The place where the Qi burst out of the Sword Washing Pool and Tong Yu's right lung was like two sources, and the sword vitality gradually generated in his body circulated between the two.

Every time the sword vitality enters the sword washing pool, part of it will be melted into the cold spirit water in the pool, and while refining the sword vitality, the water is made of gold.

At the same time, when the sword vitality passes through the runes on the sword washing pool, the essence gold qi in the white essence gold that casts the washing pool will also be integrated into the sword vitality a little bit, strengthening this vitality.

All of this naturally forms a perfect cycle, and the vitality works on its own.

Tong Yu stared at this sword talisman for a long time, until he knew all the changes on the sword talisman in his chest.

He is also quite clear about the changes in the qi in his body, and the changes in the qi in his body are corresponding to the changes in the sword rune.

What surprised him was the sword washing pool, when Cai Zijing was refining this foundation-building treasure, he had already integrated these sword talismans from the Tongtian Law Sword into it.

This made his cultivation twice as effective with half the effort, and it was also quite helpful for the comprehension of other sword runes.

At this moment, he really understood that the Sword Washing Pool was not as simple as he originally thought, and it was not just that the refining materials were precious.

Comprehending a sword talisman and forming a sword vitality in his body, Tong Yu is already a beginner in the Tongtian Magic Sword.

However, he didn't stop, but followed the qi of this sword rune, and shifted his gaze to another sword rune.

With previous experience, Tong Yu was much more calm this time.

When he fully understood the new sword rune, he sensed the place of his left lung and the other rune on the sword washing pool at the same time.

Two very different qi planes appeared in his body again, and then fused together, following a different route from before, running in his body.

The sword vitality formed by the two sword runes in his body has a place where they converge and merge, and they are connected to each other, just like the changes of the two sword runes in the void, and the qi is connected.

Seeing through the changes of the two sword runes, Tong Yu did not stop, and the purple-eyed golden pupils continued to look at the third sword rune connected by the qi.

He devoted himself to the comprehension of the sword talisman, and even subconsciously ignored the danger of the discovery of the purple eyes and golden pupils.

The changes of the sword runes were thoroughly understood by him, and a stream of qi appeared in his body, and the connection between the sword washing pool and him became closer little by little with the increase of sword rune induction.

As he comprehended the ninth sword rune, the other eight sword runes that had been comprehended by him before changed at the same time.

In the purple eyes and golden pupils, these nine sword talismans suddenly had new changes on the basis of the original changes.

The nine sword runes were linked together by the connected qi engines, and in the new changes, a larger sword rune was gradually formed, resembling a small sword.

The changes in this newly formed sword rune were dozens of times more complicated than a single sword rune at once.

At the same time as this new sword talisman was formed, the qi in Tong Yu's body also sensed, and the nine different qi machines seemed to be connected together, condensing a special vitality.

As soon as these nine faint sword vitality were fused together, they quickly dispersed, failing to undergo a qualitative change.

"The vitality that has just been formed is too little, and I am also anxious. ”

Tong Yu muttered to himself.

At this moment, he already knew that if he understood any sword talisman and formed a sword vitality in his body, he could enter and step into the realm of nourishing yuan.

The Nourishing Yuan Realm needs to nourish and strengthen the Yuan Qi in his body, and now the sword Yuan Qi that appears in his body is still very weak.

And the larger and more complex sword rune generated by the transformation of the nine sword runes was an opportunity to break through from the Cultivation Yuan Realm to the Refining Yuan Realm.

When the sword vitality in his body is abundant, he can step into the second realm refining yuan realm at any time without any obstacles.

After staring at the newly formed sword rune for a moment, Tong Yu looked away and looked at the other hundreds of sword runes again.

"These hundreds of sword runes need to be fully comprehended, and connected into one, turning into a single sword rune, so that the Dao foundation can be cast. ”

Tong Yu had a realization in his heart almost instantly, and understood that these hundreds of sword talismans were the key to cultivating the Heavenly Sword and casting the Dao Foundation.

The golden pupils were deep, and he looked at the lighter, densely packed and almost infinite other sword runes.

"Such a vast, star-like sword talisman needs to be comprehended and turned into a rune sword in order to cultivate into a true heavenly magic sword. ”

"But how long will it take—hundreds, thousands, or even longer?"

Tong Yu shook his head and sighed at the void.

At this moment, his heart rose with a heartfelt admiration for the people of Tongtian Dao.

It's really hard to imagine how he created this Heavenly Sword and how he created so many sword runes.

"No wonder none of the descendants of the Tongtian Pavilion can practice the true Tongtian Magic Sword!"

Tong Yu didn't know how many times he had made such an emotion, but the more he knew about the Tongtian Magic Sword, the more he could understand Cai Zijing and the others of Tongtian Pavilion.

It's not that they're incompetent, it's just that the Heavenly Sword is too difficult to comprehend and practice.

Even if it is the Immortal Sutra and the Immortal Technique, I am afraid that it may not be so difficult to cultivate.

Whether it is the Liyuan River or the Tongtian Magic Sword, they all gave Tong Yu a considerable shock, the Flying Immortal Gate can compete with the True Demon Palace, it is indeed the corresponding capital, and their ancestors are also geniuses.

