The Two World Line Theory

by fayfairyelf

Unknown attractor field, unknown world line: "Are you ready, Okabe?". He breathed heavily and tried to calm himself, before he answered, "Ready when you are". With a flick of a lever a bright light luminated the room, as he disappeared. Sidenote: this is kind of a sequel of my other book, 'The Disclosure of the Domino Effect', but you needn't have read it.

1. Chapter 1

DISCLAIMER: I do not own any of these characters (besides maybe one) that appear in the story or the concept of the story or Steins;Gate! This is just a fanfiction and should not be taken seriously!

"We're at the lab!", Mayuri yelled, maybe a bit too suspicious, joy lining her face while slowly walking up the stairs. "Yes, indeed we are", Okarin stated, chuckling afterwards and looking up past the CRT shop, just to see an open window and a set of eyes stare back, though he couldn't make out who it was, since the sun was shining directly onto the glass that was covering the person's face. "And we still have enough time to prepare for the surprise party", he added a bit shaken up and scared, while walking up the stairs. But after he went up Mayuri stood beside the door, not being able to keep a smile from her face. "What's wrong, Mayuri? Why don't you open the door?", Okarin asked sceptically narrowing his eyes. "No reason", Mayuri stated, trying to keep her non existent poker face. "Intruiging", Okarin said, not really believing Mayuri, and averted his gaze to the door. "I'm coming in!", he yelled, not really knowing what to expect, and opened the door. Suddenly a popping noise and cheers filled the room. The light turned on, though it didn't effect the brightness in the room, and Okarin saw all of his fellow lab members standing there. Even Kurisu! "Suprise!", Mayuri yelled with a playful grin on her face. "What are you- Kurisu!? You were supposed to be the getting surprised! Not me!", Okarin yelled, shocked to see his red-headed friend standing in front of him with a sky smile. "I arrived earlier than expected, so we decided to surprise you", Kurisu laughed, slightly blushing and scratching her cheek. Then Okarin abruptly turned to Mayuri and looked at her with a hurt face, of course fake. "And you were their accomplice?!", he asked lifting his eyebrows while the others silently watched, how Okarin was going to react. "Well, Mayushii wanted to surprise Okarin once in a while... Ehehehe", Mayuri answered and nervously laughed afterwards. How had Okarin not seen through Mayuri. Suddenly Okarin started laughing like a crazy person, clutching his stomach in pain. He found this too amusing. It was so out of the blue that Kurisu believed that he lost his mind, for a split second. Straight afterwards he rummaged in his lab coat pocket and pulled out his red phone, just to hold it to his ear and talk to himself, again. "It seems like I, Hououin Kyoma, have been tricked by my own lab members. More on that topic later", Okarin stated. "And I thought you changed, after saying my name", Kurisu sighed and slapped her hand against her forehead. "In truth, this is your party though, Makise", Daru added, looking at Kurisu. "So let us commenced operation party popper!", Okarin yelled, lifting his hands up in the air dramatically and glancing Kurisu in the eye while smiling brightly.

"Chris-chan, how was it in America?", Mayuri asked with a curious glow in her eyes. "We kept on working on the Amadeus system that I told you about", Kurisu answered, looking, no rather staring at Okarin. "What are you gawking at, Christina", Okarin asked lifting his eyebrows at the now blushing girl. "N-nothing", Kurisu muttered, looking away from Okarin, "I was just signaling that I told you about the Amadeus system". "Ah right. The memory thing", Okarin stated while grabbing his bottle of Doctor Pepper. "What memory thing, nya?", Ferris asked, curiously looking at Kurisu. "The AI runs on memories of people and creates a charakter that's alike the person's memories", Kurisu tried to explain it simple enough, so that even Mayuri could understand. To her luck. "That's a bit to high for Mayushii", Mayuri stated and giggled afterwards. "I also don't get it", Ruka confessed, slightly blushing. Perhaps that was also just the tint of his cheeks. "Me neither, nya", Ferris sighed, wanting to start some made up story, but Kurisu was fast enough. "It's not that important", Kurisu laughed nervously and hated herself for bringing up science stuff in front of all the other lab members. There was a long and painful awkward silence. "U-uh... I'll grab some fresh air", Kurisu stuttered while hastily running out of the lab. "Wait up, Kurisu", Okarin yelled after her and stood up. "I'll go look after her", he explained and ran after Kurisu shortly after.

