Levi felt movement in the Book of Ten Thousand Laws.

He didn't directly call out the Book of Ten Thousand Laws. Although, after the battle, all the minions who surrounded before, whether it was the workers or the skeletons, had run away, but maybe some people didn't know where to hide and watch.

What's more, although the police station in the lower district seems to be a fictitious one, it is only 'like', not really non-existent. If you waste too much time here, things will get very troublesome when the police arrive.

Retrieve the vampire's heart he had just thrown away.

This time, he still had palpitations, and he didn't plan to touch the heart directly with his body until he knew what was going on.

He took off his jacket, wrapped his heart around it, and carefully picked it up again.

Well, nothing happened this time.

……

Leaving the scene of the crime, Levi did not immediately pay the commission, but returned to his residence.

First of all, I treated the wounds on my body, and the feeling of weakness was still there, but it was better than before.

After making sure that the injury wouldn't affect him too badly, and that he should be able to recover after a few days of rest, he couldn't wait to study the vampire's heart.

He first summoned the Book of Ten Thousand Laws, and the chapters skipped the Writing Wheel Eye, the Transfiguration Technique, and the Steel Slashing Flash, and came to the fourth page.

I saw that on the fourth page, which was supposed to be blank, some strange lines faintly appeared.

The lines were too light, too light, too vague, incomplete, and seemed to be impenetrable through a mysterious force.

No one could recognize what was written.

But Levi was familiar with this state - this was the process of the Book of Ten Thousand Laws revealing new abilities. It's just that in the past, this process always passed quickly, and in a few breaths, new words appeared on the blank page. But this time, it was the weakness of the absorption that led to the fact that the pages could not be directly generated.

Doesn't this mean that if you continue to inject your life force, you will be able to show new abilities?

After thinking for a moment, Levi didn't dare to inject his life force directly - he didn't want to experience the feeling of being sucked dry again, the first time he used the Book of Ten Thousand Laws, when he obtained the Writing Wheel Eye, there was no gene fluid as a base, and it was really fatal that he was not directly sucked to death.

Taking a deep breath, he picked up the vampire heart with his bare hands, while still maintaining the state of being summoned by the Book of Ten Thousand Laws.

Slowly, he saw blood oozing from the vampire's heart, falling into the palm of his hand and sucking into his skin.

This time, he carefully felt the changes in his body. He sensed that there was a force that seeped into his palms as the blood flowed into his chest, and then disappeared inexplicably. At the same time, the content of the fourth page of the Book of Ten Thousand Laws is constantly expanding and becoming clearer.

This process lasted about five minutes, and the vampire heart in Levi's hand had completely withered. The cold touch is completely gone, and in its place, it is as if I am holding a lump of mud that lacks moisture.

With a slight force, the whole heart was crushed in his hand.

Obviously, this vampire heart, which is so valuable that it can be used as the main material for the manufacture of C-class gene fluid, has completely lost its value.

In its place was the strange text that appeared on the fourth page of the Book of Ten Thousand Laws.

This surprised Levi - the heart of a vampire can actually unseal the pages of a book?

With a change of thought, he quickly thought of a possibility.

The Book of Ten Thousand Laws is essentially a book that uses life force as the source to unseal the pages. Moreover, this vitality must also be provided by Levi himself.

However, there is an essential difference between providing for him and having his life force.

For example, the use of gene fluid is equivalent to injecting the power of gene fluid into the Book of Ten Thousand Laws before it is absorbed by his body. In this process, his body was like a transit station, and his own vitality was not absorbed much by the Book of Ten Thousand Laws.

The heart of a vampire is the core of the flesh and blood of a monster like a vampire, and it is the main raw material for the manufacture of genetic fluid, which essentially contains a lot of vitality. In Levi's hands, this flesh and blood core seems to be able to be directly used by the Book of Ten Thousand Laws, just like gene fluid.

The vitality of this flesh and blood core is similar to that of the gene fluid of the same level, or even better.

After all, no matter how sophisticated the manufacturing process is, in the process of processing, it will always cause the loss of some life force. If you take into account the effect of adding some excipients in addition to the main materials in the gene fluid, the two can barely be equal.

