Although Li Feng immediately wanted to promote the last insect to Demon, thinking of its huge body size after promotion, it was indeed difficult to bring into the Amazon jungle, so he had to put it on hold for the time being.

  After calculating the remaining blood essence, upgrading to level 2 Blood Crystal cost one million, and after upgrading to Bee, it cost one hundred and ten million.

  There are still about 62 million, this blood essence is said to be huge, it's indeed quite huge, at least it can be used to raise non-insectoid high-level creatures, and it has a great deal of potential.

  However, if you want to raise the insect to level 6, it's not enough, even with six feedings, and there is still a big gap, even if you give the earth-level ancient corpse worm one feeding.

  It seems that the collection speed of blood essence is still too slow, Li Feng can only pin his hopes on the white ant's rear base in the Amazon jungle hunting range to bring greater improvement.

  Six hundred thousand blood essence, Li Feng still had two kinds of biological abilities that he hadn't cultivated yet. One was the "Rapid Recovery" trait from the cockroach, and the other was the combat instinct from the praying mantis.

  Nothing more was said, now that he had a large amount of Blood Essence, Li Feng decisively called back the Cockroach King and the Mantis King.

  For the first time in sixth grade, Li Feng was full of expectations.

  "Come on, I'll give you the sixth feeding." As soon as Li Feng's voice fell, adult fist-sized cockroaches and baby-sized mantises scurried over one after another.

  "Six feedings."

  "Will you feed the 5th-tier Cockroach Servant and the 5th-tier Mantis Servant for their sixth feeding, consuming 9,375 units of Blood Essence and 93,750 units of Blood Essence respectively?"

  "Yes." Li Feng looked at the amount of blood essence required by each of them and couldn't help but secretly sigh, the cost of raising larger creatures was really too high.

  A mantis and a cockroach, both raised for the sixth time, but the cost of the former is exactly ten times that of the latter.

  As Li Feng confirmed once again, in the next moment, a large amount of blood essence began to surge into the bodies of the fifth-stage cockroach and the fifth-stage mantis.

  Or it was because of the promotion to the second-order blood crystal, but for some reason, Li Feng secretly felt that this time's blood essence nourishment period was not as long as he had imagined.

  It's only been five minutes, and the fifth-order cockroach has successfully evolved from its original fist-sized body to a super-large cockroach the size of a mouse. Damn, a cockroach as big as a mouse, Li Feng had never seen one before.

  Of course, the benefits are also clearly visible, and after the fifth stage, every growth of one stage has a huge gain.

  Sixth-order cockroach, the unification value has been increased to six thousand, and the body is becoming more robust. The biggest change is that after checking its own rapid recovery specialty, a clear change has appeared.

  "Quick recovery" became "High-speed recovery".

  From the original physical strength, endurance and spirit three items five times recovery reached six times, further making their own physique more tenacious, indeed is Xiaochang possession, vitality tenacious to extreme.

  However, Li Feng did not stop feeding the cockroaches at this point.

  Seventh feeding...

  Consumed 46875 units of blood essence, five minutes later, the sixth-order cockroach was promoted to seventh-order, and its body size increased from 20 cm to 30 cm, catching up with the fifth-order mantis.

  The unity value is seven thousand, and the multiplier of Li Feng's demon talent also increases from six times to seven times. The name of the "High-Speed Recovery" demon talent is also changed to "Rapid Recovery".

  Eighth feeding, unprecedented, Li Feng has gone crazy, the sky is big and the earth is big, but his own life is the most important, this is his reliable lifesaving specialty, now that he has obtained a lot of blood essence, how can he not upgrade.

  Upgrade, upgrade and upgrade...

  Eighth Cockroach Breeding, consumed 234375 units of Blood Essence... Super Speed Recovery.

  Ninth Cockroach Breeding Consumed 1,171,875 units of Blood Essence... Super Fast Recovery.

  Tenth Cockroach Breeding, consumed 5859375 units of Blood Essence...

