In any case, Du Fan is a scientist and a person of tenacity and perseverance, but he will not give up easily.

After a short rest, I started to meditate again with my eyes closed.

In this way, for the next three days, Du Fan spent time in meditation and sensing the aura of heaven and earth.

On this day, Du Fan, who was sitting cross-legged on the wooden bed, opened his eyes again, still full of disappointment, but in the next moment, his eyes suddenly brightened, as if he remembered something important.

Du Fan touched his robe with one hand, and suddenly a small emerald green bottle appeared in his hand, and the contents inside were the ten Qi Refining Pills that he had purchased at the Alchemy Room Office that day.

"I've never heard of the situation of starting to take the cultivation enhancement pill before becoming a cultivator, and I don't know if there will be a problem if I take it now, no matter what, if it goes on like this, I'm afraid that it will never reach the quasi-qi refining period. ”

Du Fan's heart was horizontal, his eyes showed a decisive color, and he opened the green vial, and suddenly a fragrant smell came out of the bottle, instantly filling the entire room.

Upon hearing this, Du Fanton felt refreshed, and even the slight fatigue caused by meditation before had dissipated a lot, and he poured out a Qi Refining Pill without hesitation.

This Dan is half an inch in size, milky white all over, and exudes a layer of white halo on the surface of the Dan, and when you take it in your hand, a cool meaning goes down Du Fan's palm into the flesh, which is very refreshing.

His eyes flashed, he raised his palm, and instantly sent the pill into his mouth. This pill turned into a cool breath in the mouth, sliding down the intestines into the stomach, and the place where it passed was extremely comfortable.

After a while, this cool air spread instantly, and a huge force exploded from the center of the air mass, and the violent turbulence filled Du Fan's internal organs in an instant, making Du Fan, who was still extremely comfortable just now, let out a terrible scream in an instant, his face was bruised, and cold sweat appeared in an instant.

Du Fan only felt that his whole body was about to burst, and a feeling of extreme pain stimulated every nerve of Du Fan, it was really better to live than to die, at this moment he had a feeling that maybe he was dead, and he could feel better.

He only lasted a few breaths, and then with a muffled grunt, he passed out.

When he woke up, he felt weak, his clothes were covered with sweat, and his whole body was in pain. He barely got up, and this single action suddenly made his eyes black, and he almost passed out again.

Struggling out of the hut, he found it dark outside, presumably in the middle of the night. After observing a spiritual grass for a while, he was sure that he had only been in a coma for a long time, and he couldn't help but breathe a sigh of relief.

After walking around the medicine garden for a long time, he felt that his physical condition had improved a little, and then he returned to the house again.

After sitting down cross-legged, he silently recited the small five elements in his heart, and after a while, a sigh came from Du Fan's mouth.

"I still can't sense the fluctuations of the aura of heaven and earth. ”

Du Fan's face showed bitterness, he was very helpless about his qualifications, and after his eyes were blank for a moment, he burst out again, poured out a Qi Refining Pill, and swallowed it in one gulp.

A moment later, after another terrible scream, Du Fan fell into a coma.

When he woke up again, it was already the early morning of the next day, Du Fan was even more tired this time in addition to the pain all over his body, and the feeling that his whole body was almost bursting with the qi in his body made him palpitate, at this time, a strong feeling of hunger hit him instantly, and he had to eat something first.

When Du Fan climbed onto the wooden bed again, a third Qi Refining Pill suddenly appeared in his hand......

A week later, Du Fan was already extremely weak, his eyes were red and bloodshot, and his spirit was sluggish, but his expression was even more crazy, and his hair was scattered, like a demon from hell.

"Haha......" A burst of laughter came out of Du Fan's mouth, his voice was hoarse, like a half-dead old man, and at the same time, the tone was extremely sharp, which was also mixed with a sound similar to bone rubbing, which made people feel chilling.

"Finally broke through! After taking the seventh Qi Refining Pill, I finally advanced to the quasi-Qi Refining Period, and I can finally sense the fluctuations of the water aura between heaven and earth!"

Du Fan's whole body was trembling and twisting, which was a sign that his body was on the verge of collapse after suffering great pain, but he didn't care about it, he was already numb to this heart-wrenching pain, and at this time, he looked like crazy, as if he was in a desperate situation.

