His legions are raging in the Tang plane.

However, Li Kuan didn't pay attention to them.

The Tang plane doesn't have any extraordinary abilities, if his army of the Great Chu State can't even handle this, he has to think about it, has he developed a loneliness over the years!

And the army was playing with a cane, and Li Kuan was naturally not idle.

While watching the refining of Sequence 0 - Ninja Potion, he also studied a ninjutsu, a ninjutsu that was very important in his future blueprint.

Shadow clone!

This ninjutsu was originally invented by the second generation of Konoha and a thousand hands.

Through chakra, it is possible to create a clone with a physical body, which has a consciousness independent of the caster's body and a certain ability to resist hits, and the memories and experiences of the doppelganger will return to the main body after being disarmed.

In combat, once the shadow clone is separated, it is equivalent to two to one, three to one, or even more to one.

Even if it is a doppelganger, Chakra will be assigned to two people, and it will be lower than the enemy, but in the case of two against one, three against one, the advantage is still very great!

It can be said that it is of great help for battles!

Combat is one thing, though.

In Li Kuan's view, the most perverted technique of shadow clone is not used in battle, but in learning and training.

For example, if you divide a doppelganger, add the ontology, the learning efficiency will be X2, and the learning efficiency will be X3!

Used in exercise, divided into several clones, each exercise spell, ninjutsu, physical arts, etc., each exercise, is equivalent to several exercises.

Separate one, plus the body, and exercise together once, which is equivalent to exercising twice.

Divide out two and exercise three times!

Divide out three and exercise four times!

Of course, the actual learning efficiency and the number of exercises may be a little worse.

After all, doppelgangers learn at the same time, and there may be duplication of knowledge learned.

And if you exercise, you still have to see how many chakras, even if you practice physical arts, once you use too much force, you may beat the clone back.

But on the whole, it can increase the learning efficiency and the number of exercises, which is quite terrifying.

Take two people with similar IQs as an example!

It takes ten days to learn a book at a time.

And the other one, because of the doppelganger, may take five days, four days, three days, or even two days, and one day will be fine.

As the days accumulate, the two sides will widen the gap between heaven and earth.

However, this is still second to Li Kuan.

He has a state of control, and whatever he wants to learn, he just needs to put all the books in a plane that he controls, and then use the state of control, he can learn everything in an instant, and he may even push through the old and new, and he will learn things and deduce more advanced things.

For Li Kuan, the most important thing is that the shadow clone can solve the one thing he has always had the most headache.

Communication!

In the past, communications have always been Li Kuan's weakness.

If it's from the same plane, it's okay, there is a telegram, basically no matter where Li Kuan is, the news is still easy to reach him.

But if you have a different plane, the problem will be troublesome!

For example, if he is in the Datang plane, there is something suddenly in the Harry Potter plane, and he will not know about it for a while, and there is no way to deal with it, because he can have no interdimensional communication in his hands!

It's okay if it's not urgent, but once it's urgent, it's really a headache.

But it's not the same with shadow clones!

Although there is still no way to solve the communication problem, if there is something urgent, he can handle it... After all, the doppelganger has the same consciousness as the ontology!

Straight to the point!

If you want to study shadow clones, it can be described as extremely difficult without chakra.

Simply!

He already had a way to deal with it... Take control.

Now the time of his control state has not fully recovered, only half of it.

But this is definitely enough for the shadow clone.

After all, a shadow clone is just a B-level ninjutsu (multiple shadow clones are A-rank).

And Li Kuan is not 0 basic deduction, he has learned all the ninjutsu left by the original Wind Country.

Based on these, the deduction is still very fast.

Thinking of this, Li Kuan immediately opened the door of the plane, came to the plane of eternal night, and began to devote himself to research.

And then!

Just for a second.

Based on the doppelganger technique, the deduced shadow doppelganger technique was freshly baked in his mind.

"It turns out that the shadow clone is like this! On the most basic doppelganger technique, add the Yin attribute chakra, and you can make the doppelganger become a materialized doppelganger! ”

"And because the yin attribute chakra itself is spiritual energy, this can bring the memory of the clone back to the body!" Li Kuan felt the knowledge of the shadow clone in his mind, and said suddenly.

---

Another month has passed!

Harry Potter plane!

Castle!

In the laboratory.

"Gollum!"

Li Kuan looked at the boiling potion in front of him, and his face couldn't help but show a look of joy.

After a lot of time, the first dose of Sequence 0 - Ninja Potion was about to be completed.

And once this potion is completed, Li Kuan will be able to possess the chakra, and then learn the various methods of ninjas.

Thinking of this, Li Kuan suddenly felt a little excited.

But soon, he pushed his excitement down.

It's not the time to get excited, the potion is still a little bit close, and if it's too excited, and something goes wrong that shouldn't be made, then it's really a cry without tears.

After all, refining this potion is not easy.

"Calm down, calm down, refine the potion first!" Li Kuan exhaled deeply and focused his attention on the boiling potion.

About half an hour later!

In the boiling cauldron, the potion gradually turned light blue.

"It's now!"

A gleam flashed in Li Kuan's eyes, and he picked up a piece of material on the operating table on the side, and put it into the boiling potion without hurrying.

A moment later!

The material melted away in the boiling potion, and the potion inside the cauldron changed from light blue to a light blue with a hint of transparency.

"Perfect!"

Li Kuan's eyes lit up, and he hurriedly stretched out his hand, endured the heat of the crucible, and poured the hot potion into a potion bottle.

"It's finally done!" Li Kuan looked at the light blue potion in the potion bottle, and breathed a sigh of relief in his heart.

Immediately, he muttered, "So... The next step is to take the potion! ”

After saying that, Li Kuan, who was already a little impatient, didn't care about anything else, and took the potion directly on the spot.

"Gollum!"

With the sound of swallowing, a bottle of potion entered Li Kuan's stomach.

The next moment after taking the potion!

Li Kuan suddenly felt a cool feeling all over his body, as if he had eaten mints.

And this feeling of coolness from the beginning of the whole body, slowly rolled into Li Kuan's body, skin, five organs, and finally only the dantian can feel the coolness.

However, after about ten minutes, the coolness was completely gone.

"It seems to have changed, and it seems that nothing has changed!" Li Kuan looked himself up and down and muttered.

But at this time, he knew in his heart that he had indeed changed.

Now he can refine the chakra!

Thinking of this, Li Kuan subconsciously urged the chakra extraction technique in his memory.

Suddenly!

The first wisp of chakra appeared in Li Kuan's meridians.