Stories focused on the family and the friendly relationships of the cast. Plot-focused stories or light day-in-the-life stories. Pretty much anything that isn't focused on romance.A Certain Destined Introduction by Cun
Synopsis: A Railgun centric fic. Kuroko starts at Tokiwadai and meets a certain someone. However their relationship is off to a rocky start.
Pairings: None... Though we can be sure Kuroko will be complaining about that at the conclusion of the story.
Comments: Cun writes very much Original Flavour and his characterization is spot on. If you can't get enough the originals mixture of Comedy, Mystery and heartwarming friendship, this is very much recommended. Note that this isn't just a Slice of Life - different seemingly disconnected incidents are slowly coming together into a bigger plot.
Seconded by moberemk; this is easily the best Index story on FF.net right now, with frighteningly good characterization and writing. Even Kuroko becomes not only bearable but interesting, and that's saying something.
Synopsis: Feeling grateful towards Touma, Index and Mikoto put aside their differences to organize a Christmas party for him. Takes some slight Broad Strokes from canon.
Pairings: ToumaxMikoto or ToumaxIndex? Take your pick, or maybe both.
Comments: An interesting story that otherwise when necessary stays within canon. Almost every named character is at least referenced and includes a small cross-over with Kaichou Wa Maid-sama. The author even seems pretty Trope Savvy, throwing in a joke or two about Actor Allusion. All the while Tsuchimikado is distracting Touma with a search for the very enemy of Christmas himherself...
Synopsis: It's Valentines Day in Academy City. Mikoto feels insecure with her femininity after recieving so many chocolates from girls. Touma, of course, receives more chocolates from girls than anyone else in his school. But an Unknown Rival in another class is sick of Touma's popularity and challenges him to a duel for all his chocolates. But not just any duel, a Badminton duel. At the same time, the boys of GROUP follow a suspicious acting Awaki and end up more involved in her love life than they ever wanted.
Pairings: Some light ToumaxMikoto
Comments: A fun adventure that's hilarious as it is thrilling. Top scenes include Mikoto's faulty logic for getting Touma to fall for her, and the GROUP boy's heartwarming attempts to protect Awaki.
Synopsis: An AU version where Index never fell onto Touma's balcony, Accelerator never killed a single clone and never even got the chance, and Project RADIO NOISE, the plan to create an army of Black Ops clone soldiers based on Mikoto's DNA was never canceled. In fact, it took the form of an shadow organization dedicated to cleaning the streets of Academy City of its bad elements. Kamijo Touma is dragged into this darkside of Academy City after he witnesses the Sisters cleaning up an operation. Hunted by the Sisters, Touma is determined to get to the bottom of what he saw. He soon encounters and becomes entangled with the newly formed GROUP, who have the mission of destroying RADIO NOISE and killing its leader, Last Order.
Comments: This is what happens if you take the Index-verse and turn the grim darkness up to 11. Violent deaths are common and the fic fully explores the grittiness of Academy City's darkside. Touma is different as well, having all his memories, being slightly more cowardly, and no idea what the power he possesses is capable of.
Synopsis: After a cataclysmic event that unleashed the most horrible, brutal battle in the history of Academy City, we follow a day in the limelight of the only person on the entire city and maybe even the civilized world who's oblivious to the evil that happened the night before.
Pairings: A little ToumaxHimegami, but just barely.
Comments: A hilarious one-shot about a character that needs more love on the fandom; with a few romantic moments, everyone in character and even a couple of guest stars at the end.
Synopsis: While Touma is giving Itsuwa a tour of Academy City, Mikoto Misaka Awakens. Touma and Itsuwa try to help her adjust to her new power while they deal with a new threat.
Pairings: ToumaxMikoto, ToumaxItsuwa
Comments: A little wordy at times, and the author has a lot of grammar mistakes, but awesome and cute. And Mikoto's mom is badass.
Unfortunately, the author is not entirely fluent in English, and it shows. More importantly, it's a perfect example of Purple Prose.
Synopsis: Proximity Trace, the ability to mimic compatible Personal Realities. Just what is the truth behind Ryusuke's past? What secrets does Academy City have to hide? Touma X Harem, OC X MISAKA 19090.
Pairings: Touma/Harem OC/Misaka 19090 (although neither show up in the story, and are being saved for the sequel
Comments: The story follows the character Ryusuke as he acts as a side character in the canon story arcs of Railgun and Index, all the while trying to discover what happened in his Dark and Troubled Past. It is a legitimately good OC based story. It manages to have an OC that is not a Mary Sue, mainly by having him get his ass kicked a lot. The power of the main character is interesting, making him like Peter Petrelli except that the powers he gathers are weaker when he uses them than when their original owner does. The sequel A Certain Angelic Finality can be found Here.
Synopsis: Accelerator and the Railgun. Two level 5's that have been subjected to the same rumour: they have been defeated by a Level 0. But who is this mysterious esper? This is the numerous investigations made by characters in the To Aru universe into this Level 0. People who don't know him will learn the truth and those who do know him will catch a glimpse into his life. Will have action.
