Fractured Infinity is a Mega Crossover by Androzani84, primarily focusing on Kamen Rider and Super Sentai, with a few others working their way in.
Kaito Kumon, Yakumo Kato, Shinya Hiraga, Hiroto Sutou and Momo Maruo find themselves in a strange new world, where not only have their old enemies returned as a united front, but a mysterious watcher is commanding them to fight, if they wish to return home. Later joined by Hiroto’s sister Miu and Naoto Takizawa, this group, calling themselves “Fractured Infinity”, soon discover the dark secret behind this battle they’ve been forced into.
Can be found here, or cross-posted here.
Also has an Elsewhere Fic in the form of Before the Fractures. Can be found here and also here.
Tropes featured in Fractured Infinity include.
- Ambiguous Time Period: The world the heroes end up in is a fusion of their worlds, a year on from their victories over their enemies. This allows for concepts and items from the concurrently airing Toku series to be incorporated into the plot.
- Asshole Victim: Sakura’s grandfather is such an awful excuse for a human being that Kaito turning him into an Inves doesn’t come off as Protagonist-Centred Morality.
- Awful Truth: As in Gaim proper, the fact that Inves are actually humans is one to everyone other than Kaito, Yakumo (who read the former’s mind) and Shinya (who Kaito explained everything to).
- Back for the Finale: Kouta and Tsukasa make brief appearances in the last chapter, the former to hold Kaito down during the final battle, the latter to transport the heroes home.
- Big Bad: Kugai Kudo turns out to be the one manipulating both sides, carrying out the experiment in order to gain the power to conquer all of reality.
- The Big Bad Shuffle: The villain most involved in leading the assault on the heroes is Yogosmacritein, but then Kugai appears to take over, and after he dies, Yogosmacritein follows not long after, with Buldont becoming Dark Guild’s new leader until his demise.
- Bittersweet Ending: Kugai’s ambitions are stopped, the villains he brought in to serve him are destroyed or redeemed and the heroes get to return to their home universes. However, Kaito allowed himself to die to allow the new world to be at peace, and everyone forgets about their experiences after they return home.
- Brainwashed and Crazy: Doesn’t happen a lot, but it’s still enough to be noticeable.
- Chapter 9 has Momo becoming a Yankii.
- Chapter 19 introduces Naoto in this state, brought on be him having Came Back Wrong.
- Chapters 24-25 see Momo, Shinya and Miu being brainwashed into starring in Dark Guild’s film.
- Chapter 37 has a revived and empowered Debo Kyawaeen brainwash all but Miu (and Kaito, though he’d already left the group by this point) into showing affection towards her.
- Within Kugai’s Dark Bo Army, Kirika and Elin Are controlled by Armour Bōma and Schwartz respectively.
- Butt-Monkey: Yakumo retains his status as this from his own series, though slightly downplayed (and mostly self-enforced). Hiroto and Shinya also take some abuse.
- Canon Character All Along:
- The mysterious figure organising the fight between both sides turns out to be Kugai Kudo.
- His assistant Reika Sawaki, after several chapters of being a generic henchwoman, eventually becomes Kamen Rider Sylphi. And then she turns out to be the one from the show, rather than a Legacy Character.
- Cast Herd: The heroes and villains are split into groups that fight each other during the final battle.
- Comic-Book Fantasy Casting:
- Reika Sawaki’s appearance is based on Jiena from Kamen Rider Girls. This turns out to be significant.
- The head of staff at the Urobuchi Estate, Annabelle-Marie, is visually a cross between Romi Park and Sonim.
- Cool Bike: Kaito retains his Rose Attacker and Dandeliner, while Momo has her Jetter Machine. Yakumo also gets his hand on an unnamed one.
- Darker and Edgier: The Go-Onger portions, due to featuring Yogosmacritein as the representative villain, loses much of the comedy present in their home show (though it is still present).
- Denser and Wackier: The monsters deployed by Dr. Zora tend to be more comical than they were in Justiriser
- Disc-One Final Boss: Kugai ceases to be a threat with 9 chapters left in the story.
- Dragon Their Feet: After Kugai’s demise, Reika becomes a threat to Kaito for a few chapters.
- Ensemble Cast: Starts out with 5 characters all from different shows and one villains for each of them, and only expands from there.
- Even Evil Has Standards: The organisation running the experiment still cares enough about both sides to prevent any major deaths that could create a massive paradox. Downplayed, as it only goes so far before they’re willing to terminate the subjects as well.
- Legion of Doom: Dark Bo assembles one for every group in the simulation.
- Group 1 lacks one, but to create the chimera creature, Jin Matoba as Garouki, the Assassin Humagear, Satan Goth, Amazoness and Celebro are pulled in. Professor Monster is also present, but purely in the capacity of a mad scientist.
- Group 2: Damaras, Schwartz, Greeza, Narutaki and Saburo Hatte, thought the latter two are removed from the organisation for the main story, while Greeza is held back as a Diabolus ex Nihilo, to avoid a Story-Breaker Team-Up.
