The rigorous Yufei did not relax because of this, and directly used the technology it had just learned on the Internet, by calculating the different reflections, refractions and other paths of light in countless frames, so as to calculate whether there was something that could not be captured by a monitor in a certain frame.

This is easy to say, but the amount of computation is incomparably huge, because the security monitoring here can store hundreds or thousands of frames per second due to the presence of powerful cultivators. Yu Fei didn't know the exact time when the cultivator appeared, whether he entered from the door or from somewhere else, and the difficulty of calculating the search increased exponentially.

Even if you search all the images in the end, you may not be able to find the frame in question, because this method is only suitable for low-level cultivators, and it is also a careless low-level cultivator.

The reason why cultivators have such a high status in this world is because of their great power, and whether a low-end security monitor installed in the slums can catch it really depends on luck......

Yu Fei wasn't sure if there was something wrong on the other side, but it still allocated most of its resources to calculate, it knew that in this city, the slightest mistake could be shattered, and it had to be cautious.

Fortunately, it was not troublesome to get the information and account that Ning Yunshu wanted, it was quickly done, woke Ning Yunshu up, and briefly explained the matter.

Ning Yunshu didn't dare to be careless when he heard it, and let Yu Fei calculate with all his might.

Yu Fei was embarrassed, and said to Ning Yunshu embarrassedly: "Sister, I'm sorry, with my ability, it will take at least 2 ......days to calculate whether there is a problem with all the pictures during the period from our arrival to the time when the monitoring screen is reversed."

Ning Yunshu: "......"

It seems that the workload is indeed too much......

If the other party is really malicious, you can do a lot of things in 2 days......

"Then you first check the information of the owner of the house on the other side, and whether there has been any intersection or dispute with me or the person or the owner of the house. ”

These can be easily known by checking the security monitoring in front of the two houses, so soon, Yufei gave a negative answer.

"That's ......"

Ning Yunshu's right hand gently tapped on the edge of the bed, and after a while, he made a decision: "Yu Fei, using your current status to rent another house in a place where the poor are different, will it attract attention because of your abnormal behavior?"

Yufei searched for a moment and gave an answer: "This is not true, just say that the house is not satisfied with the check-out, do not have the deposit that has been paid, the homeowner will agree if he has to earn, this is very common." ”

"But......" Although Yu Fei's answer was in line with Ning Yunshu's heart, she still gave up after thinking about it again: "Let's rent a house in another place with another identity, didn't there be a few alternatives before?" ”

"Okay, sister, I'll do it right away. ”

Yu Fei nodded in response, and after handing over the information and account number to Ning Yunshu, she was busy renting a house.

Soon, in the confusion of Kabu's face, the two of them pretended to go out and be familiar with the surrounding environment, wandering around downstairs, and bought things they liked by the way, and after moving things up and down a few times, they suddenly disappeared.

The man who was originally staring in front of the surveillance screen, from nervous to relaxed, broke out in a cold sweat when he saw this, and after confirming that the surveillance target had disappeared for a long time, he had to pick up the communication stone......

The place where he moved to for the second time was clean, although it was not as easy to hide his identity as in the slums, but after Yu Fei scanned and observed for a period of time and said the sentence "I didn't find anything wrong", Ning Yunshu was satisfied with this place.

The days passed so busy and "peacefully" for 3 days, when Ning Yunshu was busy reading materials and studying, and Kabu was busy retreating and cultivating, Yufei suddenly "again" found that the security monitoring installed by the neighbor outside the door "again" changed the direction, and hurriedly told Ning Yunshu.

Ning Yunshu took his eyes off the data light screen, his eyes were full of confusion, and he was in a daze for a few seconds after hearing Yufei's report before he reacted to what was going on.

"Oh, oh, yes, there was such an incident before. Ning Yunshu pressed his temples hard, and was a little awake under the stimulation of pain.

Most of the things she has learned in the past few days are unfamiliar to her, even if Ning Yunshu is used to gnawing on unfamiliar materials, even if Yu Fei tries her best to help her find answers to various questions, dizziness is inevitable.

After sobering up a little, first go through what Yu Fei said in his mind, Ning Yunshu's first reaction was to ask Rainbow about Kabu's movements in the past three days, and after getting the reply of "never going out, everything is normal", he thought for a while, and then asked Yu Fei in a low voice:

"You're saying that even though we moved, the neighbors' security surveillance reversed direction?"

"Yes. Yu Fei replied in the affirmative.

Ning Yunshu asked again: "Are you sure there was nothing wrong with us when we first came, it was just transferred today?"

Yu Fei said with great certainty: "I'm sure the monitoring is the direction that was just turned 11 minutes ago. ”

"That means that someone is coming for us, not for the identity of the previous renter. ”

Ning Yunshu came to the conclusion that if he came for the identity of the previous renter, he would not have spent so much effort and 3 days to follow after renting a house under a different identity!

She just calmly said the conclusion of the analysis, but Yufei, who was on the side, heard this but felt that she was incompetent, and she didn't sweep the tail along the way and let the other party follow her.

Therefore, Yu Fei felt very low, but it was so, and it could only apologize in a low voice: "I'm sorry sister, it's my lack of ability......"

"I don't blame you, you've done your best. Ning Yunshu waved his hand, interrupted Yu Fei's words, and comforted softly: "If you weren't careful, relying on me alone, maybe you wouldn't be able to figure out the situation now!"

If it weren't for Yufei's second discovery, maybe she would have relaxed because she felt safe after changing her residence......

"Sister, do you want to change your place of residence now? I will be able to rent another house soon. ”

"Let me think about it......" Ning Yunshu took out a bottle of green water and drank it, thinking calmly.

This is already the second place to live, even if you change to the third one now, there is no guarantee that the other party will not find it again.

When leaving the first residence, Yu Fei had carefully modified and erased the traces along the way, but the other party was able to find another rented house in just three days, indicating that the other party either had enough energy or special abilities.

This is by no means reassuring to change another residence, Ning Yunshu even feels that changing another residence will only be more dangerous.

Changing from the first residence to the second residence, the people in the shadows could still understand that Ning Yunshu was trying to shake off his tail.

But once Ning Yunshu changed from the second residence to the third residence, the people in the shadows would definitely know that Ning Yunshu had already discovered that he had asked the neighbors nearby to turn around for monitoring!

Once the people in the shadows change to a surveillance method that is not easy for Jade Fei to find, Ning Yunshu will only be more dangerous!

But since the other party is so capable, why is he just monitoring and not doing anything? Ning Yunshu was puzzled.