Taking a deep breath, Chen Dui once again put his perception five meters away.

In the blink of an eye, the simple water world disappeared, and the ubiquitous water pressure disappeared without a trace. Chen Du only felt light, but he was a little unaccustomed.

The surroundings are white and foggy, and you can't see your fingers. Chen Du was a little dumbfounded, and he couldn't see anything else in front of him except for the extremely dense white mist.

As soon as his mind moved, Chen Dui vaguely caught something in his heart. Almost subconsciously, he urged the fusiform sensory vortex in his body, and the perceptual filaments immediately emanated outside the body.

Suddenly, the formless and substantiated white mist seemed to have been stimulated by something and began to change.

Like living beings, they activate all at once, surging and crashing, making seemingly disorderly movements. However, for some reason, Chen Duan always felt that the way the white mist moved seemed to imply some unknown law. He simply closed his eyes, trying to catch the white mist.

The effect of his adjustment was quite obvious, and he immediately noticed that the white mist was divided into many small torrents, some hedged against each other, some twisted with each other, and some slowly penetrated into each other...... "Test score: perceptual sensitivity index 35. Suitable for primary level training. The old man's voice suddenly sounded, and it also woke Chen Du up.

As soon as he finished speaking, the dense white fog around him rapidly faded at a speed visible to the naked eye, until it completely disappeared. Immediately, Chen Dui found himself standing in the void again. In front of him, five cards of different colors floated.

I was happy that something I had been waiting for for a long time had finally appeared. According to previous experience, Chen Duan stretched out his finger and touched each card.

"Fold Yan Poka Method: Sensing Sensitivity Index 60 is required."

"Intermediate Chip Theory Tutorial: Sensitivity Index 70 is required."

"Dynamic Demonstration of Seven Energy Structures: Sensitivity Index 80 is required."

"One-breath perceptual exercise: a perceptual sensitivity index of 90 is required."

"Energy Structure Deduction Model: Insufficient Conditions to Trigger."

This string of information made Chen Du's chest tight. None of them are available to me now. He noticed that the information that popped up on each card, except for the last one, all four of the cards mentioned a concept: the perceptual sensitivity index. This is a concept that Chen Du has never come into contact with, even in other books.

But the result just now is that his perceptual sensitivity index is only a pitiful 35. According to the information revealed by those cards, the perceptual sensitivity index is almost on a scale of ten. Even the distance from the least required Fold Yan Poka is still 25, which is a gap of two and a half levels.

Chen also noticed that the last card, the "Energy Structure Deduction Model", was the only one that did not mention the perceptual sensitivity index, but directly judged that his condition was insufficient.

"Elementary Level 1 Perceptual Sensitivity Training Initiated." The old voice interrupted Chen Dui's thoughts.

Without waiting for Chen Dui to react, and without asking for his opinion, the mysterious card forcibly took him into the so-called primary level of perceptual sensitivity training.

The scene in front of him changed again, and many tadpole-like energy bodies appeared around Chen Dui, constantly swimming at high speed. They are very agile and difficult to fathom.

Just when he was a little confused, a light curtain suddenly popped up in front of him. What is written above is very simple, it is the so-called training rules. Chen Duan needed to determine the number of these energy bodies around him, and the shorter the time it took, the higher the score he would get.

In such cases, it is completely useless to use the eyes, only to perceive.

After reading it, Chen Du decided to give it a try. He closed his eyes and released his senses with all his might.

It was already three hours after I exited the mystery card. Although the training of perceptual sensitivity is not very physically demanding, it is undoubtedly extremely depleting. After only two hours of training, he felt a little unbearable, not only did his internal sensory control struggle, but his brain felt as if it had been hollowed out, which was extremely uncomfortable.

After withdrawing, Chen Du couldn't help but fall into thought.

It may seem that this round of training is completely unfamiliar, but if you look closely, it is not difficult to find the connection between the two and the content of the previous round of training.

In the previous round of mystery cards, the core content is to exercise perception, and this round is to train the sensitivity of perception. There is clearly a direct connection between the two.

What intrigued Chen even more was the five cards, each representing a piece of content. Whether it is the intermediate chip card theory or the folded Yan Poca, it makes him salivate.