After feeling for a long time, Tong Yu began to comprehend the sword talisman again.

Instead of continuing to comprehend the newly formed complex sword rune, he intended to continue to start with the initial simplicity.

But when he looked at one of the initial sword runes again, this sword rune began to change, and it instantly merged with the other eight sword runes, and also turned into a new complex sword rune.

No matter which initial sword rune Tong Yu looked at, a similar change would occur, causing him to continue to comprehend, and it could only be a newly generated complex sword talisman that could only be comprehended.

"Good means!"

Tong Yu's expression was solemn, and he was secretly shocked by this inheritance left by the Tongtian Daoist.

However, comprehending the nine sword runes can already allow him to enter the refining realm smoothly, and whether the other initial sword runes are comprehended or not is not very important to him.

It's just that if he wants to enter the Lock Yuan Realm from the Refining Yuan Realm, then he must thoroughly comprehend the newly formed complex sword runes.

Tong Yu breathed for a moment, and then began to comprehend the newly formed complex sword talisman.

The new sword runes formed by the changes of the nine sword runes are much more complex than a single sword rune, and a little change will affect the whole and involve the nine sword runes.

This made Tong Yu's understanding much more laborious than before, took longer, and consumed more mind.

But fortunately, with the help of the purple-eyed golden pupil and the lotus seed, the revived Tong bloodline and the awakened bloodline supernatural power gave him the greatest help, so that his eyes could penetrate all the changes of the new sword talisman.

Although it took a long time, Tong Yu finally understood this sword talisman thoroughly.

The moment this sword rune was completely comprehended, the nine qi in his body changed again, and the nine runes on the sword washing pool also changed at the same time.

The nine qi machines converged and fused, and this time they did not scatter again, but completely fused and underwent a qualitative change, turning into a new obscure sword vitality.

The nine runes on the sword washing pool fused together, forming a vague qi sword in the sword washing pool.

After the qi sword was formed, it appeared directly in the cold spirit water, and swam in the sword washing pool along the qi machine.

With the addition of this qi sword, the sword washing pool suddenly lived up to its name.

And the newly formed obscure sword vitality in Tong Yu's body blended with the qi sword qi.

Tong Yu also took this opportunity to break the barrier from the Cultivation Yuan Realm to the Refining Yuan Realm, in the cultivation of the Tongtian Law Sword, he had reached the second level of the Refining Yuan Realm, and the sword vitality he cultivated was directly the extremely pure Yuan Qi that had been condensed.

When Tong Yu went to comprehend the sword runes again, he found that what he needed to face was no longer nine runes, but forty-nine.

No matter which original sword rune he looked at, it turned into one of the forty-nine.

These forty-nine sword runes faintly turned into a new, more complex sword rune, and the changes in it, and the difficulty of comprehending it, increased almost geometrically.

"It's just that from the Refining Yuan Realm to the Locking Yuan Realm, it's actually so difficult!"

Although he had long been mentally prepared for the difficulty of comprehending the Heavenly Magic Sword, when Tong Yu really faced it, he was still taken aback.

Even if he only wanted to cultivate the part of the Tianyuan Realm, it was very difficult, and it was definitely not something that could be quickly comprehended in a short period of time.

Tong Yu frowned, and a hesitant look appeared on his face.

He was now beginning to wonder if it was really the right decision for him to choose Jinshui fellow cultivators and cultivate this Heavenly Magic Sword.

Just the part before comprehending this exercise and building the foundation requires a lot of time and energy, which is not taught by others, and you mainly have to rely on yourself, and Cai Zijing can't help much.

"When the interruption continues, it is chaotic. ”

After Tong Yu hesitated for a moment, he still made up his mind, and looked at the Heavenly Sword Talisman with a firm gaze.

"Since you have made up your mind to cultivate the Heavenly Sword of Heaven, you must obtain a complete inheritance, otherwise it is not of much significance to only get the point of comprehension. ”

He didn't know how long he could stay in the Flying Immortal Gate and how many times he could come here, so it was best to take the complete inheritance directly this time.

Even if you can't comprehend it for the time being, you can save it for later.

Just do it, Tong Yu's mind sank into the sea of consciousness and came to the side of the tortoise shell.

Looking at the little bit of Origin Qi that remained, he couldn't help but sigh and said, "After consuming it this time, I don't know if there is a chance to get the Origin Qi again." ”

After a pause, he immediately said firmly: "However, the Tongtian Sword is worth my shot, this is indeed a top-level spell with extremely strong attack power, and I believe it is not weaker than ordinary immortal arts." ”

Tong Yu believes that anyone who has seen this inheritance will probably have such thoughts.

"Let's get started!"

Tong Yu used the Origin Qi to urge the eight symbols on the tortoise shell, and the eight symbols were suddenly projected to the inheritance place outside.

The sword talisman in the sky appeared one by one in the strange light of the eight symbols above the tortoise shell, and the complete inheritance of the Heavenly Sword was perfectly stolen by the tortoise shell. Lao Guo said that Xiao Guo Yinwo rice cake @! Good news, the book friend group on this site has been opened, and the group number is as follows 2969158 please send a user name for verification