#mp100 fanfiction

[leakyweep]

Same Time Next Week? Reigen Arataka x Fem!Reader

A/N: yeah this was self indulgent sorry but i hope you guys enjoy this as much as i did! i’ll be starting a tag list soon, so let me know if you wanna be part of that! also, MINORS AND AGELESS BLOGS WILL BE B-B-BLOCKED :)

WARNINGS: unprotected sex, office sex, cunnilingus, fingering, sucking dick and cock like no big deal, quickie? sorta? serizawa totally knows lmao

Word count: 1.2K

As you walked in the door to the quaint office of Spirits and Such, you couldn’t help but give the blonde man behind the main desk a knowing look. He matched your gaze as he stood up, smiling warmly.

“Ah, welcome in!” his voice was as it always was, loud and arrogant. Serizawa didn’t so much as look up from his schoolwork as you sauntered up to the man’s desk, winking slightly. He confirmed your “name and appointment time” before leading you back to his consultation room.     

As soon as you two walked in and closed the door, your lips were crashing against each other quickly and sloppily, two sets of hands desperately reaching for shirts and belts. His lips were hurried, but soft as he kissed you, his hands pulling your button-up off and your own fingers unbuckling his belt.

Reigen was your... friend with benefits, you supposed. It had started when you two met a bar, and hasn’t stopped since. He had to keep you under the guise of customer, so he did all the theatrics as to not tip off his dark-haired coworker. Although you two did your best to be quiet, Serizawa was more observant than you both gave him credit for. 

As the kiss escalated and clothes were forgotten, you found yourself sitting on the edge of his desk, eyes rolled to the back of your head as the blonde slowly kissed down your abdomen to the place you wanted- needed him most. 

“Arataka,” you breathed, your voice barely above a whisper. The tone was dripping in lust, as soft as velvet. “fuck.”

He smiled against your hot skin as he finally made it between your legs, kneeling onto the floor to be level with your dripping cunt. It was throbbing, and you needed some kind of friction as he ran his hands up and down your thighs. “Ah.. you missed your appointment last week. Where were you?” His voice was teasing as he looked up to your gaze. He almost sounded jealous. He ran a finger softly down your slick, a barely there touch. A soft gasp escaped your lips.

“Maybe I found another blonde business man to fuck me while he’s at work,” you joked, a smirk playing across your lips. His brows furrowed, a devilish smirk of his own on his face. 

“But can he do this like I can?” He asked confidently, his tongue finally making contact with your clit. He rolled it around his tongue, teasing you before attaching his lips around your slit. his velvety muscle traveling up and down your wet. You moaned softly, his name escaping your lips as his tongue finally inserted into your entrance. 

“No, fuck- no one can,” you praised, fingers tangling into his blonde hair. You felt his cocky smile against your slit, rolling your eyes playfully as he continued his assault on your pussy. His pace quickened, his tongue being replaced with his fingers as they prodded at your entrance. He inserted two fingers, soft squelches from your sex filling the room. It turned both of you on more than you thought. 

“That’s exactly what I wanted to hear, babygirl.” His voice was strained as his fingers quickened, bumping your g-spot with each thrust. It had you gasping and clutching the man’s blonde hair as you could feel the spring in your core coil tightly. The sound of his slurps and grunts through your cunt pushed you further, being totally overthrown by your pleasure and lust.

“Rei, ‘m gonna-” your tone was soft as you were cut off by your own moan, clamping your hand over your mouth to stifle the sound of Reigen’s name being sung from your lips. Your toes curled as you bit your lip and groaned gently. He bit his lip, watching pleasure wash over your face as he rode you through your climax. 

You quickly clamored from his desk, kneeling in front of it as he stood. His dick stood at attention, precum beaded at the top. You licked your lips, taking the base of his cock in your hand and connecting your mouth to the swollen tip, sucking the precum from his slit. He moaned, one of his hands reaching down to hold the back of your head as you found a rhythm to suck him off to. 

The sounds of his cock choking you and his groaning and grunting filled the room. He quickly pulled out from your mouth, grabbing your hand to desperately pull you up from the ground. He hastily pushed your hips against his desk, your torso laying on the desk with your ass in the air. He gave it a quick smack before prodding your entrance with his cock. You craned your neck to look back at him with half-lidded eyes.

