Anping City, Ningxinguan.

Pei Yi hung up the phone with a blank face, and behind him, there was a little Taoist boy standing.

"Senior Brother Pei, did the master call you over......

"Huh? Oh......" Pei Zhi nodded, turned around and took two steps, his figure paused, turned back again, and asked quietly:

"Senior brother, where is the master?"

"Of course it's in the quiet room, his old man can't move at this time every day, it's all there, why did you forget, senior brother."

Pei Zhi smiled a little embarrassed, adhering to the principle of saying more and making more mistakes, and walked directly towards the living room of the Taoist Temple.

Damn, how would I know!

Shouldn't I be studying in an experimental high school at my age?

How could you not think about it and run to the mountains to be a Taoist priest?!

……

Because he didn't understand the situation, Pei Zhi didn't dare to act rashly for the time being, he just wanted to familiarize himself with the environment a little, and then make up a reason to go down the mountain and go home.

"Master......"

Pei Zhi quickly found the so-called master's room.

Ningxinguan is a small Taoist temple, located in the northeast corner of the coast of Anping City, a scenic spot halfway up the mountainside, as far as the eye can see, you can see the endless sea. But the previous Ning Xinguan was not famous, and it was not until recent years that Pei Zhi worshiped the Taoist Temple, because the interpretation was quite accurate, so that Ning Xinguan gradually became famous.

Of course, the strawberry Pei Zhi who crossed over didn't know anything about these situations.

Pushing the door in, there was no white-bearded old Taoist priest in the room as Pei Zhi imagined, only a middle-aged man wearing casual clothes and sitting on the sofa, playing with his mobile phone intently.

"Come on, sit down!"

When the middle-aged man saw Pei Zhi coming in, he greeted him very warmly, how could he have the slightest image of a Taoist priest, and he was completely full of Jianghu spirit.

Pei Zhi sat quietly on the side, carefully observing the middle-aged man's situation.

"Pei Zhi, ah......" The middle-aged man put down his mobile phone, Pei Zhi glanced at it, and found that it was a stand-alone game that had been outdated for a long time in the strawberry world.

Rubbing his hands, the middle-aged man took out a red envelope from his pocket and handed it over, and said with a smile: "Old rules, this is your cancellation fee for this month." ”

Pei Zhi observed the middle-aged man's expression, hesitated a little, and did not reach out to pick it up.

The middle-aged man smiled a little embarrassed: "That...... I know that our agreement has expired, do you think this will work, I will give you another 10%, how about you stay in our Taoist temple for another year? ”

Pei Zhi: "......"

The thought in his heart turned sharply, Pei Zhi suddenly stood up, picked up the red envelope on the table, turned around and walked out directly, leaving a message: "I have an uncomfortable stomach, go out first!" ”

"Huh! Twenty percent! Twenty percent is always okay, right?! ”

The middle-aged man shouted with some eagerness.

……

Half an hour later,

After packing his luggage and changing into ordinary clothes, Pei Zhi stood at the door of the Taoist temple, looked at the middle-aged man standing in front of the incense hall and the little Taoist boy he didn't know, turned around and resolutely went down the mountain.

Taking advantage of the excuse, Pei Zhi used his mobile phone to surf the Internet, inquired about the situation of this so-called peaceful mind, and peeled off the cocoons from the comments of tourists on the travel app, and called home to inquire, and at this time he already had a general understanding of the situation.

"Deceived Kangxi"

Of course, what gave him the confidence to go down the mountain was that he found out the contract he signed with a middle-aged man.

It is not clear whether the contract is valid or not, but it has already made Pei Zhi understand why he appeared in the Taoist temple.

Three years ago, Cheese Pei Zhi graduated from middle school, and did not choose to go to high school, but after discussing with his family, he came to Ningxinguan and became a resident Taoist child......

Pei Zhixin gradually sorted out the situation.

But it was a coincidence that the time I crossed over was just right, just when the contract ended.

When he went home to see his father, Pei Zhi's mood gradually became excited, he didn't think much about the things in the Taoist temple, came to the foot of the mountain, took a taxi casually, and reported the address of his home......

