Back home, Lu Yun couldn't wait to open the books he bought and start studying.

Until there is no better option, these books are the best.

Looking at the records of these herbs, Lu Yun could be sure that he was the first to see them.

But it felt very familiar to him, as if he had already learned these herbs.

When he saw the descriptions of these herbs, he could imagine what these herbs looked like in his mind and knew their properties.

The only bad thing is that there are not many kinds of herbs, and as the bookstore owner said, there are not many kinds of herbs combined.

Even fewer prescriptions were recorded, only five, all of which were prescriptions for treating common ailments.

Among them, there is a recipe for blindly replenishing qi and blood, which is similar to the one Lu Yun chose for the first time refining the black pill, but it is different, and there are two flavors of medicine that are completely different.

Lu Yun fell into deep thought, could it be that his thoughts were wrong?

But it's not right, at least there are the same herbs, which means that the prescription still has some meaning.

Lu Yun thought for a moment and then figured out what the problem was, the basis of the pill and the pill were both herbs, and naturally there were similarities.

However, the pill is not a pill after all, there is still a difference between the two, otherwise the pill will not have a magical effect.

Despite this, Lu Yun still has gains.

Based on the prescription, he could deduce the efficacy of the refined elixir.

There are only five kinds of prescriptions, two of which are to replenish qi and blood, one is to nourish the spirit and nourish the spirit, and two are to heal wounds.

Lu Yun took out the herbs, and on the basis of the prescription, he chose the herbs with his senses and tried to refine the pill.

Under his summary, a total of three kinds of pills were summed up, and three types of pills were refined.

One is to strengthen the body, the other is to nourish the mind, and the other is to treat injuries.

He also gave names to the three types of pills, the one that strengthens the body is called the Fitness Pill, the one that nourishes the mind and nourishes the spirit is called the Healing Pill, and the one that treats injuries is called the Healing Pill.

After refining the three pills, Lu Yun thought of his little sister Lu Qiao'er and Chen Lao, and considered not letting them take the pills.

In the past, he thought that he was refining a fake pill, so naturally he wouldn't let them take it.

Later, although he knew that the fake pill had an effect, he didn't know the specific effect, and he didn't dare to let them take it.

Now that everything is straightened out, it is said that the two of them can also take the pill.

But he hesitated again, he really didn't know if there were any sequelae and harms of the pill.

After hesitating for a long time, Lu Yun still decided not to let the two of them take it first.

If there is serious harm, wouldn't it hurt the two of them?

He also considered whether to inform the two of them about the breathing method of absorbing aura, but finally shook his head.

The more time passes, the more you feel the preciousness of this breathing technique.

If more people know, the easier it will be to be exposed.

The main thing is that they are too weak now, and once they are noticed by those who have a heart, they will fall into a place of no return.

It's better to wait until he is strong in the future, and then teach it to the two.

I am indeed too weak, and even self-protection is a problem.

I don't know if my strength has improved when I absorb aura, and what grade I am now.

Thinking of this, he called Lu Qiao'er over and told him that he wanted to learn and try his strength.

Lu Qiao'er's eyes widened: "Brother, you have indeed studied hard and practiced very hard recently, but learning martial arts requires long-term persistence, and I am afraid it will be difficult to have an effect in such a short time."

Lu Yun was speechless, didn't he even look down on his own sister?

He didn't say anything more, and punched Lu Qiaoer directly, but Lu Qiaoer easily flashed it.

"Brother, you can't touch me at such a speed!"

Lu Yun didn't believe it, and kept punching and kicking with ordinary moves, but Lu Qiaoer easily dodged them one by one.

Despite this, Lu Yun was happy in his heart, he couldn't even hold a knife steadily before.

Although the current moves have not met Lu Qiaoer, they also have a good appearance, and they are vigorous.

Chen Lao also came to the courtyard and was surprised when he saw Lu Yun's fists and feet.

"In a short period of time, Childe has such strength, which really makes the old slave unbelievable."

Lu Yun stopped his attack: "Old Chen, what grade do I belong to now?"

Chen Lao smiled: "Judging from the strength of Gongzi's fists and feet, it should be the second or third grade in the mortal realm."

Lu Yun showed disappointment: "It's only the second or third grade in the mortal realm!"

Chen Lao shook his head: "Childe don't be disappointed, it will take at least two years for others to reach the second or third grade of the mortal realm."

"Childe can reach it in such a short time, which is enough to show that Childe is very talented in martial arts."

"As long as the son insists on practicing hard, even if he can't become a martial arts master in time, he will be a first-class master."

Lu Yun shook his head, although what Elder Chen said was good, but the second and third grades in the mortal realm were too low, and it was difficult to even protect himself.

And the higher you go, the more time-consuming, if you continue like this, even with the nourishment of aura, it will take several years for you to reach the realm of old age.

It seems that he still needs to find some shortcuts, and he thinks that the flying knife technique he has recently practiced hard can be taken by surprise, and may be able to be used as a killer weapon for self-preservation.

"Little sister, I'm using a throwing knife!"

Lu Yun pulled out a flying knife and squeezed it in his hand.

Lu Qiao'er showed disdain: "Brother, your flying knife can't touch me at all."

Lu Yun kicked at his feet, and the flying knife in his hand flew towards Lu Qiao'er in a tricky direction.

Lu Qiao'er turned slightly, and easily dodged it, and the flying knife hit the pillar directly at the door.

Lu Yun's eyes froze, and he directly pulled out two flying knives and threw them out one after the other.

The two flying knives blocked Lu Qiaoer's retreat, but Lu Qiaoer was too familiar with the art of flying knives.

Her feet swayed from side to side, perfectly avoiding the two throwing knives.

Lu Yun quickly pulled out the fourth flying knife and threw it out.

This time, his strength and speed increased significantly, and he was in front of Lu Qiao'er in an instant.

Lu Qiao'er's eyes froze, and she suddenly exerted force under her feet, and her body flew up directly, turning over in the air, and avoiding the flying knife again.

Lu Yun was deeply shocked, and he was almost a little bit, but unfortunately he still failed.

Lu Qiao'er was right, even if she used a flying knife, she wouldn't be able to touch her.

Looking at the discouraged Lu Yun, Lu Qiaoer chuckled and shook her head.

"Brother, your flying knife technique is already very solid, but the strength and accuracy need to be improved."

With that, she pulled out a throwing knife and threw it directly at the pillar in the doorway.

The flying knife was extremely fast, and it stabbed directly into the pillar with a thud.

Lu Yun's eyes froze, such speed and strength were indeed terrifying.

This is a flying knife for killing, unlike his flying knife, which can't even pierce a pillar, just like a wooden knife.

It seems that his flying knife technique still needs to be practiced, otherwise it will be difficult to be lethal.

"And the way you use the flying knife is not right, the flying knife is a hidden weapon, pay attention to surprise and concealment, you use the flying knife in such an open and honest way, it is normal to be dodged."

Lu Qiaoer added.

Lu Yun nodded: "What the little sister said is very reasonable, it seems that I still have to practice diligently."