As night fell, Shakal began to head toward Eden's room. In about ten minutes he was already outside his door. He rang the bell and waited for his new friend to open the door for him.

"Hello, I'm here." - Shakal said the moment the door opened.

"Get in." - Eden replied.

Shakal examined his friend's room. It seemed simple enough, a sofa in the middle, in front of the sofa was a small table that held a television. On the left side of the main entrance was the kitchen and bathroom and on the right side of Eden's room.

What surprised Shakal the most was the huge whiteboard, which was next to the television.

"Sit down, we'll start with the theory class right away." - Eden said, preparing his pens to start writing on the board.

Shakal took a seat on the sofa and without saying a word, he focused his attention on Eden.

"Well, first as I already explained the definition of the nen and aura, now I will explain the different parts.

The first principle is Ten, basically, it is the ability to prevent the aura from escaping from the body. Using this basic principle, the body gains more strength and a great ability to resist large forces applied to the user's body. In addition to that, it also has other uses such as if the user uses Ten for a long time in his life, his body will age more slowly compared to an ordinary person.

The second principle is Zetsu, it is an ability that allows the user to stop the aura that flows around his body. It is useful when you are spying on someone and you don't want that person to know that you are there. Without using Zetsu, the person you are spying on can find you only by the aura your body emits. That is why this technique is very important. With this principle it is necessary to be very careful since if you are in a state of Zetsu and you receive a nen attack, your body will have no defense and you will take damage as an ordinary person.

The third principle is Ren, it consists of increasing the flow of aura in the body. A lot of training is required to be able to maintain ren for long periods. I don't have much more to comment on this principle, so let's move on to the last of the basic four.

The fourth and last basic principle is the Hatsu, but I will explain it to you once I finish explaining the advanced principles.

The In is a more advanced zetsu technique, which allows you to hide your aura from other nen users, but unlike zetsu, you only hide your aura to the naked eye. It also takes a lot of practice to use it in the middle of combat.

The Gyo, is In's counterpart, which allows you to see the aura that the others are hiding. Gyo is a taller form of Ren. To achieve this, one must create a lot of aura and focus it on his eyes.

There are more advanced principles but these are the most important in my opinion. " - finished explaining Eden.

Shakal made a mental note of all the exact definitions and examples used by Eren.

"You still have to explain the hatsu to me." - Shakal said.

"I'll explain it to you right now, but first but first I need you to have your aura fully activated." - Eden said.

Shakal got up from the sofa and stood next to his friend. According to Eden's explanation, he would now use his aura to unlock the pores of Shakal's body and once he has them all unlocked he will be able to start practicing several of the basic principles.

After about four hours, after midnight, in a private room on the 185th floor, two men were in a meditation position.

Shakal in the four hours of practice after awakening his aura, managed to understand the concept of the first three basic principles. It could keep his aura in shape for a good amount of time before it runs out of power.

"I already have a basic command of these techniques, the one that costs me the most is Ren, but with more practice, I will be able to increase my aura more. Damn, with all this nen thing, I greatly increased my battle power. Now I just need to practice and master these techniques, prepare myself a good base and then begin to build my power little by little. " - Shakal thought while using zetsu to completely nullify his aura.

Eden was in shock, even him who came from a family related to the world of the nen, could not understand the terrifying speed with which Shakal learned to master the principles.

After several more hours of practice, there was little left for dawn..

"It is time for you to learn the last basic principle, the Hatsu" - said Eden.

Hearing his friend's words, Shakal rose from his meditation position and sat down on the sofa again.

"The hatsu is the application to use the nen, each person is born with a type of hatsu. There are six very different types of it, differentiating from each other. Each person is born with a type of hatsu. The main or birth Hatsu is the only one that you can master 100% of its power, but you can also train the other types. Now we will go to see the type of your hatsu. " Eden said as he prepared the test of the glass of water.

Curious about what Eden was doing, the boy got up from the sofa and walked to his side. Eden explained to him what the test of the water glass consisted of and informed him of the six types of nen.

Shakal used his aura on top of the glass. To the surprise of both of them, the water began to increase in volume and turn reddish. After a few moments, the color started to get darker, and the water started to flow more slowly.

Eden told him that he could stop his aura now.

"My friend, you are a Specialist. So you can dominate your birth type of Hatsu by 100%, then Manipulation and Conjuration follow with 80%, Emission, and Transmutation with 60% and finally Enhancement with 40%. You are the complete opposite of me since I am an Enhancement type. " Eden explained.

"Specialist huh!" Shakal thought. "Then how should I proceed to create nen skills?

Eden was left to think a bit about his friend's question.

"I honestly have no idea, Specialists are usually people with very rare abilities. Surely your aura tells you what your ability is. Also, remember what I explain to you about the conditions that you use on your nen. The more strong conditions used your hatsu will be stronger, but also more complicated to use. Never forget the rules of your conditions, especially being a Specialist, since you will depend a lot on your abilities. " - finished explaining Eden.

Seeing that Shakal was quietly reflecting on everything he learned tonight. Eden suggested that he take advantage of the two hours he has left before the sun rises to meditate and look for answers within himself.

The hours passed, the clock pointed to nine in the morning, Eden already left Shakal alone in his room.

Luckily, the hours of meditation helped him discover and expand his nen ability.

"Now i understand all of my skills." Shakal thought with a smile on his face.

Name: Divine Art - True Blood Emperor

Nen Type: Specialist

Abilities:

1- Blood Manipulation - The user can transform his aura into a substance similar to blood. When the aura takes the properties of blood, the user can manipulate it at will, creating objects or weapons. The more aura used on the created object, the more power gains the object in question.

2- Blood Extractor - The user can absorb the blood of his opponent, allowing him to copy his hatsu for a limited time. If the user transmits their blood through Blood Infection to an ally, they can obtain the copied hatsu. If the ally that receives the copied hatsu is a nen user, he can use it only for 5 minutes, instead of the ally is an ordinary person, if he manages to kill the owner of the copied hatsu in the following 5 minutes after receiving the hatsu, he will keep his ability permanently.

3- Blood Infection - The user can modify the blood of his target to provide him various illnesses or disadvantages.

Terms:

1- Blood objects created by the user with the Blood Manipulation technique will disappear instantly if user aura is no longer in contact with them.

2- The number of objects the user can create is limited to six. The user can sacrifice part of his blood to increase the number and improve its qualities.

3- To copy the enemy's hatsu, the user must absorb his blood or aura through a cut caused by his Blood Manipulation ability

3- Once the user copies a hatsu with their Blood Extractor ability, they will obtain the knowledge and experience of their original user. The copied skill will be in his possession for ten minutes. At that time he must decide whether he wants to keep it for himself or give it to an ally.

4- If the copied ability is given to an ordinary person, and he manages to kill the target in the specified time, all of his six categories of hatsu will be reduced by 15%.

5- Blood Infection can only be used in a cut made by the Blood Manipulation ability. The bigger the cut the stronger Blood Infection will become.