It is not possible to say that there are no people who use such methods to break through the quasi-qi refining period, but there is definitely no one like him who has taken the Qi Refining Pill seven times in a row, not to mention whether the Qi Refining Pill can bear the cost of the Qi Refining Pill for mortals who have not yet reached the quasi-Qi refining period. Even the risks and the great pain it brings are not something that ordinary people can bear.

This is not only a huge pain that makes people almost want to collapse, but the most important thing is that the huge momentum generated by the explosion of this cultivation pill in the mortal body will make the user explode and die if he is not careful. After a mortal consumes a Qi Refining Pill, the chance of dying from an explosion is about fifty percent. But Du Fan took it seven times, which cannot but say that his luck was not ordinarily good.

Of course, most of the other people don't have the opportunity to take the Qi Refining Pill seven times as a mortal, and those with spiritual roots, even if their qualifications are extremely bad, they can take the Qi Refining Pill once or twice at most, and if they don't die, they can break through to the quasi-Qi refining stage. It can be seen that Du Fan's cultivation qualifications are not ordinarily poor.

A day later, Du Fan finally regained his composure, drilled into an independent pond in the medicine garden, cleaned the sweat stains that had been soaked in his body for a week, changed into a set of clean clothes, continued to sit cross-legged on the bed, and began to breathe, at this moment he could already absorb the water aura he sensed in his body, but his absorption speed was so slow that people were desperate, and the matter of using the aura to open up the meridians was even more distant for him.

Half a day later, Du Fan opened his eyes, and his face was a little ugly.

"Why are the meridians in my body so shriveled and abnormal, it is difficult to open through the spiritual energy of heaven and earth as mentioned in the exercises. ”

He was very helpless about his own situation, and then thought of the Qi Refining Pill again.

"I have now advanced to quasi-qi refining, presumably it will be no big problem to take the qi refining pill again, but this qi refining pill is definitely not cheap, with my qualifications, I don't know how many pills of this pill to take to open up the meridians of the whole body, and then communicate the innate essence in the body to generate mana. ”

Du Fan got up and got out of bed, and after understanding his own situation, he was not in a hurry to cultivate.

After walking to the medicine garden and inspecting it, he returned to the hut again and began to fiddle with the pile of miscellaneous items he had purchased from Sang Cheng. The package containing the sundries was poured on the wooden table, and many bottles and cans of things suddenly rolled down, including bowls and basins, and the materials and shapes were very mixed.

Looking at the pile of items on the wooden table, Du Fan groaned for a while, and then began to sort them out.

"This thin crystal tube can be used as a substitute for a test tube, the container for the liquid is good, there is no problem with the heating instrument, and the instrument for filtration and separation is a little troublesome, but it can barely be replaced with this ornament. Du Fan muttered to himself, and at the same time kept moving in his hands, and finally used the wire to fold into a set of strange-shaped shelves, and after some fixation, most of the bottles and cans he bought were hung on the wire racks, and most of the bottles and cans were connected to each other by rubber pipes.

Du Fan walked out of the house, and after a while, he walked in with an iron pot, and there was water in the iron, and in the water was the black gluttonous hair, and he put it on the ground and went out again. When he came in again, he had a large amount of masonry in his hand.

Soon after, Du Fan built a simple stove in the house using bricks and stones, and after a while he took a large amount of firewood, put it into the stove, lit the fire, and then placed the iron pot with gluttonous sweat on the fire.

He turned around and drew a thicker leather tube, one end of which was placed in the water of the iron pot, and the other end was inserted into a rather large bottle, which was also held in place by an iron frame, and the bottle was closed except for the thick leather tube, and the rest of the bottle was closed.

Then Du Fan worked on the iron shelf for a while, and lit an oil lamp under a strange-looking vessel to make it burn, and after a stick of incense, he breathed a sigh of relief.

"That's all I can do with my current means, but I think I can barely use it. ”

If the people of the earth saw this iron frame and the contents on it, they would definitely be surprised, because this is a basic set of chemical experimental instruments.

"After boiling, gluttonous sweat and hair water is injected into the vessel, and then filtered, separated, distilled, crystallized and other processes, and finally it should be able to refine gluttonous water powder, and its purity is naturally far above that of gluttonous sweat and hair water. ”

Du Fan's expression showed expectation.