Yu Fei, who was devastated, couldn't sit still at all, and immediately pulled out his sword, wanting to find a few monsters to vent, at this time the demon qi felt Yu Fei's anger, and happily drilled into his body, wanting to demonize Yu Fei.

However, as soon as they entered the dantian, they were eaten by the dark energy ball, Yu Fei scolded and vented his anger while sticking his sword into the ground: "They are all crossed, why is the treatment gap so big? What about my grandfather? What about my artifact? What about my divine beast? What about my senior sister? If not, forget it, the things that others can solve by perseverance have come to me tens of thousands of times, and they don't bird me...".

Yu Fei scolded tiredly, lay down, and let the demonic qi enter the body, into the body, anyway, you can't demonize me, this is the only use of the dark energy ball.

While relaxing, Yu Fei suddenly had a feeling that he was about to get married, and he quickly sat up in fright, this is the peak of the aura value in the body, and under the operation of the rules of the universe, the body has a tendency to condense into a pill.

Yu Fei hurriedly calmed himself down and prevented the demonic qi from continuing to enter his body, and now he knotted the pill, which would only cause the pill to shatter.

If there is only spiritual power in the body, then the knot pill is the perfect elixir, round and full; if there is only demonic energy in the body, then the knot pill is the perfect magic pill, and it is as stable; but if the body is dominated by spiritual energy and has a small amount of demonic energy, the elixir that is formed will have black lines, the same as the cracks, and the two are not in harmony and symbiotic, it is not a double cultivation of gods and demons at all, it can only be called a spirit pill mixed with impurities, which is very fragile.

And this is the case with Yu Fei now, if he is married now, the final Cheng Dan must be very fragile, and the path of cultivation will be ruined.

After calming down, Yu Fei began to empty himself and stabilize his state of mind, and gradually the feeling of wanting to marry Dan slowly subsided, and the boiling spiritual power in the dantian returned to tranquility.

With a long breath, Yu Fei secretly laughed that he was always an ordinary person, and he was emotional at every turn.

However, since the Void Clan can urge and use dark energy to fight, it means that this energy and spiritual power must have something in common, and it must be able to be urged, but the exercises that urge spiritual power and magic power do not match it, just like the fire attribute exercises can't release water.

However, the fire attribute exercise can't release water, but it can still mobilize the spiritual power in the body... The underlying structure is the same, but the route and method of spiritual power operation are different, so the results are different, so it is not the route that mobilizes the spiritual energy at all, but the lowest structure.

Yu Fei thought of this, smiled again, no longer self-deprecating, he seemed to have caught something, sat down cross-legged again, and felt the dark energy with his heart turned to the sky, just like when he was a child, he felt the aura for the first time, to feel the existence of dark energy.

One day, two days, three days, a month passed in the blink of an eye.

No one knows what Yu Fei is doing inside, and the person in charge is also curious, but he knows how special Yu Fei is, and he can never contact without contact, what if someone breaks up and cuts himself? Anyway, he is not bad at contributing, and it is not his responsibility to stay with him as long as he wants, and it is not his responsibility to die.

And Yu Fei is helpless here, his qualifications have never been good, it took a month to induce the aura, you must know that the qualifications are better in a few weeks, and the genius only takes a few hours...

But fortunately, after two months, Yu Fei finally sensed the dark energy, which is not seen with divine sense, but a connection in the dark, even if you don't look at him, you can feel it there when you close your eyes, just like a quiet night, you see fireflies flying, suddenly you close your eyes, but you still seem to see fireflies flying.

It's a wonderful feeling, it's this kind of connection in the dark, the first time I sensed the aura, it was also this feeling, as soon as I closed my eyes, there were countless pale cyan fluorescent dots flying around me, those were all aura, the aura that the naked eye couldn't see, and now, Yu Fei finally found this feeling again, as if he could reach out and touch the dark energy bead in the dantian.

The next moment, Yu Fei's heart moved, and he used the most basic spiritual power urging method to urge the dark energy, and sure enough:

The dark energy moved.

Just like spiritual power, dark energy is evacuated from the sphere by a trace, forming a ribbon-shaped, which can be mobilized by Yu Fei, which is no different from spiritual power.

Yu Fei was overjoyed, and immediately controlled the spiritual power and dark energy to entangle each other in the meridians and swim according to a special route, one circle, two circles, three circles, and the spiritual power that was entangled with each other was gradually swallowed by the fusion of dark energy and returned to the dantian to integrate into the dark energy ball.

Although there is consumption in the transformation process, it seems to be a loss, but the lost spiritual power has become a denser dark energy, making room for the dantian, so that you can absorb more spiritual energy, and more importantly, the continuous circulation will make the spiritual power value and dark energy value in the dantian reach a balanced state, so that you can try to cultivate the spirit and dark double cultivation pill, how not to make Yu Fei happy.

When the second cycle was passed, it was already a familiar road, and the speed became a little faster, and the third time it was faster, and the spiritual power in the dantian was constantly converted into dark energy, and the gap between dark energy and spiritual power was getting smaller and smaller.

By the fourth time, Yu Fei began to extract demonic energy from the outside world to replenish dark energy, and the inner space of the dantian had already allowed Yu Fei to do so.

At this time, in Yu Fei's body, a spiritual power operation route will continue to transform spiritual power into dark energy, and the other is to continuously absorb the external demonic energy to the dantian to be swallowed by dark energy, with the help of these two forces, the dark energy continues to increase, and the dark energy ball is also growing, which is very similar to the knot, but it is not, but the accumulation of quantity, but the dark energy is accumulated in the form of a ball, and the spiritual power is accumulated in the form of a sea.

