made some progress.
Three days passed, and Long Yu's Demon Dust Heart devoured almost all of the rich spiritual energy in that area, which made Yu Fei heartbroken. This much spiritual energy would take a month to condense even for her small world, but Long Yu consumed it all in three days.
If this continues, her little world will soon dry up, so even if Long Yu wants to continue absorbing it will be impossible.
However, three days later, the second heart in Long Yu's body, the Heart of Mo Chen, finally underwent a sudden change.
Originally, the Heart of Demon Dust was like a bottomless pit devouring the spiritual energy of heaven and earth without any change. But three days later, after absorbing ten times the spiritual energy of heaven and earth that was raised to the second level by other martial arts secrets, its aura suddenly changed, and a creepy and strange feeling suddenly enveloped Long Yu's entire body!
An infinite and eerie aura surrounded Long Yu's entire body from the inside out, as if it was detecting and searching his body, but Long Yu did not feel any discomfort during this period.
After two hours, the eerie aura in Long Yu's body finally dissipated slowly, allowing him to breathe a sigh of relief.
"This is considered to be the second level... It doesn't seem to have changed much, but I believe that the speed of my physical body's regeneration is now many times faster than before. Even if my physical body is completely destroyed, I can still be completely reborn within a day."
Long Yu thought in his heart that he was of course very excited about this change in himself.
Before, it took him three days to regenerate his body with the help of the Demonic Dust Heart. Of course, if it was only part of the body, it wouldn't take that long. But now, the time required for his body to regenerate has been reduced by three times.
It used to be three days, now it’s only one day!
He had also used the Heart of Demonic Dust when he was duelling with the Third Prince of the Golden Dragon Demon Clan before, but at that time the Third Prince of the Golden Dragon Demon Clan did not completely destroy his physical body, so it only took him a little time to be completely reborn.
If it were now, his rebirth speed would be three times faster. In that case, the Third Prince would have even less chance, and Long Yu would be able to fight more easily.
"It's fine. With this status, and the Dragon Skeleton Ancient Tower has been completely repaired, even if we need to go to the battlefield legion to accept the mission, it will be fine."
Long Yu is quite confident in his current strength. What he needs to do next is to prepare to set off, complete the battlefield legion mission, and then obtain battlefield merits and exchange them for some training resources.
However, before leaving Concubine Yu's small world, Long Yu was entrusted by Concubine Yu to take her into the Nine Nether Prison Monument.
Long Yu was a little hesitant about this, because he was not sure whether others could enter the Nine Nether Prison Monument and be safe, but Yu Fei insisted that he take her in, so he had no way to refuse.
"Inside the Nine Nether Prison Monument, the revelation-level Nine Nether Divine Scripture is very dense. If you have not comprehended the origin-level Nine Nether Divine Scripture, you will definitely die if you rashly enter it. You will be corroded to the point of being completely destroyed."
Long Yu said to Yu Fei: "Senior Yu Fei has naturally comprehended the origin-level Nine Nether Divine Text, but this is only the basic condition for entering the inner space of the Nine Nether Prison Monument. As for whether there are other conditions, I don't know."
"We can only give it a try. It should be fine."
Concubine Yu said in a deep voice.
She knew that it was extremely dangerous to rush in like this, but for the sake of her trip to the alien ruins in half a month, she had to give it a try.
Because exploring alien relics is second only to intruding into the territories of other alien races, and if you are not careful, you will die in it!
Even if she can be strengthened a little bit, sometimes it can greatly increase her chances of survival in alien ruins. Not to mention, if she can comprehend 10% of the revelation-level Nine Nether Divine Text within a month like Long Yu, then her overall strength will be increased by at least twice!
For a warrior of Yu Fei's level, it is extremely difficult to improve her strength. Her innate magical powers have long been unable to be improved. The martial arts she has mastered have been cultivated to the realm of perfection, and her combat weapons have also been matched to at least the level of divine harmony...
It’s so difficult to improve!
Only in terms of the comprehension of the divine text, if she can transform the origin-level Nine Nether Divine Text that she has comprehended into the revelation-level Nine Nether Divine Text, then her strength improvement can be said to be as rapid as riding a rocket.
At the level of the Great Overlord, Yu Fei is now close to being invincible, and is probably only inferior to a super strong man like Master Baiyun who has one foot halfway into the god-like realm.
It is conceivable that if Concubine Yu really comprehended the revelation-level Nine Nether Divine Text, her overall strength would be enhanced to a terrifying level!
"Then, you should go to the Nine Netherworld first. The Nine Netherworld has not yet been completely occupied by the vortex power of the Death Star, so you can still stay there for a while."
Since Concubine Yu had made her decision, Long Yu could not persuade her, so he could only say in a deep voice: "I will first enter the inner space of the Nine Nether Prison Monument alone, and then slowly release you from the Nine Nether Realm. If there is any danger, you should go back immediately. If there is no problem, you can practice and comprehend the revelation-level Nine Nether Divine Text in it."
"Um."
Concubine Yu nodded and agreed to Long Yu's arrangement.
The expressions of the two men became extremely solemn, because they knew too little about the Nine Nether Prison Monument, and if they were not careful, it might lead to a disaster.
After letting Yu Fei enter the Nine Nether Realm, Long Yu did as he had done before and went directly into the inner space of the Nine Nether Prison Monument. He was once again surrounded by the rich revelation-level Nine Nether Divine Scripture!