  However, Li Feng suddenly discovered that his blood essence was insufficient, and just as he was secretly regretting not being able to nurture the tenth stage in one go.

  "Due to your cumulative blood essence collection reaching 5 million, you have obtained the permission to overdraft 1.5 million blood essences. Do you want to overdraft blood essences for ten feedings? If the overdrafted blood essences are not repaid within a month, the debt will double every month."

  The sudden reminder tone in his mind made Li Feng stunned, and he actually still had overdrafts. He didn't say anything and decided to top up first.

  My brother still has quite a bit of money now.

  Tenth Cockroach Breeding, consumed 5859375 units of Blood Essence... Stubborn.

  Finally!

  At Li Feng's heavy cost in blood, he successfully promoted the first demon to reach the tenth rank, with every five ranks being one level, which means that he now has a second-level demon.

  At this moment, the 10th rank 2nd level Demon Cockroach has undergone an abnormal growth transformation.

  From the fifth stage, only fist-sized, instantly evolved into a giant creature over one meter in length, with a sturdy and majestic physique like an ox.

  This is going against heaven.

  The 2nd-level demon's cockroach, not only inherited the original rapid recovery specialty, but also transformed the 2nd-level demon's specialty "tenacity" into a tenfold comprehensive physical recovery, and also gained a new property, which is "shared vision".

  "Shared Field of View?" Li Feng was surprised, and upon closer inspection, he found that this Shared Field of View wasn't a unique ability, but rather a common one shared by all 2nd-level summoners.

  The rough meaning is that this master can actually obtain a shared field of vision with his 2nd-level summoned creature.

  This ability is practical!

  At the same time, the fifth-order mantis that had been absorbing blood essence finally succeeded in advancing to a sixth-order demon at this moment.

  Sixth-stage mantis, originally 30cm in length, grew to 40cm, but the abnormal growth potential does not seem to be great.

  The command value also rose to 60, and the potential for growth in calling out to its kind was not great either. However, the effect of the demon's special ability it brought to Li Feng was quite practical.

  From the original combat instinct primary, upgraded to intermediate.

  It has been upgraded to a whole new level, which also means that Li Feng's combat skills have become even stronger.

  Seventh feeding of the mantis, a total of nearly 470,000 blood essence is required. However, Li Feng suddenly discovered that his previous 6,300,000 blood essence had already been consumed to the bottom.

  "I'm sweating..." Li Feng wiped his sweat, more than 60 million blood essence was really not worth spending, and it was completely wasted in just this short period of time.

  However, he successfully raised a second-level demon and learned that the second-level demon had the ability to share vision, which was his greatest gain.

  Will every time a demon is promoted to a higher level, an unknown ability will appear?

  At this point, Li Feng almost wanted to spend all his money buying earthworms to try out the third-level Magic Summoning spell and see what new changes it would bring.

  But this impulse can only be thought about, in fact, this impulse is simply like a bottomless pit.

  The higher the upgrade, the more massive the blood essence required, increasing exponentially, and it's really heartbreaking. Now he can only eat one mouthful at a time.

  Tenfold recovery of physical strength "tenacity", intermediate combat instincts; this is Li Feng's greatest strength boost tonight.

  To know this is different from the queen bee "speed" can only explode once a day, but it is used infinitely at any time.

  "Haha... If I continue to feed my summoning demon like this, won't I eventually become a superman?"

  After feeding was finished, Li Feng made his two Benming Shimo retreat and ordered them to hide themselves in the nearby mountain ridge, lest they be discovered by humans.

  Although the 2nd-level demon locust has grown to a sturdy body like an ox, once it alarms humans and attracts troops to capture it, under gunfire and ammunition, it's estimated that it can only be used as a small white mouse.

  So Li Feng didn't want his one and only 2nd-level demonic servant that he spent six million to get to end like this.

  He dismissed two of his contracted demons and, feeling quite pleased with himself, lay down on the soft bed in his quarters.

