Longyang Peak, in the elder-level spirit gathering formation, Luo Feng was practicing desperately.

Seven days passed, and he didn't waste even a second.

It's a pity that despite the help of the Spirit Gathering Array, even though he has saved even the time to eat and drink, the Shura Battle Technique still hasn't broken through to the second level.

The Shura battle technique is too profound, and the more he cultivates, the more tricky Luo Feng feels.

This feeling is the same as when he first entered the industry, when he was still a novice who didn't know anything, thinking that being a killer only needed to be able to press the trigger.

Now that I think about it, he was really too young, too simple Tucson at that time.

Later, after Luo Feng went deep into that world, he realized how naïve his former self was.

If you want to be a qualified killer, you can't just be ruthless, he has too many things to learn.

Since then, Luo Feng began to frantically absorb all kinds of useful knowledge, and went through an unknown number of inhumane training.

It was a hard time, but it was also very happy, he was improving every day, learning new things every day, and getting stronger every moment.

Now, after coming to this cultivation world, Luo Feng has become the little white who knows nothing about the world again.

And this time, he is facing an even more tricky Shura battle trick.

Compared to his killer training, the Shura Battle Technique is a high mountain, and the knowledge that becomes a killer is only a small dirt bag at best.

In the face of this Mount Everest-like mountain, Luo Feng was not only not discouraged, but gave birth to a fighting spirit.

The super high cultivation difficulty of the Shura Battle Technique only aroused his competitive spirit.

After all, in his previous life, it only took him three months to become a killer known to everyone, and after three years, no one dared to mention his name, because he was the number one killer in the world and the real god of death.

Luo Feng believes that this time, he will also climb to the top of the mountain and become the strongest.

Of course, after seven days of penance, he did not gain nothing.

For the Shura battle technique, killing inheritance and martial spirit, Luo Feng has a new understanding.

The Shura Battle Technique is similar to the Jiuyang Divine Skill in the novels of the previous life, which can turn spiritual power into the most rigid and fierce Shura Battle Qi.

At the first time, Shura's battle qi can increase the power of the combat skill by a small level, and there is a possibility that Shura's battle qi will go further.

For example, the first few times Luo Feng encountered danger, the Shura battle qi turned into a high-level Shura Black Flame.

The power of the Shura Black Flame is simply so strong that there are no friends, whether it is life force or spiritual power, the Shura Black Flame can be burned out.

To be honest, Luo Feng really wanted to see how strong the silence emitted by the Shura Black Flame was, but it would take a long time to do it.

As for the martial soul, it is more complicated, all along, he only knows that his martial soul can absorb some spiritual power, and can also control the beast soul, and his martial soul seems to be a black unicorn.

However, Luo Feng remembered that the reason why he crossed was because of this unicorn, so there must be something he didn't know about.

Even, he suspected that this black unicorn was not his martial soul at all.

The evidence is that Luo Feng found that the killing inheritance, Shura battle qi, and black unicorn have a complementary relationship.

In his perception, the Killing Inheritance was like a sharp blade shining in the sea of knowledge, and the two pages that represented the Shura battle technique were two pages.

As for the black unicorn, it is elusive.

However, the brilliance of these three does echo each other, and the breath of the three also has something in common, as if they come from the same source.

If it is said that the Shura Battle Technique is a companion exercise, then it has something to do with the Black Qilin, Luo Feng can completely understand it, but why is the killing inheritance.

As early as when he used a sword to seal the sky, Luo Feng found that the increase of Shura's battle qi on the killing inheritance was particularly large, whether it was the killing sword technique or the killing pupil, with the blessing of Shura's battle qi, it would become more powerful.

In Luo Feng's view, the Shura Battle Technique is fundamentally like a supporting technique for the killing inheritance.

As for the mysterious black unicorn, it can absorb the Shura battle qi to strengthen itself, and the spiritual power absorbed by the black unicorn can feed back the Shura battle qi.

In this way, the black unicorn enhances the Shura battle qi, and the Shura battle qi enhances the killing inheritance, and with the combat skills provided by the killing inheritance, Luo Feng can challenge and kill stronger demon beasts to cultivate the black qilin, which forms a complete ecological cycle.

Originally, this cycle was perfect, but because Luo Feng excessively squeezed Shura's battle qi, causing the Shura cyclone to get out of control, it broke the balance and caused future troubles.

As for why these three have such a wonderful relationship, Luo Feng felt that it was either providence, or there were secrets in it that he didn't know.

However, no matter what the reason was, Luo Feng didn't have time to explore, and the most important thing now was to break through to the second layer of the Shura Battle Technique.

In the formation, Luo Feng calmed down and continued to cultivate.

At the dantian, the black Shura cyclone was moving according to a mysterious trajectory.

