More than a month later.

At this moment, there were faint bright silver clouds and dark silver clouds on the outer periphery of Qin Yu's body, constantly absorbing the power of the stars, and Qin Yu's body was already like a jade diamond after more than a month of refining the power of the stars.

In the lower dantian and the middle dantian.

Each has a perfect nebula in it, and these two nebulae are composed of silver particles, and these silver particles are distributed everywhere in the dantian, and they are the essence formed by absorbing the power of a large number of stars. At the same time, it is also the source of energy after Qin Yu.

In the center of the nebula, there is a flame, the lower dantian is a faint bright cyan flame, and the middle dantian is a faint dark cyan flame.

Qin Yu, who was originally cross-legged, opened his eyes, he stopped cultivating, and the bright silver and dark silver energy immediately poured into his body, and the nebula was still affected by the power of the dantian, slowly rotating, just making the nebula's energy more and more refined.

"Pale cyan flame, sure enough, the power of the star true fire obtained by cultivating "Star Change" is much stronger than that of Samadhi true fire. Qin Yu stood up suddenly.

Every cultivator will have true fire in his body, and immortal cultivators are generally called 'Samadhi True Fire', demon cultivators are generally called 'Demon True Fire', and demon cultivators generally become 'Demon True Fire'. And Xingchen Change is neither cultivating immortals and demons, nor cultivating demons, and the true fire in the body is named 'Xingchen True Fire'.

Qin Yu stood up and walked to the door of the martial arts training hall, and the door suddenly opened automatically.

A black shadow flashed like lightning and appeared directly in front of Qin Yu, it was Xiao Hei. Xiao Hei has been alone for more than a month, he has been with Qin Yu since he was born, and he and Qin Yu have never been separated for so long. Now suddenly, I haven't seen Qin Yu for a month, and Xiao Hei's heart is full of misses. Xiao Hei has no relatives, and in his heart, Qin Yu is his only relative.

Xiao Hei chirped a few times, his eyes full of joy.

Qin Yu smiled and said, "Xiao Hei, follow me." ”

Xiao Hei chirped, as if he was confused. Qin Yu walked directly in the other direction, Xiao Hei also followed behind Qin Yu, and Qin Yu walked directly towards the refining room in the first floor of the Thunder Mountain Residence.

The door to the refining room opens automatically.

Xiao Hei completely woke up at this moment, and he understood that the eldest brother was going to refine the weapon.

"For the past few months, I have been studying alchemy, refining weapons, and formations. But because of the lack of strength, there is no way to test. Now that I've reached the Jindan realm, it's time to test it. Qin Yu thought to himself.

"Xiao Hei, I'm refining pills here, if you're fine, you can take a look here, if you want to forage for food, just go, come back after foraging, anyway, alchemy is not cultivation, there is no disturbance. Qin Yu knew that Xiao Hei had been very lonely this month, and he didn't want to leave Xiao Hei alone when they first met.

Xiao Hei screamed a few times, as if to say: I know.

Qin Yu thought back to the alchemy knowledge he had learned before. He planned to refine some second-grade Qi Benefiting Pills to test them first.

The Erpin Yiqi Pill is a kind of elixir used to cultivate for the monks of the foundation building period, that is, the innate masters. Moreover, this kind of elixir requires few medicinal materials and is simple to refine, so it is very suitable for Qin Yu to conduct an alchemy experiment for the first time.

There are only three kinds of medicinal materials for refining the second-grade Yiqi Pill, the blue spirit flower, the black flavor fruit, and the green silk grass. These three herbs can be found in the wilderness. Qin Yu had already collected a lot before.

Qin Yu took out the three herbs and put them aside, and then a pale cyan flame flew out of Qin Yu's body and floated into the gossip furnace, and his eyes suddenly burst into flames.

"Tianmen, gossip, positive!"