Synopsis: The Delta Force (comprised of the idiot trio Touma, Tsuchimikado, Aogami Pierce) is challenged to battle by a group of Tokiwadai girls. How will they respond?
Pairings: None, though does hint towards ToumaxMikoto.
Comments: A decent five-shot featuring the delta force with characters acting believably like their canon selves. Plus it has Accelerator in a cheerleader outfit!
How is it those two sentences have anything to do with one another?
He's being blackmailed by Last Order. It's HILARIOUS.
Synopsis: A 'For Want of a Nail' type story, this basically retells the story of Railgun and Index with Touma and Misaka having been childhood friends.
Pairings: ToumaxMikoto.
Comments: Hasn't gotten very far in- the story just got part the Graviton Bomber plot, and apart from a bit of Foreshadowing, Index hasn't shown up yet. That said, I find it a fun read so far. NOTE: It does need to be mentioned that this fic takes a significantly... darker... approach to Touma's backstory, which may turn some people off.
It's gotten to the Index arc, which is running simultaneously to the Level Upper plot. Touma's backstory is a nice touch; it's darker than the backstory in the original, but arguably gives Touma (and even Mikoto by extension) a little more depth. Mikoto is a little bit more interesting as well, now that she's not relegated to zapping Touma whenever she sees him. All in all, a great read so far. Nothing too major has changed in the plot, except that SCHOOL is now involved in Level Upper, Mikoto and Kanzaki fight while Touma fights Stiyl, and there's boatloads of Touma/Saten Ship Tease.
Unfortunately, this fic appears to be dead since it has not been updated since September, 2011.
Synopsis: A tale of a battle between two great forces and those who get swept up in it. As the two level 5s face each other a conspiracy is revealed and a romance blooms, but what does fate hold in store for The Ace, The Queen, and The Two of Hearts?
Pairing(s): MisakaXKuroko
Comments: A long fic with a good mix of action and romance. It has a pretty good plot and is updated regularly. The characterization is pretty good but there is a focus on character development as well. Now finished with a sequel "The Bishop, The King, and The Knight"
Synopsis: The 'Queen of Tokiwadai', Shokuhou Misaki, meets Kamijou Touma. Mikoto gets jealous and things get worse/better from there, depending on one's viewpoint. Expect trouble, or should I say Misfortune?
Pairing(s): There is some ToumaxMisaka, and there might later on be some ToumaxMisaki
Synopsis: The bro adventures of bros doing bro things.
Pairings: None beyond the usual affections you'd see in the usual series.
Comments: Arguably the funniest fanfic in the fandom, and the best I've seen yet in the series from a pure humor standpoint. That it focuses less on pairings and more on the shenanigans the males in the series get into certainly helps its case as far as making sure the humor is rarely deviated from. Always good for a laugh if only because of the outrageous situations alone. Which someone was kind enough to help put to an actual image in regards to the prologue anyway◊.
Synopsis: Kamijou must join a sports event in Tokiwadai for merits. What happens if he ended up fighting all the level 5's?
Pairings: The usual Unwanted Harem hijinks Touma, Accelerator, and Shiage experience.
Comments: Insanely action-packed and hilarious. Seems to be set during New Testament. Touma's harem just grows and grows. Lots of surprises and Wham Episodes including the return of Teikoto Kakine, the person Touma used to be before he lost his memories getting his own body, One-Eyed Othinus turning Sherry Cromwell's long-lost friend Ellis into an undead servant, Touma fighting Misaki and the mysterious 6th level 5, ect.
Synopsis: In a bid to safe Last Order's life, Accelerator accidentally brings himself, the other level 5s, Touma, Shiage Hamazura, and Rikou Takitsubou to an alternate universe where everything, even the animals are different. Given a mission by a certain, mysterious goddess, the nine individuals will deal with different lives, and perhaps even love.
Synopsis: "When the man turned to look, he saw from the rock, a young woman bathing in the waters. She had the height of a girl, but all the qualities of a woman..."-Follow the secret history of Kihara Kagun, as he tries to search for magic, despite the cold land of the North, evil winds, vile wolves, dark drakes, and a haughty Dvergr, as he realizes its true and terrific nature.
Synopsis: Kamijou Touma has never been the luckiest person in the world; but due to that lack of good fortune he isn't ignorant to those in need. But a simple impulsive act results in him meeting someone who thrives in a darker world hidden beneath the surface. Now at the crossroads: will he trek into the unknown to save that girl or be devoured by the beasts that lurk within the darkness?
Parings: ToumaxMugino
Comments: Set before the main series, so Touma hasn't lost his memories nor met Index or Mikoto yet. Author is very wordy though.
Synopsis: Accelerator finds a drunk Worst and tries to take her home. But, so many people keep getting in the way, and funny crap keep happening. Characters drop hints on Accelerator on what is Worst to him.
Pairings: Accelerator x Worst
Comments: Very funny, it is slight AU, but it keep the theme and not really any OOC. Freakin funny ending, and cute moments. And a very ax crazyyandere Worst gets jealous of Awaki being with Accelerator.
Synopsis: Accelerator and Vento of the Front wake up and find that they are now married!