“You missed this pussy, didn’t you?” you teased, biting your lip. “Who else’s pussy is this good for, Rei?” you pushed your hips back, brushing his tip against your entrance before it slid down your wet. Your hips jerked back as you felt him run the tip from your clit to your entrance, grunting as he pushed in all the way to the hilt. 

His hand found your hair as he gave you a second to bottom out, his length filling your pussy and stretching it deliciously. “You have such a perfect pussy, I can’t deny,” he chuckled, a lust-filled sparkle in his eyes. You moaned softly, feeling his hips press you against the desk. He pulled out slowly, snapping his hips back to fill you up quickly, and hard. You moaned, gripping the edges of his desk. 

His pace quickened as he rocked his hips back slowly and then snapping them forward in a sudden motion, his length pulling and pushing against your sensitive walls. Soft, wet smacks surrounded the two as things started to heat up, sweat beading on Reigen’s brow as his pace was fast and merciless. You could tell he had missed you last week by the way he desperately shoved his cock as far into you as possible. His hands pulled your hair, bringing you up to arch your back into an almost U shape. 

“Fuck,” He breathed through grunts of your name, his hips stuttering as he got closer to his climax. You encouraged him by throwing your hips back to meet his in the rhythm he had going. A strangled moan left his mouth as he buried his dick as deep as it would go into your pussy, coating your walls in his warm fluid. 

You came simultaneously, soft praises of his name leaving your lips for the second time that day. Your walls fluttered around his already spent cock, milking him for everything he had. He kept his cock there for a moment before pulling out slowly, his cum dripping from your pussy down your legs. 

After getting cleaned up and making sure each of you looked put together, you walked out of his office, feigning an innocent smile. 

“So, (y/n), same time next week?” He asked, his voice now filled with that arrogance and professionalism before. They put on a good guise, smiling and waving goodbye to each other as you left the office. 

However, Reigen couldn’t miss that gleam in Seri’s eyes as he walked past. 

#reigen arataka #reigen arataka x reader #reigen x reader #mob psycho 100 #mp100 #mp100 fanfiction #reigen arataka smut #smut #anime fanfiction #fanfiction #mob psycho 100 fanfiction

[arabaka]

ᰔ ̗̀➛ CHAPTER O3. BLOSSOMING.

₊˚ʚ ☁️ ₊˚ ♡ ﾟ. content warnings ⤸ sfw. reigen arataka x afab!reader. no cw but while this chapter is sfw, the story is generally not. 1.1k word count.

₊˚ʚ ☁️ ₊˚ ♡ ﾟ. author's note ⤸ chapter 3! sorry for taking so long, muse was dead but thanks to my beloveds, meg and @bulle-blackhole, i was able to break the curse and finish this! b also gave me the AMAZING idea that you'll see when you see reigen again and that honestly got me through the rest of the chapter lol.

CHAPTER ONE. | CHAPTER TWO. | TABLE OF CONTENTS.

“We should probably set some ground rules, right?” You murmur to his chest after a short while of being in his embrace. 

Admittedly, Reigen hadn’t thought about that. “Yeah… Probably.” Reigen croaks, his cheeks heating up to an obvious red as he hears himself. “Sorry, I’ve just…” 

The man looks away, ashamed, brown eyes looking anywhere but yours as his sheepishness shows in red hues blooming over his cheeks. Though he knows, there is no running from this, not from the very truth of the fact that…

”I’ve never been in a relationship.” His voice drops decibel by decibel with every word but the shame that drips off every word has no one to blame but himself. 

The “going home” club really was a foolish decision. 

You watch Reigen's throat tense with a barbed swallow, your heart beating with sympathy (but not pity) at the sight of it. He’s pensively pushing his fingers and his gaze is to the floor. The only noise bouncing off the walls is the nervous tap, tap, tap of his feet. If his words didn’t say it, his body language certainly does: the man is anxious. Reigen thought for so long that being self-made was enough for him, but as he’s confronted with his first relationship ever, he can’t help but think he’s falling short of what you need. What you deserve.

That’s when your hand comes over his, fingers curling in for a reassuring squeeze. The corners of your lips subtly curl, a tender smile appearing as you tell him, “That’s okay. Every relationship is different anyways… And I think we can both agree our situation is very different.”

We. Our.

Those two little words seem to snap him out of his stupor; after all, Reigen wouldn’t want to miss that smile of yours. 