This is Luo Feng's greatest achievement.

Under the control of his powerful spiritual power, the Shura cyclone already has a tendency to be controlled.

However, this is far from enough, Luo Feng knows that he can't be at ease for a day.

If he was given three months, he would have the confidence to cultivate to the second level.

After all, Luo Feng's spiritual power is too strong, and the general combat skills are comprehended instantly, if it weren't for the difficulty of the Shura Battle Technique, he would have broken through a long time ago.

But now he doesn't have much time, only three days, so Luo Feng decided to take the risk.

If he continued to cultivate step by step, he would definitely not have a chance to break through to the second level of Shura in three days, and since this was the case, he didn't plan to take the ordinary path.

According to Luo Feng's understanding, there is a certain degree of commonality between the killing inheritance and the Shura battle technique, and the two complement each other.

Looking at it from another angle, if he has some comprehension of the killing inheritance, then it is possible to break through the bottleneck of Shura's battle technique.

After making a decision in his heart, Luo Feng no longer hesitated, and immediately turned all his energy to the killing inheritance.

While he was engrossed in controlling the Shura battle qi in his body, he used his hands to continuously draw one mysterious mark after another in the air.

Luo Feng chose the cultivation of the Killing Seal, because his cultivation was not enough, and he could only carry out the first stage of inheritance cultivation.

Previously, he had already mastered a Killing Sword Technique and the Killing Pupil, so he could only use the Killing Seal as a breakthrough.

It is very difficult for ordinary people to cultivate the Killing Seal, because only comprehension is not enough, they must have a sufficient understanding of killing intent, and this understanding is not cruel and easy to kill, it is a mysterious feeling.

In his previous life, as the world's No. 1 killer, Luo Feng was no stranger to killing, and he also had his own unique understanding of killing intent.

However, after all, killing intent is just an ethereal momentum, so although his perception of killing intent is very keen, it is only an intuitive cognition.

As the cultivation continued, the previous perceptions hidden in the bottom of his heart began to be slowly stimulated, Luo Feng's cognition of killing intent became clear and concrete, and those imaginary imprints began to shine.

At the same time, as Luo Feng expected, as the Killing Seal condensed, the Shura battle qi in his body became stronger and more refined.

Soon, Luo Feng's meridians were filled with black Shura battle qi.

With the blessing of these Shura's battle qi, the killing seal he condensed became more and more subtle and powerful.

Everything was like a matter of course, and after three days, Luo Feng stopped all his movements and knocked out the mysterious mark in mid-air.

The black mark struck the boulder with lightning speed, and the boulder quickly split apart.

Feeling the surging power in his body, Luo Feng nodded with satisfaction.

He finally accomplished the near-impossible task.

Now, his Shura battle technique has broken through the bottleneck, and his cultivation has also broken through to a two-star martial artist.

After reaching the second level of Shura, Luo Feng could generate new Shura battle qi every moment, and the feeling of that kind of power being born in a steady stream was really wonderful.

Of course, Luo Feng also mastered the Killing Seal, which was an unexpected surprise.

After truly mastering the Seal of Killing, Luo Feng's understanding of the Killing Inheritance deepened.

Just now, his casual blow looked very powerful, and it shattered the boulder in one fell swoop, but in fact, many combat skills can do it.

As part of the Killing Inheritance, the role of the Killing Mark is more subtle, first of all, Luo Feng can use it as an auxiliary combat skill.

The overall strength of the enemy hit by the Killing Seal will drop by a notch, but this is actually only the most superficial way to use the Killing Seal, in fact, the power of the Killing Seal is far from what it appears.

After truly comprehending the killing inheritance, Luo Feng could instantly burst out the killing seal in the enemy's body.

As far as he knew, the lethality of the Killing Intent Burst was extremely amazing, and he could even easily kill enemies of the same level in an instant.

After understanding the true power of the Killing Seal, Luo Feng couldn't help but sigh that the Killing Inheritance was really worthy of the name of killing, and its lethality was more amazing than some heaven-level combat skills.

Now he is not an opponent for a sixth-level martial artist, if he can comprehend the essence of the Killing Seal, he is not without the power to fight in the face of a martial arts master.

The most terrifying thing is that once the Killing Seal is activated, the enemy has no defense, no dodge, and will be injured if hit, which is too threatening.

If Luo Feng had mastered the Killing Seal before, maybe Lin Mubai wouldn't have had the opportunity to use the Demon Transformation Pill at all.

That's the terrifying thing about the Killing Seal, it doesn't look flashy or powerful, but it can kill enemies to the greatest extent.

The Seal of Killing is a true killing skill.

With such a killing stunt mastered, Luo Feng really looked forward to how amazing it would perform in future battles.