Ronin: Start with the cotton

"Ji Jiang, I have to go back to school, I can't cook anymore, let me order takeaway for you."

Lin Zhaoxi said to Qiao Shan after finishing the phone call.

"I can order it myself." Qiao Shan looked at Lin Zhaoxi who was packing his backpack, and asked, "Are you going to resign?"

"Ok!"

Lin Zhaoxi nodded, and smiled with some relief: "Go and go through the resignation procedures! That director still wants to manipulate my regularization system and let me go on a blind date with his nephew! I'm quitting!"

These words were a bit heroic, and Lao Lin, who was eating melons, lay on the sofa and gave Lin Zhaoxi a thumbs up: "Hero of the female school, classmate! There is nothing wrong!"

Lin Zhaoxi and Qiao Shan looked at each other and smiled at the same time.

……

……

As soon as Lin Zhaoxi left, the bunk bed purchased online was delivered to her back.

Qiao Shan set up the bed in the living room according to Cheese World's arrangement, and after tidying up, half an hour passed.

In the process of tidying up the room, Lao Lin who suffered from Alzheimer's disease was also easily handled by Qiao Shan.

Because after Lao Lin was injured, he always thought he was a 20-year-old boy living in 1993. Qiao Shan simply told him that he had traveled through time, and then threw him in front of the computer.

"Eat, Lao Lin!"

After tidying up the living room, Qiao Shan called out to Lin Zhaoxi's room.

The computer was in Lin Zhaoxi's room. Old Lin was watching the 1994 ball game with relish. Hearing Qiao Shan's call, he walked out in three steps and looked back. Looking at the sumptuous food on the coffee table, he rubbed his stomach immediately, and He sat down, rubbed his hands, and happily said:
"It's very rich, with fish and meat!"

Qiao Shan smiled and handed over an unopened disposable chopsticks, and said, "Isn't this welcoming you to 2018?"

"Tsk tsk! Don't say it!" Lao Lin said with emotion: "Your era is more advanced than ours in 1993! Look at that computer system and this smartphone! I couldn't even imagine it at that time!"

Qiao Shan: "..."

Your dementia looks like that!

If it wasn't for sure that you have dementia, I really thought you had traveled through time!

but……

Qiao Shan turned his head and looked out of the window, as if passing through time and space, and looking at an unknown time and space, there seemed to be stars flowing in his eyes.

Time is ticking in Cheese World...

……

……

Cheese world.

Qiao Shan, incarnation of Xiaodang Aimin, knocked on the door of the bedroom, stood at the door, waited, and Xiaolin Zhaoxi's voice came from inside: "Come in."

Pushing open the door and entering, looking at Xiao Lin Zhaoxi who was curled up at the foot of the bed, Qiao Shan said softly, "It's time to eat..."

Lin Zhaoxi hugged her knees with both hands, raised her head and glanced at Qiao Shan, her eyes lost a bit of the maturity of an adult, and a bit more of the childishness that should be at this age, and said sullenly:
"Won't Lao Lin come back at noon?"

Qiao Shan sat by the bed: "He has an academic meeting, and he will come back in the afternoon, so let us go to the restaurant, but I think my craftsmanship is better than the chef in the restaurant, so I made a dark meal for you."

Lin Zhaoxi couldn't help smiling, but quickly disappeared.

Looking at the dull Xiaolin Zhaoxi, Qiao Shan thought for a while and asked, "Are you still afraid?"

Lin Zhaoxi shook her head, bit her lips, looked at Qiao Shan, took a deep breath and said, "I know she didn't come here on her own initiative, and she also helped me find my father. I'm actually very grateful to her."

"That's because I'm worried that my studies will decline..."

Qiao Shan thought about it for a while, then shook his head and laughed and said, "Indeed! She relied on being an adult to lift you up, and now she is a top student. You must be feeling very uncomfortable now!"

Lin Zhaoxi covered her face and sighed.

She is indeed troubled by this now!
Strawberry Lin Zhaoxi, the adult version of Lin Zhaoxi, won the Jin Cup Mathematical Olympiad gold medal, and her cheese Lin Zhaoxi was just an ordinary child, an orphan who had just found a family. She was neither a genius nor a top student.

"I'll help you with tutoring after dinner?" Qiao Shan asked with a smile: "The content of elementary school is still very simple. With me here, don't worry, I'm sure your status as a top student will be unshakable!"

"It's funny to say, we were orphans before, but when we woke up, we became brothers and sisters!"