His hand shifts, his fingers moving to lace with yours. Immediately, he gulps, “S-Sorry, my hands are kinda sweaty.” 

“That's okay. Some sweat never hurt anybody.” You assure him with a light laugh. “How about this…” You whisper as your other hand folds over his knuckles. “Let's revisit this tonight, in the meantime we can think about all of this and… Shower because I know I need one.”

The proposition is a relieving one, Reigen letting out a breath he didn't even know he was holding when you were done speaking. “I think that's a great idea.” He murmurs with a chuckle, eyes cast on your linked hands as he continues, “I really… Don't want to screw this up.” The man admits, unable to shake off the fear that everything will fall apart and it will be all his fault. He can fake it ‘til he makes it with everything else, everyone else in his life, but he would never do that with you.

He doesn't have to.

And when he hears you tell him that he won’t screw it up, that you won’t let him, with the sweetest smile, he believes you.

—

A few hours and many, many, Mobgle searches later, Reigen stands outside of your apartment door. He’s traded his suit for a more casual look, even tried parting his hair a different way… Until he saw his reflection in the nearby window and quickly rectified that mistake.

Just in time too because there you are, opening the door with a bigger smile on your face than the one you had this morning. “Reigen!” You chirp, extra excited to show him the bouquet of flowers you had bought for him earlier that day… Only to see the exact bouquet in his hands as well.

Pink roses line both arrangements but the real stars are the gerberas, their stark white petals standing out among the rosy leaves and bundles of baby’s breath. Both sets of flowers are the same, down to the pink cellophane wrap and white ribbon around the stems. 

Both of you blink in surprise at first, stunned to silence until an escaped snort from Reigen gets you both to start laughing. “What are the odds?” You ask after a giggle, wiping your eye of the single tear that came from the belly laugh. “Let me guess…”

You don’t have to, Reigen jumps on it seamlessly, “‘You can’t go wrong with roses and gerberas!’” 

“And let me guess…” You start again with a toothy grin, “He didn’t charge you for the baby’s breath either?”

“... What?”

–

You sit on the couch– yes, the same couch you two were shamelessly making out on like you were teenagers at the height of puberty less than 24-hours prior. Though this time, there isn’t any tension to cut through. No gulped swallows and nervous stirrings of the gut.

“We should say our first rule out loud at the same time.” You’re overeager, every cell in your body just itching to hammer out these details so you can kiss that stupid face of his again… 

Okay, you really just want to seal the deal so you can officially call Reigen Arataka your boyfriend.

Reigen exclaims with a sweat already running from his brow, “What if yours is way more serious than mine?!” 

“Aw, c’mooooon.” He’s still hesitating so you bring out the big guns… A pout and a stare that would put a kitten to shame.

Reigen’s face could not get redder. He can practically feel his heart ramming against his ribs just looking at you! “... Fine.” He clears his throat, trying to recover from the strike to the heart that was your expression. “You’re not gonna do that every time you need me to agree with you, right?” He asks after a beat, letting out a chuckle that makes the red glow on his cheeks even brighter somehow.

“I make no such promise.” You answer with a nod and a smug smile, your chin wrinkling from the silly expression. “Now, c’mon! One… Two… Three!”

“No PDA at work!” 

“We shouldn’t do anything at work!”

You both let out a sigh of relief. 

“Oh, good.” Reigen leans back on the couch, eyes closed briefly in contentment. “I’m glad we see eye-to-eye on this. But it’s not because I don’t want the others to know!” He’s now sat upright, needing you to see the honesty in his eyes because he would never want you to get the impression he wants to hide you for any reason.

Your hand on his knee soothes his worries, a touch he can already see himself craving. “Hey, hey, hey. Don’t get ahead of yourself. I knew what you meant but Reigen…” You smile at him tenderly, squeezing his leg as you assure him, “You don’t need to watch yourself around me, afraid you’ll make a mistake just because we’re going to be dating now.” Oh, how your cheekbones already tingle from how much the word “date” makes you giddy. 

“Right, right.” Reigen returns your affectionate smile, his hand coming to hold yours. The gesture is still foreign to his bones but god, it feels perfect. “Well, I’m sure we can handle ourselves at work.”

“Totally.”

“Totally.”