But in any case, the life force contained in the fresh flesh and blood core must still be more.

Ordinary people must use gene fluid, and ordinary people don't have the ability to directly absorb the core of demon flesh and blood. Of course, neither can Levi.

But the Book of Ten Thousand Laws can. It seems that injecting the vitality of the monster's flesh and blood core into the Book of Ten Thousand Laws seems to be more cost-effective for him.

The price of the same level of unprocessed flesh core will be much cheaper than the same level of gene fluid.

However, the gene fluid still cannot be discarded for Levi. To improve the Book of Ten Thousand Laws, it doesn't matter if he uses the flesh core or the gene fluid, but if he wants to strengthen the physical body and develop the potential of the human body, he can only use the gene fluid. His body couldn't directly absorb the power of the flesh core like the Book of Ten Thousand Laws.

Anyway, that's great news. This means that Levi's strength improvement path has become more extensive!

In a perennial mood, Levi refocused his attention on the Book of Ten Thousand Laws, which had just absorbed his vitality.

The Book of Ten Thousand Laws had filled the fourth page of the flowery characters, and in Levi's eyes, it represented three options.

One is to upgrade the writing wheel eye; the second is to upgrade the disguise technique; The third is to gain a new ability called the Demon Left Hand.

The second item was decisively ruled out. As an auxiliary ability, the disguise technique has special value, but after all, it can't directly improve one's strength, and there are not many times when it can exert effects, and the precious ability improvement is not suitable for this.

So, you have to make a choice between the writing wheel eye and the demon's left hand.

Writing wheel eyes is undoubtedly a very powerful ability, and in the original anime, this thing can be called open.

However, the writing wheel eye that can really reach the level of open hanging power must at least be upgraded to a kaleidoscope to be reliable. The writing wheel eye before the kaleidoscope certainly has a strong visual detection ability, and there is a certain amount of illusion, as well as the ability to resist illusion, but in fact, the overall benefit is still not much beyond normal.

As for the new ability of the demon's left hand, it made Levi a little excited.

This is an ability that can demonize his left hand permanently. The Demon's Left Hand will greatly increase Levi's strength, and he will be able to display a number of special abilities that are unique to the Demon's Hand.

After looking at the reference map in the Book of Ten Thousand Laws, Levi recognized that this demon's hand was from the game "Devil May Cry 4". The power that belongs to Nero, one of the twin protagonists of Devil May Cry 4. It's just that the original game was supposed to be right-handed, but I don't know why it was changed to a left-handed hand in the Book of Ten Thousand Laws.

But that didn't dampen his interest.

After thinking about it for a moment, he still decided to choose the demon's hand.

The upgrade of this Book of Ten Thousand Laws and the new abilities that appear are a bit like a lottery in Levi's opinion. Fortunately, he is not a non-chief, so he is not too dark-faced. But looking at the second time when the pages were unsealed, there were two not very good abilities, and he was not a European emperor.

In this case, since you can unseal the fourth page, if a powerful ability appears, let's get it first.

As for the upgrade of the writing wheel, there is always a chance in the future.

After making his choice, he quickly felt the changes in his body.

A slight tingling sensation was felt in his left arm. He saw a blue glimmer surging beneath the skin from his elbow to his fingers.

Soon, the slight numbness turned into a burning sensation, and then a burning pain as if it had been scalded by boiling water.

At this point, Levi was able to endure it for the time being, but when the burning pain deepened further, as if the entire forearm, palm, and fingers were directly grilled on the flame, it was difficult for him to continue to bear it.

A bean-sized cold sweat appeared on his forehead, and the green tendons on his neck burst out, his face was flushed, and he gritted his teeth and tried his best to endure the pain.

However, this is not the end. The pain in his left hand continued to worsen until he couldn't bear it anymore, and it didn't stop!

Levi hugged his left hand and howled in pain! He felt like he was almost fainting from pain, but his consciousness was clearer than ever.

It wasn't until he felt that he might not be able to endure the pain and might die outright that the painful feeling gradually subsided.

He lay on the ground weakly for an hour before he regained some strength.

Raise your left arm, and it's completely different.