"I wonder what happened to Chris-chan?", Mayuri asked, pure confusion in her tone. "Yeah, me too. I've never seen her so flushed", Rukako sighed, looking a bit gloomy. There was another silence. "It's not the same, huh, without the two", Dary stated and looked a bit unsurely around the room. "I think I'm going home for today. I hope you don't mind, Itaru-kun", Yuki confessed and stood up from Daru's lap. "Aw. See tomorrow, Yuki-chan", Mayuri said a bit sad. "Bye", Yuki said smiling sadly and left the lab. But suddenly the remaining lab members heard panicked footsteps rush up the stairs and stared at the door in foreshadow. All of them were expecting Yuki for some reason. That was the most logical to think. Maybe she had forgotten something. But after a violent and noisy creak of the opening door, followed by a few more footsteps, none other than Okarin stood there, dressed all in black staring back at them, looking as surprised as they were. "What the- it worked...?", he uttered, before turning on his heels and seemingly running off. "Mayushii found that weird", Mayuri stated, staring at the door with a puzzled expression. More than usual, when she hangs out with her, to her, smart friends. "Speak for yourself", Daru spoke and nodded agreeingly. Then Moeka silently stood up and decided to walk to the entrance. Afterwards she looked around the corner, from where she heard the quiet voices and saw the nearly impossible. "What's up, Shining Fingers", everyone heard in the distance. "Why do you call her that, again?", Kurisu sighed, obviously annoyed, and walked by Moeka, before sitting down on the couch next to Ferris. After that Okarin, surprisingly in a lab coat again, walked in and stopped next to Moeka. "Let me enlighten you", he yelled pointing at the confused girl with glasses who looked as shocked as the rest of the lab members and stared at Okarin dumbfounded. "Shining Fingers is the name of an individual whose superpower is typing with the speed of light. Therefore, Shining Fingers", Okarin explained, at the end staring up into nothingness, with a feeling of pride. But his dramatic speech only seemed to faze Kurisu, who sighed let her head drop. Then suddenly Okarin noticed that the states of confusion weren't because of his completely logical explanation of the name 'Shining Fingers', but were because of something else. "Why are you all looking at me like I just jumped out of a time machine", Okarin questioned while slowly spinning around to face Mayuri, who seemed the most disturbed. "Okarin just came here a few seconds ago, but with different clothes", Mayuri explained and broke eye contact with Okarin, "He seemed so sad". Mayuri gave a sad smile. "But that can't be. Okabe was with me the whole time", Kurisu argued, getting a distrustful glance from practically everyone. "If this is a prank, this isn't funny", Daru stated, not seeming very happy. In this moment, all the lab members stared at Okarin, expecting him to start laughing like a maniac and reveal how he did this prank. But quite the opposite happened. "Then what you have seen, must've been some sort of Fata Morgana", Okarin guessed, not sure himself, what happened. "Dude, this isn't cool", Daru sighed while crossing his arms. "This is no prank", Okarin explained with a serious face. "Maybe it's a doppelganger!", Mayuri suggested with a glow in her eyes, that maybe once she could help. "I'm impressed that you know such vocabulary, dear Mayuri, but no. That can't be", Okarin explained, earning a glare from Kurisu. "Maybe... We should look for him", Ruka suggested with a nervous little smile. "Good point, Rukako", Okarin agreed. "But I shall not go. For if he is from the future, we don't know what that may cause", he explained with a sly grin. "Fine", Kurisu uttered as she stood up, followed by every one else, besides Moeka. "Are you not coming with us, Moe-nya", Ferris asked the girl with glasses. She just shook her head and pulled Okarin down to sit next to her. Literally right next to her. The touch between them was very awkward to Okarin, but he couldn't convince himself to stand up and find anything to do, because there was nothing to do. 'That damned assistant is doing her job too well', Okarin thought to himself and sighed. "Wish us good luck", Kurisu stated as she oft the lab, not hearing Okarin's parting words: "You will need it".