As for the knowledge of energy structure, it is a bit too profound for him now. This has involved the core and most essential content of the card system.

It's just that the difficulty of this round is really a bit big, and Chen Du can't help but smile bitterly. In the training just now, he was tortured to death, but with little effect. He was so unfamiliar with this alternative use of perception.

Of those five cards, none of them were able to be triggered by him right now. Not only that, but he wasn't close to them, which meant that he didn't want to trigger those five cards in the short term. The only thing he can use now is the reward for the Swordfish Challenge. Although there are not many specific skills, for him, the same thing as this outline is still extremely valuable.

The few techniques mentioned above alone made him feel a little amazed.

The maker of this mysterious card is indeed a pedantic celestial, enough to make Chen Dui worship it. For example, the techniques mentioned above, such as how to maintain absolute perceptual calm in the midst of exciting sports, are all incredible. The most incredible thing for him is that as mentioned above, he used his sensitive sense to test and find the most suitable power technique.

If Chen Du had seen this outline earlier, he would have been able to complete the Swordfish challenge with ease. Compared to it, some of the little skills that Chen Du had honed in his swordfish training were so simple that even he felt a little embarrassed.

If there is anything that surprised Chen Du the most this time, it was that he didn't find a way to make a four-star card.

Originally, he had high hopes for this mysterious card, hoping to find the method and trick of making a four-star magic card in it. Because this way, he can receive the commission to repair the four-star cards. However, what I didn't expect was that there was not a single bit of four-star card skills in this.

This couldn't help but make Chen Du feel a little disappointed. Although the contents of those five cards are good, they are not something that can be saved by themselves right now. What he needs most now is knowledge of four-star cards.

Flipping through the card sent by Ning Yan, the wry smile on Chen Duan's face became a little heavier. Sure enough, there are always twenty cards in this stack, of which eighteen are four-star cards and only two are three-star cards.

A bitter smile returned to a bitter smile, and he couldn't help but do it, so he had to draw out the two three-star cards.

Although these two three-star cards are exquisite, they are not complicated for Chen Du, especially since he also has the analytical weapon of card theory.

The two cards were quickly repaired, and early the next morning, Chen Du rushed to the library here.

Since there is no knowledge about four-star cards in the mystery card, you can only learn it through other ways.

He was very aware of his situation, although he had Mrs. Ning's plea, but if he didn't show a certain value, his situation would only get worse and worse. No one wants to raise someone who can only eat white rice, and that's the same everywhere.

Until now, the amount of materials he consumed here was also a staggering figure, although there were no precious materials. And once it is determined that he is worthless, will the Ning family send him away amicably?

That's simply not possible! Chen Du understands the cruelty of society very well.

Fortunately, the books in the library card are very complete, and Chen Du immediately threw himself into it.

During the time when Chen Duan was learning four-star cards, he also took the time to make a shuttle card. This shuttle card only uses ordinary materials, but on this card, Chen Dui uses the theory of chipping he has learned almost to the extreme.

The most direct result of this is that the power of this shuttle card is not much different from that of ordinary Samsung shuttle cards, but in terms of transmission frequency, it has an extremely amazing effect.

Theoretically, as long as the Kasho perception using it is strong enough, it is capable of firing five energy shuttles in a second.

As you can imagine, this is enough to sprinkle a shuttle rain on the battlefield, and the high-density blows make the enemy unavoidable. Compared with it, the tail shuttle is as slow as an old cow dragging a broken cart. He's made a lot of progress in his longitudinal tail spindle, but he still needs a firing time of one and a half seconds.

However, the lethal power of the shuttle makes it still a formidable weapon.

This shuttle card was named "Yu Shuttle Card" and then thrown to Lili for consignment, and his price was thirty contribution points.

Here, he doesn't have to worry about using chips. On the contrary, he now shows his worth, which is more beneficial to his position.

He didn't pay much attention to the matter of Yu Soka. Now his time schedule is extremely full, in addition to going to the library to learn the knowledge of four-star cards, he also has to do that perceptual sensitivity training every day. As for perceptual exercise and fitness, it is thunder.

The stuffed Cheng Cheng made him have no time to pay attention to other things.

(To be continued)