#reigen #reigen arataka #reigen x you #reigen x reader #reigen arataka x you #reigen arataka x reader #reigen x y/n #reigen arataka x y/n #mp100 #mob psycho 100 #mob psycho fanfic #mob psycho 100 fanfic #mob psycho 100 fanfiction #mp100 fanfic #mp100 fanfiction #mp reigen #mob psycho reigen #reigen fanfic #reigen arataka fanfic #reigen fic #reigen arataka fic #mp100 fic #mob psycho 100 fic #.˚₊ ੈ ʚ 🍰 ɞ ₊˚. ꒰ a little treat for reigen. ꒱ #.˚₊ ੈ ʚ 📝 ɞ ₊˚. ꒰ jackie writes! ꒱

[bloomingru]

Hey, guys! Guess who always forgets to update on tumblr...that's right, its me. But anyway. Participated in EkuSeriReiWeek2023 a while back. I uh...didn't finish...but I did 5 out of 7 days! Which is better than my usual, hahaha...:| So here's here's days 1, 3 and 5. Day One: Dress Up! Day Three: Domestic! Day Five: Closing Time! I wrote fanfics for days two and four. Day Two: Hobbies! https://archiveofourown.org/works/49772713 Summary:

The weather is nice and Reigen wants to go out. Serizawa suggests fishing. Dimple is agreeable to pretty much anything, even if he complains about it a little.

Day Four: Confessions! https://archiveofourown.org/works/49782517 Summary:

Reigen, in a burst of inspiration and courage, decides to confess his feelings for Serizawa and Dimple. He even comes up with a contingency plan to keep himself from backing out. But with no way to back out and the day getting closer to its end, his bravery takes a tailspin as well as his capacity to deal with his emotions and thoughts.

#EkuSeriReiWeek2023 #EkuSeriRei #EkuRei #EkuSeri #SeriRei #sometimes Yoshioka is there too as a fully aware and consenting individual bc I'm a simp for EkuYoshiSeriRei ok? #EkuYoshiSeriRei #EkuYoshi #mp100 #mob psycho 100 #mp100 fanart #mp100 fanfic #mp100 fanfiction #Dimple #Ekubo #Reigen Arataka #Serizawa Katsuya #yoshioka mamoru

[thatruperson]

I'm Glad It Started Raining

Happy Holidays to @hananono !! I was your Secret Spirit gifter this year! I hope you've had a great year and an even better one next year! You asked for for tft SeriRei, happy/silly Serizawa and fun outfits! I tried to combine them. I hope you all enjoy this little ficlet. :) Thanks for hosting @mp100secretspirit ! ~~~~~~~~

The rain came on unexpectedly and they ducked into a shop, cursing their luck, not really paying attention to what it was. He looked around curiously. Odd clothes and accessories littered the place, along with rolls and rolls of cloth stacked atop each other and photos of families and couples. Before he could ask Reigen what he thought the place might be, an employee appeared and gave them her best customer service smile. “Welcome to Photopalooza! We’re having a Rainy Day sale, 20% off all our photo packages! Would you be interested in looking them over?” She hands them each a pamphlet. 

“Er…” He says as he blinks down at the shiny laminated sheet in his hand. He’s five seconds away from apologizing and saying they’re there by mistake when he sees Reigen bouncing on his toes. “Ooooh, Katsuya, check this one out!” And then there’s a pamphlet that is way too close to his face. He pushes Reigen’s hand back a bit so he can see the one he’s pointing at. “Fantasy Playplace Package: Be the Hero or Villain of Your Own Story!” He reads it off dutifully. He blinks. “What?” When he meets Reigen’s eyes he has that gleam that tells him he’s excited by whatever this place is and the man waves a hand around dramatically. “Forget the movie! We can see that anytime. This is fate, Katsuya! We don’t have any photos of just the two of us! Let's fix that here and now!” That is true…Most of their photos together included the kids or clients or his Mother. He takes another look around the shop with new eyes. He smiles, warming up to the idea. “Yeah, sure, why not!”

Ten minutes later a very pleased employee, happy for her sales commission, shows them to a room. There are a few heavy looking trunks and she explains that they’re filled with various costumes and props. She then cheerfully explains how to change the backdrop and the various buttons to press to change the camera settings and timer. “Just call for me if you need assistance, sirs. And remember, if you break anything it gets added to your bill.” With that said, she’s gone. 