"Damn it. I hope this works. If not I'm doomed", Okarin murmured, fumbling with some phonenic device in his hands, while sweat beads formed on his forehead. "Okay", he uttered and cautiously looked at his surroundings. The only thing audible was the rain pouring down and hitting the streets and a few cars rushing by the alley Okarin was hiding in. No soul was to be seen in the darkness of the night. Then Okarin pressed a button and held the phone to his ear. "Hello?", he asked looking very nervous. Is that you, Okabe? "Yes it is", he answered, relief spread across his face. So what are the circumstances there where you are? "It seems like in this world line-". "So that's where you are", a distant female voice cut Okarin off. Who's that?! Wait, is that- "Kurisu...", Okarin mumbled wide eyed. "I thought I told you to wait at the lab. Huh... Why are you so stubborn", Kurisu sighed and slowly walked closer to Okarin. You have to leave! Okarin on the other hand backed up with every step Kurisu took. "Tutturu~", Mayuri yelled from the other side of the alley. Suddenly Okarin tensed up, as he heard the familiar greeting with the to it belonging voice. "Wait, you are not the Okarin from here", Kurisu said, realizing what she had just been doing. "Well, at least we have you cornered now", she added, still calm and as if nothing. "What's wrong, Chris-chan?", Mayuri asked while still walking towards Okarin, unlike Kurisu who had just stopped. Then Okarin averted his gaze to approaching Mayuri and stared at her. Okabe-san! You have to run! You know what, tell me what Divergence number and I'll- Suddenly Okarin dropped the phone out of pure surprise, ultimately falling in a puddle of water, as Mayuri wrapped her arms around him. "What are you-?". "Mayuri! Get away from him! He may be dangerous!", Kurisu yelled running toward Mayuri and Okarin. Then Mayuri held out an arm to stop Kurisu and explained with a small smile on her face, "Okarin is Okarin. And this Okarin really needs a hug". At that moment Farris and Daru came running toward the voices, along with Ruka. "Is everything okay, nya?", Ferris asked, worry spread across her face. "We heard you yell, so we-", Daru explained and froze when he saw Mayuri hugging Okarin. "Is that-". "Yes", Kurisu answered Daru's question and nodded, "That is the Okabe you were talking about before".

"So how did it go, Christina. You look troubled. Couldn't find me?", Okarin asked in a mocking tone, lifting his eyebrows and getting up from the couch. "The problem is that we found him. You. Whatever", Kurisu confessed, her cheeks pink, and sighed afterwards. "Hashida is questioning him right now. Especially asking the question of what will happen if you were to meet. He should come any second with the answer", Kurisu explained, taking a seat on the couch. "Oh", Okarin uttered and sat down next to Kurisu. "Do you know what the reason may be to this?", Okarin asked now, looking Kurisu in the eye. "How should I know", Kurisu murmured, shrugging, and broke the eye contact. "I don't know. Maybe because you look like you have a theory to why this is going on", Okarin stated annoyed and averted his gaze to the entrance. "No I don't!", Kurisu answered, maybe a bit too loud and suspicious, getting a grin from Okarin. "Oh really?", he asked, lifting his eyebrows. But before Kurisu could answer, two people walked into the lab. "There's good news and bad news". One of the people was Daru, seeming pretty normal, but something in his tone of voice hints that something really messed up happened. Kurisu and Okarin stayed silent, because it felt uncalled for to comment now, when Daru hasn't said anything important yet. "Good news is that this Okarin spilled all the beans right away", Daru explains, dropping himself on his chair in front of the computer desk. But he wasn't finished yet. There was still bad news to come. "Bad news is that this Okarin won't get back so fast", Daru sighed and gestured his finger towards the door, for the second person to fully enter the lab. Forward stepped a young man with black, messy hair and brown eyes, wearing all black clothes. He was like a clone of the Okarin in a lab coat, just that they wore different clothings. The Okarin dressed in black smiled nervously and couldn't help but feel awkward. "So... How exactly did this happen. You won't tell me that that is the perfect clone of me, are you", the Okarin in a lab coat asked Daru with a confused expression. Kurisu reciprocated that expression, not understanding how that could happen. Did time brake so bad? Was it because this world line is unstable? "This Okarin came from another world line in the so called Alpha attractor field", Daru began explaining, but now got an even more confused glance from Okarin. "A what?", he questioned. Moments after, the Okarin dressed in black turned to his other self in confusion. "It's the parallel world theory from John Titor. Ah, right. Suzuha never went back in time, so you wouldn't know. But imagine that there are hundreds of similar worlds to this one, but in some way different. Those are called world lines. Specific points of Convergence keep the world lines contained. Those groups are called attractor fields ", Okarin explained to his other self. "Ohh", the Okarin in a lab coat uttered, finally understanding what Daru meant. "And why are you here?", Kurisu now asked with her typical frown. She didn't seem very pleased to have a second Okarin in the same world line. "An experiment", he explained and laughed nervously. "You see, he was forced to work with SERN. So he also had to participate in the experiments. Now they sent him to try and access another world line". "Which doesn't seem like the smartest idea, might I add", Okarin added and grinned. "So can't you just call SERN. I mean, you surely have some communication device, right?", Kurisu asked while standing up. "That's the thing. I don't have one", the Okarin dressed in black answered, before awkwardly shifting his weight. "Then what do we do?", Okarin asked, seeing no solution to the problem, besides constructing a machine to send the other Okarin back. And that's exactly what he said. "We must create a 'world line transference device' ", he explained. "Oh gosh", Kurisu uttered, before sitting down again. "Can we like talk about this tomorrow, 'cause I'm dead tired", Daru whined, getting a glare from Kurisu. "If you want, you can stay here. I have an extra mattress, since my useless assistant once... Never mind. I have an extra mattress", Okarin said, hoping nobody would've noticed his slip of words. "I would be grateful", the Okarin dressed in black thanked and smiled. "Well then I'm out", Daru stated and left the lab. Shortly after that, Kurisu went over to Okarin, acting a bit awkwardly and saying her goodbye, before finally leaving as well. "That tsundere", Okarin sighed while getting out the mattress from the back room. "I know right".