Pairings: AcceleratorxVento
Comments: Absolutely hilarious. These two are total potty-mouths, but it is heartwarming how they learn to make the relationship work. Plus, nothing beats Fiamma of the Right using the Jedi Mind Trick!
Synopsis: The Electric princess has fallen into a deep sleep from the curse of a witch, if only a wandering prince would kiss her awake. A humorous take on a classic fairy tale using the cast of TMnI. - from Baka-Updates
Pairings: ToumaXMisaka
Warnings: Has some sexy but is SFW (think To Love-Ru). The translators mainly translate Hentai, so don't go exploring their other stuff if that's not your kind of thing.
Comments: This is simply hilarious, and I think quite in character.
Synopsis: Sequel to Last Order In Your Eyes!. Once again the hero must brave the kitchen to expose his culinary skills; shamed by his previous disappointment he'll have to show his true potential as a chef, or this meal really will be... *puts on military goggles*... His Last Order. - from Baka-Updates
Pairings: Friendship AcceleratorXLast Order
Warnings: The translators mainly translate Hentai, so don't go exploring their other stuff if that's not your kind of thing.
Synopsis: Touma just wishes to have a nice, quiet Christmas. Predictably, he doesn't get one, but no one could guess who it is that ruined his Christmas this time: SANTA! Has a page.
Pairings: None.
Comments: Done in a Christmas carol style rhyme, this fic is a hilarious Christmas themed story with appearances by most of Touma's harem as they try to fight off an unlikely opponent.
Seconded. This might be the funniest fic you will ever read! I laugh so hard I couldn't stop.
Synopsis: A Puella Magi Madoka Magica/Index crossover fancomic, by Kosshii-san of Pixiv. This is Touma coming to Mami's rescue... TWICE. Well, the first was when he rescued her from her in-series Episode 3 end, and that's drawn before this one.
Comments: This fancomic shows why you must not mess with anyone that Touma has recognized as a friend. Not even being in numbers can save you anymore. Also Codename Strike's personal favorite crossover (well, just give him any remotely interesting Madoka/Index crossover and you're in for a treat.)
Comartemis: Seconded. The artist has a couple of other comics as well, one of which features Touma punching out Ocktavia and saving Sayaka.
Da Random User: Suspension of disbelief definitely required for this one regarding some plot material. That being said, don't get too hung up on the plot because watching Touma beat the snot out of a bunch of school-age punks is still intensely satisfying.
Recommended by Codename Strike. Well, d'uh, it's more or less a continuation from before, so why not?
Synopsis: Takes on during Homura's lone and hopeless battle against the strongest Witch, Walpurgisnacht. Just when all hope seems lost, another Strongest appears...
Comments: "Were you expecting Kamijou-san? TOO BAD! IT'S THE MOTHERFUCKING ACCELERATOR!!!", as per the (not-so, maybe exaggerated by a bit) exact words of Kosshii-san on his comment for this one. This is still ongoing as the Danbooru pool indicates two parts of the story. Also, Codename Strike just can't help but notice what a nice match the artist decided on - remember, Strongest versus Strongest?
Note: Best be served with a loud serving of Saikyou no Nanori for maximum Squee.
Synopsis: A Yu-Gi-Oh!/Index fic staring Motor-mouth, a character from PokeRescue18's other fic Crisis on Two PokeWorlds!. Motor-mouth is challenged to a duel by a strange magician. But whenever Motor-mouth summons a monster, a character from A Certain Magical Index appears wearing the monster's clothes instead!
Comments: Extremely hilarious, and reminiscent of the Yu-Gi-Oh episode when Bakura trapped everyone in their favorite cards. The duel is well done, using real-world rules. Plus, Accelerator becomes a Butt Monkey because his card keeps getting revived and sent back to the graveyard, and Kakine Teikotu gets destroyed as soon as he's summoned!
Synopsis: Sequel to A Certain Duelist's Dream. Motor-mouth is challenged to a duel by his Evil Knockoff, Darth Motor. Like before, whenever Motor-mouth summons a monster, a character from A Certain Magical Index appears instead. But with Darth Motor's Nordic deck, soon he's summoning members of GREMLIN!
Synopsis: Crossover with Suzumiya Haruhi. Aleister Crowley and the Magic Side learn of Haruhi's Reality Warper powers. He is convinced she is a Level 6 esper, while they are convinced she is God, except for the Roman Catholic Church, who think she is a dangerous heretic. The SOS Brigade and the Kamijou Faction must join forces to keep her safe from their schemes while at the same time oblivious to the supernatural. Has its own page.
Pairings: ToumaxHarem though mostly with Mikoto, KyonxHaruhi, KyonxMugino, ShiagexRikou
Comments: It's very funny, has awesome fight scenes, and at the same time keeps everyone in character and blends the two shows so well it might as well be canon.
Synopsis: Accelerator loses his climactic fight with Amata Kihara and dies. But he gets a second chance at life when Louise summons him as her familiar.
Comments: Yes, this is Accelerator being a total badass and pwning the people of Tristain.
Synopsis: A story about how Gensokyo is getting dragged into Academy City and Aleister's plots, and how/if the residents of Gensōkyō can prevent the disaster that is yet to come.