Xu Zifan was carefully observing Mu Gaofeng's state at the moment, and saw that there was a faint red aura circulating around his body, and there was true qi gathering in his dantian part, gathering more and more, and after a certain moment, it seemed to turn into substance.

In Xu Zifan's perception, it was like a flame forming in the Mufeng dantian, flickering with a faint red light, but it released a gloomy and cold aura, if there was nothing, it flickered.

The internal strength of the evil sword spectrum continued to operate at this moment, and the faint red flames in Mu Gaofeng's dantian seemed to be extinguished at any time, and the flames were swaying, flashing with a strange red light.

The internal breath operates, flowing in the body of Mu Feng according to a specific route, and the faint red flame swayes, flickering in its dantian, flickering red.

"Boom!"

At this moment, the flames suddenly burst into flames, turning into wisps of red, and the inner breath spread from the Mu Gaofeng Dantian to the tendons and veins of his whole body.

At this moment, from the outside, Mu Gaofeng's whole body surface, from the dantian, there are a trace of weird red lines to the chest, to the neck, to the limbs, and finally Mu Gaofeng's eyes turned red, and there seems to be a fire burning in his eyes.

"Ahh

Suddenly, with a scream, Mu Gaofeng spat red blood from his mouth, and then fell to the ground without saying a word, motionless, and had passed out.

And Xu Zifan had already appeared beside Mu Gaofeng when he screamed, and his hand pressed on Mu Gaofeng's dantian, and the billowing Zixia True Qi entered Mu Gaofeng's body along Xu Zifan's palm.

After a while, Xu Zifan frowned, Mu Gaofeng's condition did not improve, even if it was himself, he could not save him.

The word "sunflower" has explained some problems, sunflower is a sunny thing, yin and yang attract, for the reason of heaven and earth, is that sunflower is yin, and sunflower true qi is also yin.

At this time, the sunflower true qi in Mu Gaofeng's body flowed all over his body, hooking the evil fire in his body, and the evil fire was invisible, born from within, burning all over his body, resulting in lust and burning.

At this time, the situation in Mu Gaofeng's body was much more serious than Tian Boguang's, and the sunflower true qi had already flowed all over his body, triggering infinite evil fire, even if Xu Zifan dissolved the sunflower true qi in his body with Zixia Divine Skill at this moment, but the evil fire had been born and burned all over his body, and Mu Gaofeng's symptoms were not so easy to eliminate at this time.

For the evil sword spectrum, or the remnant of the Sunflower Treasure Book, Xu Zifan has also studied it for a long time and understands the principles of martial arts.

If you want to practice divine skills, lead the knife from the palace.

If you don't go from the palace, the work will be hot.

Heat rises from the body, and the body burns.

From the bottom to the top, it is chaotic.

Even if the heat stops, the injuries do not stop.

The true qi of the sunflower belongs to yin, because yin and yang attract, the practitioner will be hooked by the evil fire in the body, and the evil fire will burn the body, and the mind will be invaded, so that the fire will go crazy.

Xu Zifan has also studied this characteristic of Sunflower True Qi for a long time, and he attaches great importance to this exercise.

Sunflower true qi can trigger the evil fire of the human body, Xu Zifan feels that this should not appear in the world of medium and low martial arts like Xiaoao Jianghu, what is the evil fire of the human body? Evil fire is invisible, involving the seven emotions and six desires of the human body, there are three treasures in life: essence, qi, and god, and the seven emotions and six desires belong to the "god" aspect, so this exercise actually affects the "god", which has to make Xu Zifan impressed, and he admires the creator of the Sunflower Treasure Book very much.

In the world of Xiaoao Jianghu, martial arts involves the level of "god", what Xu Zifan came into contact with, that is, when the original sword of the wind is clear, the drizzle is misty, the breeze is slow, so that the heaven and the earth mourn, and the sentient beings cry, but it is already in the category of swordsmanship, it is the supreme master combined with his life experience, sublimated the sword in his later years, and the sword intent of his life is transformed into a sword with "love", thus affecting the surrounding heaven and earth.

And the sword spectrum to ward off evil spirits, or the Sunflower Treasure Book, involves the "gods" of people from the beginning of the practice, so Xu Zifan is very surprised by this exercise, he is thinking, this exercise should not appear in this world, or if this world can solve the disadvantages of this exercise, then this exercise may be a milestone in the world of Xiaoao Jianghu towards the middle and high martial arts.

As for this magic skill, if you want to practice, you have to wield a knife from the palace, and it will solve the problem of evil fire, which gives Xu Zifan a lot of inspiration.

Women belong to yin, men belong to yang, both men and women themselves have evil fire in themselves, and castration can solve the problem of evil fire burning the body during practice from the root.

In other words, from this solution, only men in this world have the conditions to practice this exercise, and women do not.

According to the principles of martial arts, Xu Zifan concluded that castration is only a solution to successfully practice this exercise, and its fundamental condition is to prevent the body's own evil fire from igniting.

Considering from here, Xu Zifan has several ideas, one is to fine-tune his internal power operation route according to Xu Zifan's understanding of martial arts, and then observe whether it can be successful.

The second is to cultivate the internal power to suppress the evil fire at the same time, but in this way, it is easy to cause internal breath disorder in the body.

Both methods are very risky, if you don't try it well, you will go crazy, both methods, Xu Zifan is currently researching, and Tian Boguang and Mu Gaofeng are his guinea pigs.

In addition, he also has an idea, the so-called solitary yin does not grow, solitary yang does not grow, even after castration, it can put an end to the evil fire of the human body, but at the same time, it also cuts off the root of the human body's yang energy, the true qi of the sunflower belongs to the yin, and when the skill is practiced to the depths, is there really no problem?

At this moment, Mu Gaofeng vomited blood and fell to the ground, Xu Zifan had already used Zixia True Qi to dissolve the sunflower True Qi in his body, but all over his body, from the inside out, there was still evil fire eroding, if it could not be stopped, it would be a loss of power at the least, and it would be life-threatening at worst.

At this time, Mu Gaofeng gradually woke up from his coma, his eyes were red, his eyes were sometimes weird and crazy, sometimes sober as before, but what remained unchanged was that there was a painful color coming out of his expression, his whole body breath was disordered and restless, and there was still a trace of red true qi in the dantian.

"Ahh I can't take it anymore...... It's so uncomfortable...... Help me......"

Mu Gaofeng was roaring at the moment, his red eyes sometimes looked at Liu Jing and Qu Feiyan in the distance, full of madness and desire, and sometimes turned sober, looking at Xu Zifan, his eyes were full of fear and pleading.

"Wow......"

A mouthful of red blood spit out, Mu Gaofeng's breath was sluggish at this time, and his face was pale, but the evil fire around him was even more vigorous.

Xu Zifan knew that if he didn't rescue him, in less than a moment or three, Mu Gaofeng would definitely be ruined.

"Lao Mu, at this moment, Zixia's true qi is useless to you, your only way is to save yourself, as for the method, the beginning of the evil sword spectrum has already been written."

Xu Zifan looked at Mu Gaofengdao, there was some regret in his voice, but he was also a little relieved, he could use him to study the state of the human body when the Sunflower True Qi was practiced to the fullest, and see if there were any problems when he practiced to the highest depths, he needed to participate in the research and analysis as much as possible.

He looked forward to the day when he could eliminate the drawbacks of the Sunflower Treasure Book and deduce it into the Divine Skill Book of the High Martial World, so he needed more experimental subjects or guinea pigs, thinking of this, his eyes looked to the north, where is the hinterland of the Central Plains, there is a famous mountain, known as Zhongyue.