There were only two people left in the house, Yan Howling and Yin Tianyu, because Yan Howling said that he should not be disturbed in any way when building the spirit, he first asked Lei Xing Fall to wait outside the house, and then came to help him after helping Yin Tianyu build the spirit successfully.

As Yan Roar sat cross-legged on the ground, Yin Tianyu reached out and took the fire spirit stone that Yan Roar handed over, and suddenly thought of something, after the spirit storage ring on his hand emitted a burst of light, a demon beast Yuan Crystal appeared in his hand.

"Master, isn't it better to use this to build spirits?"

After Yan Yanxiao took the demon beast Yuanjing to check it, his eyes were extremely surprised, and he said in his heart that this should be the Yuanjing obtained by this kid who killed the black fox.

"I didn't expect you to have this kind of treasure on you, well, it's indeed much better to use the black monster beast Yuan Crystal to build a spirit than the Yuan Spirit Stone, since that's the case, then let's start." ”

According to Yan Yan's instructions, Yin Tianyu held the demon beast Yuanjing in his hand, slowly closed his eyes, and calmed his mind.

"Soul building, is to use all parts of the body to feel the true spirit qi contained in the heaven and earth, because you have not been directly in contact with the true spirit qi, so you need to use the true spirit qi contained in the demon beast yuan crystal to help you guide the understanding, when your body can accurately feel the true spirit qi that is consistent with your own attributes from the heaven and earth aura, you can introduce them into the body, so as to form a true spirit cyclone in the dantian, so, it means that you have succeeded in building the spirit. ”

"Just now I have already told you how to stimulate the method of the Demon Beast Yuan Crystal, and now, I will begin to comprehend the true qi of the fire spirit!"

After Yan Howling finished speaking, Yin Tianyu began to use the method he taught himself to urge the Demon Beast Yuan Jing, only to see that he cut a hole in his palm, and when the blood flowed out, a seal was pinched out of his hand, this is the Spirit Seal that Yan Wild Roar taught him, which was specially prepared by the Great Yan Sword Sect for disciples during the spirit building period, and its function is to urge the Demon Beast Yuan Jing or Yuan Spirit Stone to make it emit the hidden True Spirit Qi without using the True Spirit Qi as a guide.

After the seal was formed, Yin Tianyu hit it on the Demon Beast Yuan Crystal, and the blood instantly wrapped the entire Demon Beast Yuan Crystal, on it, a fiery red light began to emanate, only to hear Yin Tianyu shout, the hand that pinched the spirit seal suddenly fell back, and the Demon Beast Yuan Jing followed his movements, a hot red energy floated towards Yin Tianyu's palm, and then the red energy began to slowly enter his body through the wound on Yin Tianyu's palm, and at this moment, Yin Tianyu's body began to tremble constantly!

"Hold on to your heart!"

Just as Yin Tianyu's face became more and more ugly as his body trembled, Yan's roaring shouts came into his ears.

The moment the fire spirit true qi in the demon beast Yuan Jing entered Yin Tianyu's body, Yin Tianyu instantly felt as if his body was swallowed by blazing flames, and he clearly felt that the fire spirit true qi in his body that entered his body one by one spread all over his body along his meridians, and the painful cry that seemed to be burned almost made him collapse.

Fortunately, there was a roar of fire, Yin Tianyu forcibly pulled his consciousness back, if he was eroded by the scorching heat, then let alone building spirits, the irascible fire spirit true qi would definitely burn all the meridians of his body, I am afraid that Yin Tianyu will become a waste person in the future.

Seeing that Yin Tianyu's face gradually improved, Yan Yanxiao breathed a sigh of relief, and then said: "Now that the fire spirit true qi in the demon beast Yuan Jing has successfully entered your body, what you have to do now is to feel the breath of the fire spirit true qi, keep this feeling in mind! After the fire spirit true qi in the body dissipates, you must use your body to feel the existence of the fire spirit true qi between heaven and earth, and you must not slack off at this moment!"

The temperature emitted by the fire spirit true qi was still constantly invading Yin Tianyu's consciousness, but he knew that now was not the time to complain, he could not keep this fire spirit true qi in his body permanently at this moment, and it would not be long before these fire spirit true qi would disperse. Therefore, he must take advantage of this moment to carefully comprehend the breath of the fire spirit's true qi, otherwise all the pain he has just endured will be wasted.