“I’ve never done anything like this before.” He says, thrumming with excitement as he pulls out a costume from one of the trunks and looks it over. “Neither have I!” Reigen says, holding up a pink, flouncy princess dress to himself with a grin. “I definitely want to see you in one of these.” He snorts a laugh. “I haven’t worn a dress since I was seven, ‘Taka, that’s all yours. Besides, I don’t think they’ll carry one of those in my size.” “These things don’t count as dresses.” Reigen scoffs. “It’s a costume! Theater!” He strikes a dramatic pose. “Is the size thing the only thing holding you back?” He chuckles at Reigen’s antics. “Well, when you put it like that, I suppose so…” “Great!” The blond replies and is sticking his head out the door and calling for help before he can change his mind.  Soon enough, the employee has brought them an equally pink and somehow even frillier dress than the one Reigen had held up earlier. “Wow, you really do have one in my size…” He says in surprise. She laughs and hands it over. “Of course! The only demographic that rivals little kids in wanting to wear one of these for photos are grown men having a good time!” His smile broadens as Reigen says, “See? What’d I tell you!” He places one hand on his chest and throws the other up in the air. “Theater knows no gender boundaries!” They quickly pull the dresses on and help each other zip up. They take one good look at each other in the cheap, plasticky dresses before collapsing on each other in laughter. “Oh my gosh, we look like off brand Barbies.” Reigen wheezes against him and they spiral into laughter again. They complete their looks with conical hats that strap beneath their chins and take a few pictures like that, acting regal in one, undignified in another, before he tosses his off and puts on a dragon suit and chases Reigen around the room, the other man shrieking in as high a pitch he can manage. Things quickly devolve from there.  “Oh my god, ‘Taka.” He pulls out a lightsaber from one of the trunks. “We gotta do this one.” They bicker for a while over who is going to play the sith and who will play the jedi. Katsuya refuses to play rock, paper, scissors as he still hasn’t figured out how Reigen always wins that game. But Katsuya wins in the end with his superior puppy eyed look and gets to play the jedi like he wanted. They don their robes and set the camera to take multiple pictures as they recreate their favorite scenes, yelling and whacking each other with the cheap lightsabers. It turns out Reigen is scarily good at laughing like Emperor Palpatine and he feels justified in making him play the sith. After that they take a stab at being mimes, completely failing at being silent. “What are you doing?!”

He laughs at Reigen’s exasperated face. “I’ve lasso’d you and I’m pulling you in, obviously!” Reigen rolls his eyes but grins and pretends to be pulled into him. Katsuya rewards him with a kiss that would have continued longer had the timer signifying the end of their booking not gone off. They stand at the front of the store in their normal clothes once again, the sun shining in through the window as if it had never rained at all. They laugh as they browse through the photos they took and choose their favorites, adding silly special effects before printing them out to keep. They choose one of the classic photobooth strip layouts, and print out three copies. One for each of them and one for the office. He thinks the professionalism of them dressed as princesses and things is debatable but Reigen disagrees and says it adds a fun element to their office and well…he can’t really deny that. He can still feel the residual joy bubbling up inside him as they leave the shop hand in hand. He brings their joined hands to his lips, pressing a kiss to Reigen’s knuckles. “I’m glad it started raining.”

#secret spirit 2023 #SeriRei #tft SeriRei #MP100 #MP100 Fanfiction #MP100 Fanart #For Hananono #You can also find this on AO3 under the same Title

[lavrach]

FINALLY I posted the 9th chapter to my fanfic!!! Give it a read :D (please)

#mob psycho 100 #mp100 #reigen arataka #serizawa katsuya #fanfiction #gay #serirei #serirei fanfic #mp100 serizawa #mp100 reigen #mp100 fanfiction #trans reigen arataka #friends to lovers #getting to know each other #mutual pining #kind of #fluff #with some angst #this about covers it #I think #ao3 #ao3 link #ao3 fanfic #archive of our own

[spacepajamas956]

MONDAY CHAPTER!!

I can't believe we're already up to chapter 20!!