……

……

Specialized alleys.

Just when Pei Zhi took a taxi home, Lin Chaoxi also had an "accident" here.

"So, whether it's the strawberry world, or it's in the cheese world; It doesn't matter if I'm a middle school accountant or a university professor, your mother is Qiu Yue, and she died in childbirth when she gave birth to you? ”

Lao Lin had tears in his eyes, and his voice trembled faintly.

Coming to the "new" parallel world, Lao Lin was naturally extremely curious and eager to understand what was different about himself in the parallel world, but he soon found that no matter in which world, there was no trace of the hostess's life at home.

The extremely smart Lao Lin realized something in an instant, and got an answer from Lin Chaoxi's mouth......

Qiu Yue is dead!

Lao Lin sat on the bed in a daze, holding the photo of Qiu Yue found from the crack in the bed in his hand, and the tears in his eyes fell down with a click.

His memory is still stuck in 1993.

At that time, he and Qiu Yue had just started dating......

……

Glancing at Lin Chaoxi, who didn't know what was wrong, Qiao Shan glanced at her and slowly sat down beside Lao Lin.

"Old Forest ......"

Qiao Shan said softly: "Actually, this may be the meaning of your crossing. ”

"Whether it's the strawberry world or the cheese world, things are facts that have happened, but in your world, Lin Chaoxi has not been born yet, and her mother has not died, you still have a chance to save her!"

Lao Lin Huo Ran raised his head!

"That's right! I still have a chance! ”

Lao Lin suddenly became excited, threw up his sleeves and wiped his tears, and his emotions were withdrawn from sadness: "I have been here since 1993, Qiu Yue has just had a relationship with me, and she is not pregnant yet!" As long as I prepare in advance, I can change this tragedy! ”

Lin Chaoxi turned around and covered his mouth to prevent himself from crying.

"But how can I go back?!" Lao Lin wondered.

Knowing that Qiu Yue would die in childbirth when Lin was born, Lao Lin was in no mood to pay attention to the parallel world, and just wanted to find Fang Yu to return to his own world! Back in 1993!

"Two possibilities!"

Qiao Shan stretched out his palm, curled his index finger, and said: "The first possibility, maybe the same as the previous group photo, when Pei Zhi and I record that conversation at the specified time, you can go back!" But that's just a way to get back to the strawberry world, I don't know if it will take you back to 1993. ”

"The second possibility! I've guessed the reason for your crossing before, and I think your crossing has something to do with the P/NP problem! If you can prove p=np, maybe you can go back! ”

"Proof P=NP?"

Lao Lin couldn't help but widen his eyes, he could think that the formula in that tower was P=NP, and the way to travel through the world of strawberries and cheese was to erase the formula, in short, everything that didn't make sense was related to this millennial problem.

Perhaps it proves this dilemma...... Can you really travel back?

……

"But I'm just a college student, I haven't finished my studies yet, and my knowledge reserve ......"

"That's exactly why I'm guessing the second possibility!" Qiao Shan Zhengse said: "The old forest of the two worlds, why is it the old forest of the cheese world that proves the P/NP problem in stages, and why do you cross it with us for the second time?" ”

"Maybe God is destined to let you step on the shoulders of 'yourself' and solve the problems of this world!"

"I ......"

Lao Lin's eyes changed, and he suddenly clenched his fists, gritted his teeth and said firmly: "Okay!" Isn't it just a P/NP problem? What's the big deal! For Qiu Yue, fight! ”

……

It's getting late.

Under Qiao Shan's flickering, the old strawberry forest with dementia plunged into the research results of the old cheese forest.

Qiao Shan and Lin Chaoxi sat quietly on the steps in front of the house.

"You said, if there are really other parallel worlds, Lao Lin can really go back to 1993, how nice it would be......"

Looking at the sunset on the horizon, Lin Chaoxi smiled bitterly and murmured softly.

Qiao Shan glanced at Lin Chaoxi sideways, smiled slightly, and did not speak.

There will be this opportunity......