In the blink of an eye, another month has passed, Yu Fei finally feels that the spiritual power value and the dark energy value are almost the same, in general, his spiritual power has become a little less, but the spiritual power can be converted into dark energy, then the dark energy must be converted into spiritual power, when I think of this Yu Fei can't help but laugh secretly, this is a feeling full of power.

And the steward outside really can't sit still, how can anyone stay in the demon feeding room for three months, how strong willpower does this need to be so that it won't be demonized? Are the people who cultivate gods and demons so terrifying? With a worried heart, I pray every day that Yu Fei will come out quickly, and don't make any moths, otherwise I can't keep my iron rice bowl.

On the other side, Lan Tuo and Qianshan came in again, and brought a monster, Lan Tuo frowned and said: "Qianshan, the demonic energy in this, is it better than last month... Less?"

Qianshan nodded and said, "Yes, I also feel it, it's not as dense as before, could it be that there are more people raising monsters recently?"

Lan Tuo was puzzled: "But for so many years, there has been a climax period of raising monsters in Senluo Academy, and I haven't heard that the demonic energy in the demon feeding room will decrease, is it... If there's a problem in the Heavenly Courtyard, the devil won't run away, hahaha. ”

Qianshan shook his head and disagreed, if he ran away, the demon would suck up the demonic qi here as soon as possible to replenish himself, but why the demonic qi suddenly became less, he couldn't figure it out.

At this time, in the deep mountains of the Heavenly Courtyard, in a special space, there is a huge chain that extends into the distance, it must be a hundred meters thick, and what kind of monster is locked at the end?

Reaching inside, there was endless demonic energy, so dense that it was impossible to distinguish the direction, and the ends of the chains turned into rune-like chains, a total of eight of which locked a person!

Not only that, as if he was worried that the eight rune chains would be difficult to trap this person, he also nailed eighty-eight nails on his body, penetrated deep into the bone marrow, and constantly extracted the demonic qi in his body, it turned out that this endless demonic qi was actually drawn from this person.

Suddenly, this demon who had been ravaged by endless years opened his eyes, one was a scarlet demon eye, full of rage and murder, and the other was a clear human eye, full of gentleness and humility, he squinted his eyes and looked into the distance, it was the demon feeding room in the underground courtyard, the demonic energy here was transported from him, and he could sense the abnormality in the demon feeding room through a thousand mountains and formations.

muttered: "What a greedy little devil~ hum hahaha".

But he said that Yu Fei didn't care about the changes in the outside world, and after another week, he finally felt that the spiritual power and dark energy were equal, and the dantian space was completely saturated, and he had to go out to prepare for the Dan.

I stretched my waist and was in a very happy mood.

Suddenly frowned: "This... Why does the demonic energy in the demon feeding room feel a little less? No wonder it took me so long! It's too bad I didn't replenish it in time..."

Yu Fei complained in pieces, and he didn't know that he was harmed by the lack of demonic energy.

On the way to the exit, Yu Fei and Lan Tuo just collided, Lan Tuo looked at Yu Fei in surprise and asked, "Do you also raise monsters?"

Yu Fei smiled: "Hmm... Uh-huh, yes, it's a very fierce kind. ”

Lan Tuo said with interest: "We still have a common hobby, when will I study it?" ”

Yu Fei smiled noncommittally, and the two passed by.

After Yu flew away, the corners of Lan Tuo's mouth hooked up a wicked smile and said: "He has a ghost monster, my pet didn't react at all, Qianshan, you said he wouldn't be a god and demon double cultivator, right?"

Qianshan nodded and said: "I can't rule out this possibility, the murderous aura that occasionally erupts from his body far surpasses that of others, and his murderous nature will never be as gentle as it looks like at a critical time." ”

Lan Tuo smiled and said, "I must get him~."

Yu flew out of the demon feeding room, startled the steward, and stayed in it for three months, why didn't he feel tired at all? This is the monster of the double cultivation of gods and demons? There is no need to bother to resist demonization, demonic energy is a great tonic for him, it is really domineering.

Yu Fei also looked at him strangely, why did he look at me strangely, but he still kindly reminded: "The demonic energy in it has become less, remember to add it." Then he strode back, and his joy was expressed in his arrogant pace.

The steward muttered: "How can there be less demonic energy, just that transmission volume, if I hadn't controlled the valve, it would have been... It's really getting less!" The steward looked at the demon feeding room blankly, this demon qi couldn't have been sucked by him.

The steward smiled: "No, no, how is this possible, hahaha... If it's true... I heard that every time someone who cultivates demonic skills wants to kill someone, he will first kill the demon feeding room, and then replenish the demonic qi... Shall I change jobs?"

After returning to the dormitory, Yu Fei slept beautifully to relieve the fatigue of the past three months.

The next day, I went straight to the library, soaked in it for seven days, read a lot of books about the knot, and spent a hundred contribution points to buy a well-received knot Dan experience cheats, and after reading it, I prepared some Qingyuan Dan, Aiki Dan and other pills containing a lot of spiritual power, in case the aura of heaven and earth was not enough when the knot pill was knotted, and in the end I could only make a remnant pill.

Thinking of this, Yu Fei ran back and bought some more, anyway, it's okay to have more of these elixirs to replenish spiritual power, and Yu Fei suspects that the spiritual energy he consumes must be very large, in case it is really not enough at that time, who will cry?

After careful inspection, Yu Fei made sure that he was ready, so he officially applied to the Martial Arts Academy to enter the Danyuan Secret Realm, reason: Yudan!