Qin Yu's hands each emitted a few psychedelic light silver star powers, shooting into several small holes in the Bagua Furnace, and suddenly the Bagua Furnace lit up, and the Dao light shot out, forming a mysterious talisman, and the temperature of the bright pale cyan fire eye increased in vain.

However, Qin Yu knew that alchemy was not the higher the temperature, the better, and the refining of each medicinal material required a different temperature.

Therefore, Qin Yu did not immediately refine the pill, but began to control the flame, and he had to be able to skillfully control the temperature of the flame before he could start alchemy.

Qin Yu worked hard to lower the temperature of the Xingchen True Fire. It's just that Qin Yu controlled it for the first time, and it was not easy. After several efforts, it was in vain. So, Qin Yu stopped and began to reflect on the reasons for these failures.

In the end, Qin Yu had to admit that Xingchen True Fire was too domineering. It is more powerful than the samadhi fire, but it is also more difficult to control than the samadhi fire.

Although the Star True Fire is one and the same, it can be controlled through the formation to turn the Star True Fire into the Sun True Fire and the Taiyin True Fire. But the true fire of the stars is either all the blazing heat of the true fire of the sun, and we are all the cold flames of the true fire of the Taiyin. Even if Qin Yu's two souls went into battle together, they didn't grasp the trick.

"What should I do?" Qin Yu sighed helplessly.

After a moment of decadence, Qin Yu regained his spirits, he was not a person who admitted defeat. "Isn't it just the real fire of the stars? I don't believe I can't control you. ”

Qin Yu once again lured the Xingchen True Fire out of his body, and then controlled it to float into the Bagua Furnace. Only this time, Qin Yu Ghost sent the dark cyan star true fire in the middle dantian into the gossip furnace.

"Tianmen, gossip, positive!"

With the power of Qin Yu Xingchen, it shot into several small holes in the Bagua Furnace, and suddenly the Bagua Furnace lit up again. It's just that this time the temperature in the gossip furnace is not rising, but dropping rapidly.

"What's the matter? I didn't transform into Taiyin True Fire?" Qin Yu was taken aback. Looking at the Xingchen True Fire in the Bagua Furnace, "Why is the Xingchen True Fire so dim this time?" I remember that the flame just now was bright?"

Qin Yu probed his consciousness into his body and finally discovered the reason. It turned out that the true fire of the stars that he had just thrown into the gossip furnace was the flame in the lower dantian. And now the flame he threw into the gossip furnace was indeed the flame produced by the dantian.

"Could it be that the flame produced by the lower dantian has a higher temperature, while the flame produced by the middle dantian has a lower temperature?" Qin Yu guessed. "But why is that?"

"It's certainly not a matter of the exercises. My two dantians are both cultivating star transformation. The same exercise has different results, and it has nothing to do with the exercise. Qin Yuwu shook his head, "Is it because of the problem of the dantian? Could it be that this is the difference between the middle dantian and the lower dantian?" Qin Yu's eyes flickered.

"Maybe it's really the dantian reason. But now it's been better for me. Qin Yu smiled.

Immediately, Qin Yu threw the two kinds of star true fire into the gossip furnace at the same time.

"Tianmen, gossip, positive. ”

As the power of the stars in Qin Yu's hand entered the Bagua Furnace, the Bagua Furnace lit up again. Moreover, this time the temperature is quite soft. Neither as hot as the first nor as cold as the second.

Then Qin Yu began the experiment. Sure enough, as long as he adjusted the size of the two flames, he could adjust the temperature of the flames. It's just that he has just started, and he is not so handy at adjusting the temperature.

Subsequently, Qin Yu began to train in earnest, controlling the flames and adjusting the temperature little by little. Slowly becoming more and more proficient.

After a few days, Qin Yu was finally able to perfectly control the temperature of the flame, and he could adjust even the slightest temperature change. Of course, this is only relative to the current him.

Qin Yu opened his eyes and smiled with satisfaction, "This is really the most perfect fire control technique." ”