#mob psycho 100 #fanfiction #terumob #teruki hanazawa #reigen arataka #shigeo kageyama #broken and healed mp100 #my fanfiction #ao3 link #fanfiction link #mp100 fanfiction

[ethanhuntfemmefatale]

Having a normal one writing mp100 fic

#*slaps serizawa* this bad boy can fit so much guilt and self hatred in him #mp100 fic #mp100 fanfiction #mob psycho 100 #serizawa mp100 #serizawa katsuya #tw child abuse #child abuse #suzuki shou #shou mp100 #mp100

[deadgravity]

I can't believe the shock waves of Sans beating Reigen in the Tumblr Sexyman poll killed the queen of England.

#sans undertale #reigen arataka #queen elizabeth ii #queen of england #comic #mob psycho 100 #mp100 #undertale #world news #this is so incredibly niche I expect even myself to find this incomprehensible in 2 years #release the crabs #toby fox mob psycho fanfiction #tumblr sexyman poll #buckingham palace double rainbow

[pinkpabli]

Talk to me about your lost fanfiction. I'm listening. I've been there. I'm here for you.

#fanfiction #ao3 fanfic #ao3 #fandoms #one piece #disco elysium #mp100 #star wars #sherlock bbc

[mobbu001]

#mp100 #mob psycho 100 #モブサイコ100 #based on fanfiction

[nina-rosa]

(read from left to right →)

🌸 The negligible self 🌸 chapter 1, p.1 to 7

A comic based on a serirei (from mp100) fanfiction written by @homosexual-fanfiction (@/ch_am on Ao3)! Please go read the fanfic there too because it’s really good!!! T v T

I don’t know if I’ll adapt the whole story (even if I really want to!!!) so for now I’ll try to do as much as I can, starting with that first chapter (which is already entirely storyboarded)!

Thanks to Camp for allowing me to draw their story and for helping me while designing some of the settings and Aimi <333 and thank you again for writing such an awesome and inspiring story!!

You can find Camp here too: @ch-am

I hope you’ll enjoy this first bouquet of pages!!💐

Here’s the link to the fic!!

#mob psycho 100 #mp100 #serirei #fanfiction #fanfic #reigen #reigen arataka #serizawa #serizawa katsuya #the negligible self #comic #when I’m reading a fic that I really like it gives me the same kind of feels u have when you’re in love u know?? #(or it makes me want to be in love at least???) #like this excitement you feel in your chest and the urge to put your face in your hands to giggle hdhdhdhjd #anyway I’ll stop being embarrassing now fanfictions are amazing I wish I was able to write stuff like that #(I guess I can draw comics instead so that’s okay?)

[ive-completely-given-up]

Reigen canonically knows what fanfiction is so, I had to

#meme #reigen arataka #mp100 reigen #mp100 #Anime #mob psycho 100 #Fanfiction #Yeah #Reigen AO3 user fr #AO3 #archive of our own

[physical-manifestation-of-spite]

No because I have such a visceral reaction to fanfictions that have the characters do something that they would never do. “He would not fucking say that,” actually causes a genuine physical ailment in my body. The world is caving in on me. I feel sick

#spiteful musings #i'm reading tma fanfiction and tim keeps... just forgiving jon bc jon looks a little pathetic #'he would not fucking do that' is a constant saying in my mind #tma #mp100 #the magnus archives #mob psycho 100 #yeah i don't know what else to tag this as #ao3 #archive of our own #fanfic #fanfiction #fanfiction.net

[bloomingru]

Me, @just-bee-lieve and @ch-am and others were playing Frantic Fanfic and this is one of the very silly stories that was written.  Ft. Drunk Reigen, Mob Worm and Sober Serizawa. Read it and have a giggle.

#mp100 fanfic #mp100 fanfiction #comedy #reigen #serizawa #mob #mp100

[baker-chan-senpai]

i LOVE alternate meeting serirei au's pass it on

#not just cos i have a thing for pre-mob serizawa but that's also true #serirei #serizawa katsuya #reigen arataka #mp100 #mob psycho 100 #mob psycho #really i need more fanfiction of them #and angst #god i love angst #with a happy ending tho please #sketch dump #art #digital art

[lavrach]

Hello everypony,

I reposted the first two chapters on Wattpad, while hoping for AO3's quick recovery.

(Cover made by me)

#mob psycho 100 #reigen arataka #serizawa katsuya #serirei #mp100 #gay #fanfiction #ao3 #wattpad #hurt/comfort #gay people #trans reigen arataka #mp100 fanfiction #ao3 fanfic