"It's siblings!" Lin Zhaoxi emphasized.

After giving Qiao Shan a blank look, Xiao Lin got out of bed day and night, sniffed his nose: "It smells so good, what did you do?"

"Fish-flavored shredded pork, braised pork ribs!" Qiao Shan said.

Lin Zhaoxi stretched out her hand: "Xiao Linzi! Where's my rice?"

"Okay! I'll serve it up to you, Madam!"

Qiao Shan turned around with a smile and went to the kitchen to serve rice, and shook his head helplessly. Lao Lin still changed himself to Lin Aimin, really...

……

……

Withdrawing his gaze, Qiao Shan looked at Lao Lin who was devouring strawberries in front of him, and put down the bowl and chopsticks.

"Old Lin, go out to play after dinner?"

"Okay!"

Lao Lin wiped his mouth excitedly, his eyes sparkled: "Actually, I wanted to tell you this just now, but I'm sorry...hehe..."

"Then when Lin Zhaoxi comes back, let's go out for a stroll together!" Qiao Shan decided.

Speaking of Lin Chaoxi, Lao Lin immediately gossiped: "Xiao Ji, this Lin Chaoxi, my daughter... are you two in a relationship?"

Qiao Shan shook his head and said with a smile, "No."

Lao Lin looked like I was an intellectual, and you couldn't fool me: "Don't lie to me, in the state of you and my daughter, you hugged each other in front of me, and you said you weren't in a relationship?"

"Hey... that's right! Are you a big star?"

Suddenly thought of something, Lao Lin didn't wait for Qiao Shan's answer, and continued to ask.

"You know what?"

"Hiss..." Lao Lin frowned suddenly, looked Qiao Shan up and down, and said solemnly: "I said, although I have traveled here, Lin Chaoxi is my daughter in name after all, you kid, don't you want to see me?" You don’t want to admit that you’re in someone else’s shoes, do you?!”

As he spoke, Lao Lin rolled up his sleeves.

Where is this going?

Qiao Shan didn't know whether to laugh or cry: "I said, Lao Lin, your brain can really make associations! All right! Since you want to know, then I'll tell you!"

His expression became serious, he looked left and right, leaned in front of Lao Lin, and said in a low voice: "Don't you want to know, how do I know that you have traveled here?"

Lao Lin's spirit shivered: "You also traveled here?"

Qiao Shan shook his head, and said seriously: "Actually, Lin Zhaoxi and I just traveled back from a parallel world. In that world, we traveled to 2006..."

He briefly summarized his time-traveling experience, and finally said: "So as soon as you wake up, I know that you are a person who traveled from another parallel world, and you also traveled from 1993!"

"I see!"

Lao Lin was shocked, and felt that this was the truth of the matter.

and many more!

Suddenly, Lao Lin's eyes lit up, and he said, "You mean, you are in the cheese world, right? You said that you are in the cheese world. In 2006, I proved the P/NP problem step by step?!"

This is what Lao Lin is most concerned about!
Qiao Shan nodded and said, "Yes! In the world of cheese, you proved [graph isomorphism is NP-complete] in 2006, and you are already famous."

"But you don't have to be excited, the process of the parallel world is not consistent. For example, in the current world, you are already in your 40s, but there is still no phased proof of results."

"Oh……"

Lao Lin rubbed his chin, lost in thought.

Two parallel worlds, one with academic achievements in 2006, and one with nothing in 2018, are really different.

What about my world?
Lao Lin looked at Qiao Shan and said, "Assuming that the world I live in is the world of mousse cakes, that means I may prove P/NP before the millennium, or I may not be able to prove P/NP in my lifetime, right? ?”

In fact, mousse cake and fruit cake are not a classification method...

Qiao Shan wanted to complain, but he still didn't say it, just nodded: "Maybe."

mousse world...

……

There was the sound of a key being inserted into the lock, and the door was opened.

Lin Zhaoxi was holding the cardboard box, and as soon as he came in, he saw Qiao Shan and Lao Lin chatting happily, and his depressed mood was swept away.

"I am back!"

Glancing at the coffee table, Lin Zhaoxi said, "Have you all finished your meal?!"

"It's over! I'll wait for you to come back and hang out together!"

Lao Lin, whose memory stayed at the age of 20, stood up heartlessly and said cheerfully.

"I left you a meal."

Qiao Shan got up and went to the kitchen to take out the reserved meals, and gave Lin Zhaoxi a wink, motioning for her to come and talk...