As time went on, Yin Tianyu's face and body began to become more and more red, and sweat continued to slide down from his forehead, but before it dripped, it evaporated and dissipated, which showed how high the temperature on Yin Tianyu's body was at the moment.

Nearly two days have passed, and in these two days, even Yan Yanxiao, who likes to sleep, has not relaxed for a moment, patiently guarding Yin Tianyu's side, not daring to be careless. And at this moment, Yin Tianyu, the red on his skin has slowly faded, and his expression began to become calm, seeing his appearance, Yan Wild Howl also let go of the heart that had been hanging, he knew that the fire spirit true qi in Yin Tianyu's body had gradually disappeared, and next, it would depend on the creation of this kid, if he successfully comprehended the breath and characteristics of the fire spirit true qi in this time, then his spirit building would be more than half successful. If not, then the suffering that Yin Tianyu had suffered in the past two days would be in vain, and it would even have a great impact on him when he rebuilt his spirit in the future.

Yin Tianyu felt extremely comfortable at the moment, the burning sensation just now had faded, and now he felt that his body seemed to be more powerful than before, and this change was a benefit from the True Spirit Qi Rushing Body, that is, after the Fire Spirit True Qi flowed through Yin Tianyu's meridians, because of the continuous washing of the Fire Spirit True Qi, the meridians in Yin Tianyu's body at the moment had been expanded, and because of the scorching Fire Spirit True Qi, the impurities hidden in Yin Tianyu's body for many years had also been cleaned up, so he would have this feeling of being energetic。

But this is not the time to be happy, the fire spirit true qi is about to be drained, and then it will be an even more difficult moment, through the previous perception of the fire spirit true qi, Yin Tianyu believes that he has mastered the characteristics of its breath, but there is no harm in having more understanding, so Yin Tianyu continued to calm his mind and seriously comprehend.

At noon on the third day, Yin Tianyu finally returned to his normal state, and all the fire spirit true qi was dissipated, and the next thing was to test the results of Yin Tianyu's efforts in the past three days!

"Hmm...... No....... It's not ......."

At the moment when the fire spirit true qi generated by the demon beast Yuan Jing in his body disappeared, Yin Tianyu began to calm down and feel the true spirit qi contained in heaven and earth, after the baptism of fire spirit true qi, the current Yin Tianyu found that he could easily feel the breath circulating around him, and tried his best to compare the breath in his perception with it, and gradually, Yin Tianyu finally caught a trace of familiar breath!

"That's it! This scorching temperature, the violent breath, is the true qi of the fire spirit! Hahaha! Master, I succeeded!"

Feeling the abundant fire spirit true qi around him, Yin Tianyu couldn't help but sigh, this Great Yan Sword Sect is worthy of being a sect based on fire attributes, and the number of this fire spirit true qi is simply innumerable, maybe this is related to the fire attribute spirit vein that Yan Roar told him before.

Suppressing the excitement in his heart, the next thing he had to do was to incorporate these fire spirit true qi into his body and introduce the dantian to form a true spirit cyclone, so that the spirit building could be regarded as complete.

On the day of the entry, Yan Howling once gave Yin Tianyu and Lei Xingcheng a book of cultivation exercises, called "Turning the Spirit Technique", this is a kind of exercise specially used to build the spirit, a long time ago the world several powerful writings, to now, the "Transformation of the Spirit Formula" has been popularized, and various sects or some prominent families have also used this exercise to help their disciples build the spirit.

Thinking back to the method of inducing qi into the body mentioned in the "Turning Spirit Formula", Yin Tianyu's hands began to follow the memory and constantly pinch the handprint, after the seal was formed, Yin Tianyu felt that the dantian in his body generated a suction force from the inside out, and the fire spirit true qi flowing around his body began to slowly enter Yin Tianyu's body with this suction force.

Unexpectedly, he really did it, feeling the fire spirit true qi that slowly flowed into the meridians, Yin Tianyu knew that the next thing was a long wait, and only when the fire spirit true qi condensed to a certain extent in his dantian could they form a cyclone.

And at this time, Yin Tianyu suddenly felt that something was wrong, in this true spirit qi flowing into his body, it seemed that there was more than just fire spirit true qi!

"This ...... What the hell is going on?"