With such a powerful formation in hand, Cheng Yu didn't dare to waste any more time, so he hurriedly studied it carefully. But soon a day passed, and Cheng Yu didn't have a clue with the forty-nine runes.

Although he has a lot of experience in cracking the runes, getting these forty-nine runes still makes Cheng Yu dumbfounded.

Because there are a lot of incomprehensible patterns in these forty-nine runes, how can this make him good? It's like a paleographer getting an article on ancient characters, but there are many new ancient characters in this article that have never been seen before, which makes the whole article obscure.

And the important thing is that the translation of the ancient text can be translated word by word, but this formation is different, not only does it need to translate the formation, but it also needs to study the forty-nine runes to be combined in order to activate the formation.

If the order is not right, the formation will not be activated at all, and everything will be in vain.

Cheng Yu was lying on the fourth floor alone, and there were forty-nine runes in front of him, these forty-nine runes were black and white, forty-five were white, and the other forty-four were black.

Looking at the two runes, one on the left and one on the right, Cheng Yu's eyebrows had been squeezed together, his head was sweating profusely, it had been three days and three nights, and he could only understand the seven-layer formation of each rune, which made this formation completely unknown in the world.

"I'm depressed, although the old man of the Heavenly Array is a smart person, but he is too smart, why didn't he think that his heir would probably not be able to understand his formation? How is this good? If such a powerful formation can't be used, it will be a great loss!" Cheng Yu thought very depressedly.

Although the ability of the old man of the Heavenly Array made him really admire, but he was also despised to death, this Immortal Demon Tower is so mysterious, he should come up with another manual!

You see, in the current world, which household appliance does not have a manual, since he has been selected as the heir, what should he do so hard?

"You old man, I don't know how to talk about you, you know how to play mysterious! You were born a little early, if you were born in the current world, and make such an unused immortal demon tower, if you do business, I will guarantee that you will lose all your money!" It's been five days, Cheng Yu really can't decipher it, he helplessly put away the forty-nine runes, and despised the old man of the Heavenly Array thousands of times in his heart!

He had already felt the fluctuations of the Great Yan Inheritance Cultivation Array, and it seemed that the male and female demons were about to wake up, and he didn't care. Anyway, I have a lot of time, and if I can't solve it now, it doesn't mean I can't solve it in the future.

Moreover, he has the Formation Soul Lord Jade, and the formation will be cracked sooner or later!

The whole person disappeared on the fourth floor in an instant, and the next moment it had already appeared on the ninth floor!

Looking at the male and female demons in the formation, the aura of the formation fluctuated very strongly!

"It turned out that the two of them were going to break through at the same time!" Cheng Yu was about to wake up, but he felt that the aura was gathering in the two of them, and he knew that they were about to break through, and he was immediately excited.

Although the two did not join the Cheng family, but only agreed to him three conditions, he believed that after this experience, even if he did not ask them to join the Cheng family in the future, they would take the initiative to join the Cheng family.

Because the Cheng family will not give him a second choice next time, if they want him to break through the realm for them again, then they must join the Cheng family.

As for whether they were from the Demon Dao or not, he really didn't care at all. In this world, whoever has the biggest fist has the final say.

If it weren't for the fact that his fists were small, would Kunlun dare to be so arrogant? It was because Wuji Palace's fists were bigger than his Kunlun, so he was wary of Wuji Palace everywhere.

As long as their Cheng family has attracted a large number of masters and raised their strength, they Kunlun is still a fart, and if they want to pinch them, they will pinch them!

In fact, if the two of them can't break through this time, they will disappoint Cheng Yu. Because once they don't break through, they won't have so many expectations for his secret method, and only after trying this sweetness will they never forget it.

And now it seems that his plan has been a step successful, just waiting for them to successfully break through!

The strength of the two is strong, and it is not a trivial matter to break through to the Mahayana period, what is needed is that the aura is not ordinarily large, and this immortal demon tower does not produce aura, so he has to input the aura of the mountain and river diagram into the formation.

On the other hand, this male and female demon demon is also his billboard, you know, now Situ Fu is still in the Cheng family. If the two of them don't succeed in breaking through this time, it will undoubtedly be a slap in the face to his advertising!

Therefore, he hopes that the two of them will successfully break through no matter what, which has become his movable type signboard. When the time comes, I know that the male and female demons have really broken through to the Mahayana period with their own help, and I don't think these masters will come to me!

When the time comes, let alone a Situ Fu in the late stage of the merger, he believes that even a master of the Mahayana period will come to him.

After all, at their current realm, no one can be sure that every level they have improved will not be 1,800 years!

But he is able to save these 1,800 years for others and directly make them break through, who wouldn't be impressed?

Thinking of this, the more Cheng Yu thought about it, the more excited he became, thinking of the scene where the Cheng family was squeezed by the masters of the Merge Period and the Mahayana Period, I don't know what kind of expressions Kunlun and Xuantian Sect will have at that time, I'm afraid I'm going to blow up my lungs!

"Hmph!Kunlun!Xuantian Sect!You wait and see! I think it's because you're strong, or if I'm clever, it won't be long before I give you a big gift!" Cheng Yu sneered in his heart.

In order to allow the two to successfully break through, Cheng Yu was not stingy at all, and lost a lot of aura into the formation, and this situation lasted for a day!

"It is worthy of breaking through the Mahayana period, such a scene is grand, and only I can compare with them in this scene!" Seeing that they kept attracting the aura of a day and a night, Cheng Yu also said with emotion.

After all, because of the Nine Branches Spirit Tree, the amount of spiritual energy attracted by each breakthrough realm was quite terrifying, even more terrifying than the two of them, and fortunately he had so many spiritual veins and spiritual crystal veins, otherwise he really couldn't afford such a large amount!

Boom! In a day and a night, the two of them finally succeeded in breaking through! Two masters of the early stage of Mahayana officially appeared!

"Congratulations to the two of you, you have successfully completed your dreams!" After the two broke through, Cheng Yu stepped forward and smiled.

"Haha! In the early stage of Mahayana, this is the early stage of Mahayana! Finally broke through! It's been 300 years, and after waiting for 300 years, I've finally broken through!"