"Tutturu~", Mayuri greeted both Okarins sitting on the couch, sharing a Doctor Pepper bottle and talking about something she couldn't understand. "Oh~... One. Two... There're two Okarins", Mayuri stated, entering the lab and finally getting noticed by them. "Good day, Mayuri. Have you brought the bananas?", the Okarin in his white lab coat said, while the Okarin next to him silently smiled at Mayuri. "I do", Mayuri answered and smiled. Then Kurisu entered shortly after Mayuri, directly walking to the backroom and not even greeting any of the lab members. "Somebody isn't exactly a morning person", Okarin stated, annoyed at Kurisu's disrespect. "Shut up and help me find the microwave oven", Kurisu hissed as she thoroughly searched the backroom, in vain. "Don't you remember? We donated it to the Yanagibayashi shrine", Okarin explained and couldn't help a mocking smile. "Ugh...!", Kurisu uttered and grabbed her head in frustration. "Mayuri", Kurisu said that with the sweetest voice and warmest smile she had. "Would you mind going to the shrine with Okabe?", she asked the black haired girl, getting a sigh from Okarin. "Of course~", Mayuri answered and smiled at Okarin. "You will regret this", Okarin mumbled and stood of from the couch, before pulling his exhausted body to the exit of the lab. At that moment Kurisu dropped her glass of water in herself and groaned. "Payback is a bitch", Okarin mocked with a grin, before leaving the lab with Mayuri. "Can he be any more of a schmuck...", Kurisu sighed, as she desperately attempted to dry her now wet shirt. The Okarin dressed in black just chuckled at that, not wanting to comment on the behavior of his other self. First now Okarin had noticed that Kurisu exchanged her khaki jacket with a lab coat. "Oh, I didn't know you wore a lab coat, Makise", Okarin laughed nervously, hating himself for being so awkward and suppressed a smile. "Of course I do. I am a scientist", Kurisu answered his comment. "And since when do you call me by my family name?", she questioned, her voice reflecting her confusion. "Oh- uh... I just don't feel really comfortable calling you by your name. That's all", Okarin explained and laughed nervously afterwards. Kurisu didn't really understand why, but she decided to believe Okarin. He was Okarin after all.