  He closed his eyes and connected with the second-order cockroach, hmm, he named the second-order cockroach Xiao Zhan, as he connected to the shared visual field ability.

  In an instant, his eyes turned black and a different night vision scene appeared in his mind.

  All I saw was in the dark of night, a small cockroach moving rapidly, its speed was so fast that it was frightening, fast, really too fast.

  The cockroach's crawling speed was originally very fast. After being fed ten times, the small cockroach had completely transformed into a monstrous existence at this moment.

  At night, the trees and bushes in the mountain forest kept retreating rapidly, and in just a short while, Xiaoluo had already left the sixth-order mantis flying low in the air far behind.

  Not long after, it dived back into its original mountain ridge and started digging holes.

  "Dig dig dig..." Just like a knife's blade, it continuously scraped away at the soil.

  Li Feng stared in amazement as within just two minutes, the little insect had dug out a hole entrance half a person's height.

  After another ten or so minutes, what was originally only a shallow cave had already been dug into dozens of meters in depth.

  The terrain of the cave is slightly inclined upwards, perhaps due to biological instincts, caves that incline upwards can avoid backflow of rainwater.

  Dozens of meters deep, just when Li Feng thought this guy was almost done digging, who knew that this was only the beginning.

  Do you want to dig again?

  Cockroaches are still cockroaches, and that physical strength seems to be endless. Damn it, this hole is dug too deep. After dozens of meters, the direction of digging turned right again, and another minute passed. A spacious cave with an area of tens of square meters was finally excavated.

  However, the little mole continued digging in the other direction, this time for over thirty meters.

  A loud "boom" echoed, and it turned out that this guy had also dug through the other side of the mountain, with two cave entrances, one entrance and one exit, really cautious.

  What surprised Li Feng the most was that the mantis, which had been raised to the sixth level, also fell from low altitude and crawled into the hole that Xiaozhang had just dug without hesitation.

  "I'm going..." It turned out that these two brothers were planning to live together. Weren't mantises supposed to stay on trees?

  Li Feng couldn't help but spit out his rice, this is unscientific.

  But he himself could hardly think that it was precisely because of his request to carefully hide the command that Xiao Si also simply moved in.

  "What a pity." With shared vision, it's indeed more convenient and fun, but the little mantis is just a land insect, can't go to sea.

  Li Feng had been browsing the internet since he was in school, and when the main character obtained a biological creature, it turned out to be some kind of electric eel, sea snake, or great white shark, as long as they dove into the ocean.

  I wiped it clean and found treasures from a sunken ship at the bottom of the sea, including silver ingots, gold yuanbao, and antique Qinghua vases. Everything was there as expected.

  Why can't brother just get one? Hmm, wait a minute...

  It seems that I can handle it myself now. Previously, when I upgraded to the 2nd level of Blood Crystal Space, wasn't there a limit on the number of beast units that could be raised?

  It's unclear whether beasts include marine life or not.

  Suddenly, Li Feng remembered this matter, and for a moment, the small cockroach that had just been promoted to second-level was immediately thrown aside by him.

  What's good about digging mountain caves? Besides letting little ants dig ancient tombs, can digging mountain caves make you rich?

  Sending dead people's money is a matter of heavenly fate, if it wasn't necessary, Li Feng wouldn't want to do it. Who knew that later on, having sons without buttocks would go explore the wonderful and rich ocean, this is truly the golden path.

  At this point, Li Feng couldn't help but feel as if he had been enlightened by the Buddha's light, and he suddenly understood!

  As expected, having watched too many online fantasies, his mind was indeed brilliant, and unintentionally, he actually came up with a dazzling golden path.

  No way, I have to raise a marine organism that can not only search for treasure at the bottom of the sea but also become an overlord of the ocean.

  This is more promising than messing with insects on land, and advancing by land, sea, and air, this is a truly against-the-heavens rhythm.

  ……

  P.S: The next chapter has more words!

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