- Group 3 is made up of Big Bad level villains: Rita Repulsa, Daguva, Professor Gil as Hakaider, Mendoza, Alexis Kerib and Zhang Jue
- Group 4: Takeshi Asakura, Coolgin, Uva, Dayu, Gauche le Medou and Brajil the Messiah
- Group 5: Kirika, Dr. Ashura, Gorgon, Akyanba, Demost and Gatezone.
- Group 6: Hiryu Kakogawa, Insarn, Erin Suda/Aquarius and Marusheena.
- Group 7: Grey, Deizarus, Saeko, Medusa, Evil Torga and Deathzero.
- Group 8 has Masamune Dan, Banno, Evolto, The Ark, Demushu and Reydue.
- Fractured Infinity themselves retain Demushu, but group him off with Ariake no Kata, Dr. Zora, Yogosmacritein, Malthiua and Captain Ryuya.
- After the main villains are defeated, a new one is created to hunt down Kaito, consisting of Yugande, Kamen Rider Ryuga, Jun Kazu, Xaviax, Enter and Escape.
- Multiversal Conqueror: Kugai’s intended end result for the experiment.
- Not the First Victim: A few chapters in, Fractured Infinity discover evidence of previous subject groups, which a later chapter outlines in detail (along with their results), before an even later arc has them come into focus as part of the main cast.
- Group 1, dubbed “Mechanical Musketeers”: Ryou, Aruto Hiden, Yoko, Takuya Yamashiro and Juspion.
- Group 2, dubbed “Team Milestone”: Captain Marvelous, Tsukasa Kadoya, Sougo, Nobuo Akagi and Daichi Oozora.
- Group 3: Zack Taylor, Jiro, Knight, Alfonso, Yusuke Godai and Liu Bei.
- Group 4: Kaoru Shiba, Gosei Knight, Tsukasa Myojin, Tezuka, Eiji Hino and Ryusei Tsurugi.
- Group 5: Riki Honoo, Megumi Mori, Tsubasa Ozu, Hammie, Reiha Yagyu and Kotaro Minami
- Group 6, dubbed "Team Celebration": Captain Marvelous, Sougo, the Akibarangers and Gentaro Kisaragi.
- Group 7: Gai Yuki, Juyong, Takumi Inui, Mayu, Ray and Spielban, later joined by Diana.
- Group 8: Yaiba, Utsumi, Haima Kagami (as a Rider-Player), Honganji and Hase, later joined by Jonouchi.
- One-Steve Limit:
- Recurring Jerkass Shinya Ikari is mostly referred to by his surname to avoid confusion with Shinya.
- Played for laughs when Tsukasa wishes Kaitou were around to help steal from Dark Bo. Hiroto is briefly confused, but realises that this trope doesn’t apply.
- Upon meeting Zack, Kaito thinks back to HIS Zack.
- Outside-Context Problem: After his defeat, the dark AoNinger transforms into a Hitotsuki.
- Ragtag Bunch of Misfits: All of the teams, to an extent.
- Spiritual Antithesis: To Shattered Skies: The Morning Lights, as the heroes actually stop the villains from causing massive destruction, while the Men of Sherwood are far more capable of defending themselves and fighting off villains, with no Game Breaking Injuries.
- The World's Expert (on Getting Killed): Dr. Inaba is singled out by Kugai as a target to be eliminated for his knowledge of the experiment A result of being a former member of Dark Bo). Subverted, in that he mailed a disc containing the relevant information to the heroes beforehand.
- Tuckerization: The five targets in chapters 11 and 13 (12 being an interlude) are named after the head writers for the 5 (at that point in the story) featured series, most notably the Urobuchi Estate.
- Ultimate Showdown of Ultimate Destiny: There’s no better way to describe the battle between Fractured Infinity and their allies against Dark Bo’s assembled villains.
Tropes featured in Before the Fractures include:
- Badass Normal: The three victims in chapter 3, with Miku briefly managing to become a Damsel out of Distress.
- Bad People Abuse Animals: The cursed monkey toy in “The Demonic Birthday Present” kills a cat in one scene.
- Big Damn Heroes: Black RX appears to save Team 5 from the Human Enslavement Plan.
- Brainwashed and Crazy: The effect of Lens-Zuno’s powers.
- The Greatest Story Never Told: As mentioned in the introduction to the story, Each of the teams have forgotten these exploits, and most of the people that do remember who aren’t civilians are dead.
- Hero of Another Story: This is another story for each of the other teams (except for team 4, due to their limited timetable).
- Lazy Bum: The Villain of the Week in Chapter 3 is someone attacking his friends because they were able to gain entry to the martial arts nationals, while he didn’t. As his friends explain, he kept slacking off during the training sessions, so they eventually stopped inviting him, essentially making it clear he’s purely self-centred.
- Lower-Deck Episode:
- Chapter 2 is primarily told from the perspective of a man sitting on a train, heading to work.
- Chapter 4 is mostly focused on Masamune interacting with Sakura Megumi from the main series.
- Police Are Useless: The Police Sergeant takes less than a minute before deciding to hand the case off to the heroes.
- Small Role, Big Impact: Yapool barges into Team 1’s experiment and gets defeated by them during his attempt to defeat them, but the fact his battle produced better results than previous ones convinces Kugai to retry the experiment with different lineups facing major villains, which eventually leads to the main story.