On the way to the Yanagibayashi shrine, Mayuri and Okarin were having a pleasant conversation about the upcoming ComiMa, before Okarin's phone suddenly started buzzing. "Hello hello. Hououin Kyoma here", Okarin joked while talking on the phone, "What's up, Christina". Without the -tina! Or do you want me to call you names as well, 'Okarin'! Mayuri laughed. "Yeah, okay, whatever", Okarin sighed and suppressed the urge to continue arguing with Kurisu. Are you at the Shrine yet? Because that microwave would be pretty useful right now. "No. Patience is of the essence. We're almost there though", Okarin explained while turning to Mayuri who still smiled at Okarin. Good, then hurry up! We don't have all day! Then the line was cut. "Talk about impatient mad scientists", Okarin commented while putting his phone away again. "What did Chris-chan want?", Mayuri asked innocently, looking ahead again. "She was hurrying us up to get to the Shrine and back faster. Really, does she think we can teleport...", Okarin mumbled and uttered a sigh. "Ruka-chan! Tutturu~", Mayuri yelled while waving at Ruka. "Oh, Mayuri-chan and Oka- uh... Kyoma-san", Rukako said surprised and looked away while blushing. "How's it going, Rukako. Have you been working diligently with the Samidare?", Okarin asked. "Uh... I guess, yes", he answered, not being able to even look Okarin in the eye. "Do you still have the microwave oven that we donated half a year ago?", Mayuri asked while smiling at Rukako. "Actually, yes", he answered while smiling shyly. "Good. Would you mind us lending it?", Okarin asked, taking a step closer to Ruka. "Um... I have to ask my father first, but I think that should be fine", Rukako answered, before turning around and running into their Shrine office. "Ruka-chan is so nice", Mayuri stated, smiling to herself. "Indeed, he is", Okarin sighed and wiped the sweat off of his forehead. 'But he's a guy', he reminded himself and mentally sighed, again. "It sure is hot", Okarin then stated while walking into the cool shade of a nearby tree. "Oh Okarin", Mayuri giggled and followed him under the tree. Suddenly Ruka appeared out of the blue in front of the pair. Without realizing it, they had been standing under the tree for a span of ten minutes, not being really aware. "My father allowed you to borrow the microwave oven", Ruka said while smiling slightly. "Yes, of course. Your father is a generous man. Remember that, Rukako, in the case of need, for everyone has dire situations", Okarin thanked Ruka in his own way, by giving him his 'wise' advice. "Y-yes sir", Rukako stuttered and stared Okarin in the eye, while blushing and smiling.

"A little bit more, Okarin!", Mayuri cheered, walking ahead of Okarin, yet still facing the lab coated man, who was drenched in sweat, and carried the microwave oven using both of his hands, though he was still out of breath. "We're almost there!". "I... Know... . But still...", Okarin muttered with a hoarse and dry voice. "Finally you decided to come around", Kurisu yelled while leaning out of the window with an upset face. "Why did I have to... schlep this from the... Yanagibayashi Shrine", Okarin complained as he stepped closer to the lab entrance. "Huh...", Kurisu sighed and disappeared from the window. "Let me help you", she said while running down the stairs and grabbing halt of the other side of the microwave. "That's a bit late, Christina", Okarin stuttered while grinning and stared Kurisu in the eye. Then Kurisu gave him a glare whilst narrowing her eyes, causing Okarin to look away and mumble, "Th-thank you...". After carrying the microwave oven up to the lab, Kurisu went over to the white board and started to explain the progress she and the Okarin frkm the other world line made in the last hour. "Thanks to the research from Okabe while working one and a half years with SERN, this should've been easy. But it seems like we'll have to rebuild the whole microwave oven and make a time machine", she explained and sighed. "And why a time machine? Can't we somehow build a device to send a message to SERN about somehow getting you back?", Okarin questioned, feeling a little uneasy about creating a time machine. "Because we can make the world line transference device out of a time machine, from what I remember", the Okarin dressed in black answered, not averting his gaze off the floor. Kurisu nodded. "So that should be easy. Just make the Kerr black hole a bit bigger, to fit a whole human inside, and then make it send that information to the other world line, right?", Okarin guessed and proudly smiled at his brilliance. "Easier said than done", Kurisu sighed, "We'll have to work and test a lot". "Then commence operation-". "There will be no operation name", Kurisu interrupted Okarin, leaving him speechless. 'That woman has spunk, to interrupt Hououin Kyoma!', Okarin thought to himself and sighed. "Fine!".