Sister's training method is not scientific

Before starting, Yun Jin checked her emotional value.

After adding and subtracting emotional values, there are still more than 500 billion now.

It seems a lot, but it will be spent quickly.

Especially the books in this library are vast and vast. If all of them are to be improved.

I am afraid that these 500 billion emotional values ​​may not be able to hold up.

She must make some choices.

Yun Jin plans to keep 300 billion emotional values ​​as a guarantee, and increase and decrease them in the future, and the total cannot be less than 300 billion.

After all.

The catastrophe of the five great immortal emperors is imminent.

After that, there is the really critical polar night!

Emotional values ​​must be accumulated to break through the true demon realm!

From the vague words of the Devouring Demon God, Yun Jin knew that even in the Polar Night Demon Realm, it is not an easy thing to break through the true demon realm.

But for her, this is something that must be achieved.

In the three thousand years of eternal night, she must break through the true demon!

So this time, the emotional value that can be used is only 200 billion.

Yun Jin gave the system an order: "Scan the whole place, then select the exercises, select the ones that are most suitable for me, and improve them. Total cost: 200 billion emotional points."

This entire library is open to Yun Jin, which is equivalent to opening up the system.

If it is just scanning, the emotional points spent are not particularly high.

Two billion emotional points, the system got the general information.

Then.

After some screening, a long list was listed.

Yun Jin went to the first floor according to the list.

She found all the classics on the list in the first floor, and then began to improve them.

These exercises can be collected by the Devouring Demon God, and they are all good exercises.

But only after being improved by the system, they are the most suitable for her.

There are many exercises. When she returns to the Azure Demon Realm, she can pass the exercises to others to enhance the overall strength of the Azure World.

In short.

These collections will not only enhance Yun Jin's strength, but also become the cornerstone of the Azure World's strength enhancement.

This wave of benefits is huge.

The Devouring Demon God, he is really a good demon!

Yun Jin sighed for a while, and then began a long retreat.

She had practiced the Dark Star Art and the Falling Star Night before.

It took her less than half a year at most.

Now, she still has more than nine years to comprehend the skills.

The Devouring Demon God stared at Yun Jin quietly.

Yun Jin is now completely immersed in the exquisite skills.

The Devouring Demon God smiled slightly.

Before.

Liu Yue controlled three fourth-level avenues, and he couldn't wait to brag to other demons.

But now.

The Devouring Demon God was thinking about how to cover up Liu Yue's strength.

These demons are used to seeing geniuses in the world, even the peerless geniuses in the eyes of the world, they don't know how many they have seen.

The level of genius that Liu Yue showed before was not enough to cause any fear.

But now...

Once her talent is exposed, she is afraid that she will cause fear from other demons.

I have to help her cover it up.

It's a little troublesome. But overall, it's a happy trouble.

The Devouring Demon God looked at Yun Jin's situation for a while, then closed his eyes.

The eight demon gods were sleeping most of the time.

It's not that they wanted to sleep.

But during the polar day, only by sleeping can they return to the eternal night and continue to grow in strength.

Although the growth rate is already very slow.

But.

It's better than nothing.

The Devouring Demon God would occasionally wake up and look at Yun Jin.

But every time he looked, Yun Jin was studying secret books on different floors.

The Devouring Demon God was slightly confused.

Usually, you can just choose one or two that are most suitable for your own practice.

Why did Liu Yue study so many secret books at the same time?

However.

The Devouring Demon God didn't take it too seriously.

He guessed.

Liu Yue had been wandering outside for many years and had never seen anything good, so she suddenly saw so many secret books and wanted to see everything.

The Devouring Demon God was tolerant of this.

This child's experience is pitiful, and it is normal that she has never seen anything good.

These ten years, just let her gain experience.

The Devouring Demon God fell into a deep sleep again.

Time flies.

There are only three months left before the ten-year agreement.

Yun Jin also woke up from the long comprehension.

A hint of surprise flashed in her eyes.

Under the guidance of many books, she practiced immersively for ten years, and the harvest was also extremely huge.

The Devouring Demon God's collection has a lot to do with the avenue he practiced.

After this wave of crazy learning, he gained a lot, but the most important thing was the two second-level avenues.

The second-level avenue Devouring Avenue and the second-level avenue Dark Night Avenue, Yun Jin practiced these two avenues to the last step, and only needed to condense the last trace of true meaning to completely control the avenue.

Yun Jin guessed.

The Devouring Demon God must have completely controlled the two complete second-level avenues of Devouring Avenue and Dark Night Avenue!

In addition!

How many avenues did he control in these extremely long years, and whether there were other second-level avenues, Yun Jin dared not imagine.

She could only be sure.

The eight demon gods should not have been able to control a real first-level avenue.

Otherwise.

This polar night demon world would have been unified long ago.

Another gain during these ten years was the Dao fruit in the Azure World, which had been completely absorbed by her in a subtle way.

Yun Jin now controls a considerable number of Dao laws.

She is working hard to catch up with the accumulation of tens of thousands of years of these demon gods in a few decades.

It is very difficult, but she must do it.

Yun Jin's attainments in the Dao are no longer what she could have imagined before.

After comprehending the Five Elements Dao and breaking through the third level of the Yin-Yang Secret Book, Yun Jin felt that no matter how much she comprehended the Dao below the second-level Dao, her strength would not be greatly improved.

For example, she directly comprehended the third-level Dao, the Star Dao, and Yun Jin did not seriously worry about what true meaning to enter the Dao, and casually took the meteorite true meaning that came with the sword method to enter the Dao.

After all, the level of the Dao is there, and no matter how strong the true meaning of the third-level Dao is, it will only be crushed in front of the second-level Dao.

Now.

Yun Jin has two more second-level avenues at the point of comprehension. When they are all comprehended, she will have three second-level avenues.

In addition, she has comprehended the third level of Yin-Yang avenue.

With such preparation, it is unknown whether it is enough to deal with the calculations of the five immortal emperors.

Yun Jin is counting her gains.

The next moment.

She was instantly transferred out of the library and returned to the edge of the magic pool.

The clone of the Devouring Demon God showed her a kind smile: "There are only three months left until the agreed time. Reserve one month to travel, and you can soak in the magic pool for the next two months. First improve your strength to the peak of the Heavenly Demon."

"Yes." Yun Jin responded respectfully, and then walked into the magic pool.