-> "''Sorry, but this crossover was bound to happen eventually...''"
-->'''[=NaXyld=]''', the author of this fic.

As Time Diverges: The Mitakihara Case is a Manga/DeathNote[=/=]Anime/PuellaMagiMadokaMagica crossover fanfiction that asks the question of "What if Light and L were in Mitakihara City during the course of Puella Magi Madoka Magica?" then answers it like so.

In an AlternateTimeline, Light doesn't pick up the Manga/DeathNote and it falls into the hands of someone else who disposes of it soon after. Light is soon recruited by L to investigate a case involving disappearing girls. As part of the investigation, they spy on one Tomoe Mami, disguised as teachers. This leads them to the world of the Puella Magi, [[ForegoneConclusion where death and despair]] [[YouCannotFightFate will obviously follow]].

[[http://www.fanfiction.net/s/6921201/1/As_Time_Diverges_The_Mitakihara_Case The story can be read here]]. Though just be warned for spoilers from both sides.

It's sequel can be read [[http://www.fanfiction.net/s/7432607/1/24_Days_The_Second_Mitakihara_Case here.]] It involves a fusion with ''LightNovel/LChangeTheWorld''.

!This Crossover Contains The Following Tropes

* AdaptationDyeJob: Light has orange hair and L has blue hair in this, as they did in the Manga.
* BatDeduction: This is usually how L figures out about certain things.
** As does Light in Chapter 15.
* BatmanGambit: L's plan [[spoiler: to make Madoka a goddess]] goes without any hitch... Okay, [[spoiler: maybe the rise of Kira being one, but other than that, all according to plan]].
** [[spoiler: And even Kira is erased in the post-goddess timeline, since no witches means no Shinigami King means no Death Note; so Light is a good guy.]]
* BeenThereShapedHistory: L is the one who [[spoiler:gave Madoka Sayaka's Grief Seed]] in a previous timeline.
* BreatherEpisode
** Chapter 7, although since it's adapting Episode 5, it's a given.
** Chapter 12, which is a short chapter to boot too.
* ByTheEyesOfTheBlind: Kyubey still can only be seen by Puella Magi and those with potential to be come Puella Magi, but he is also seen by L due to being TouchedByVorlons. [[spoiler:Light also sees Kyubey after Sayaka becomes a Puella Magi.]]
* CallBack: To Manga/DeathNote's scene with L falling off his chair after hearing about Shinigami. Replace Shinigami with Magical Girls.
* TheCameo: [[spoiler:Beyond Birthday]] is mentioned by Kyouko in her BackStory.
* CanonForeigner: There are several Witches that appear in this fan fiction that weren't in the anime. See ShoutOut below to see where they came from.
* CassandraTruth: Part of the reason why L didn't want to explain [[spoiler:that Soul Gems become Grief Seeds]] to Madoka and Sayaka. The other is that it would make things worse for them.
* ChekhovsGun: Light's hand gets bitten by the suicidal woman in episode 2. This [[JustForPun bites]] him in the ass when he [[spoiler:tries to save Mami]].
* CreatorBreakdown: Pointed out in 15, where [=NaXyld=] says that he is having one and that all his stories take a dark turn when he has one. ''[[FridgeHorror All]]'' [[FridgeHorror his stories]].
* {{Crossover}}: Well duh. But it also briefly crosses over with "''Homura's Encyclopedia of Witches''". See ShoutOut below for more details.
* ContinuityOverlap: [[spoiler:The Shinigami King and Death Notes were created by a girl contracting with Kyubey and wishing for someone to die. In fact, the Shinigami King is a Witch.]]
* ContinuityNod: Kyouko calls out the finishing attack name that Mami suggested in one of the CD dramas [[spoiler:as she sacrifices herself to kill Octavia.]]
* CurbstompBattle: [[spoiler:Octavia]] gets both ends of the spectrum in two separate battles. In the first battle, she was defeated by Walpurgisnacht, and the second battle, she beats down Elsa Maria. Even L noted about how easy that second battle was.
* DarkMessiah: [[spoiler:Light. A bump down from AGodAmI.]]
* DyingDeclarationOfLove: [[spoiler:Kyousuke's last words to Sayaka in chapter 17.]]
* EvilRedhead: [[spoiler:Light]]
* FaceHeelTurn: [[spoiler:[[RuleOfThree Light]]]]
* {{Foreshadowing}}: Tons in regards to the second AwfulTruth. There is also one to [[spoiler:Kyousuke's operation]] and quite a few to L's unique properties.
* ForegoneConclusion: A lot of Madoka fans will see where the twists will come. [[spoiler: Until Chapter 9 that is.]]
* HeelFaceTurn: Madoka's wish in the first timeline in this fic was to invert [[spoiler:Light's]] FaceHeelTurn.
* HeroicBSOD: Light and L after [[spoiler:Mami's death.]] They move on from it, but it hits them hard.
* HeroicSacrifice: Like in Madoka, [[spoiler:Kyouko sacrifices herself to destroy Octavia, but Mami helps her out in it as well.]]
* IdiosyncraticEpisodeNaming: A few chapters follow Madoka's style.
* ImmuneToBullets: Much like Madoka, this trope is averted as well.
* InSpiteOfANail: Octavia still disappears prior to Walpurgis Night, [[spoiler:but this time she lives. She arrives during Walpurgis Night however, but gets curbstomped by Walpurgisnacht]] .
* ManipulativeBastard: [[spoiler:The fanfic goes with the interpretation that Kyubey had planned for stuff like Mami's death and Kyousuke's failed surgery to happen]].
* MustLetThemGetAway: [[spoiler:L allows Light to get away, much to Homura's dismay.]]
* NiceJobBreakingItHero: [[spoiler:Light ends up with the Death Note and becomes Kira after L manipulates Kyubey into going back in time as part of a BatmanGambit]]
* NoKillLikeOverkill: L [[LampshadeHanging points this out]] to Mami when she pulls off the infamous "Unlimited Musket Works" attack.
* RedOniBlueOni: Light is red, while L is blue, as represented by their hair colors.
* RousingSpeech: L delivers this to Mami when she talks about how lonely her life is before she fights Charlotte. [[spoiler:Twice]].
* SetRightWhatOnceWentWrong: [[YouShouldKnowThisAlready Naturally.]] However, Chapter 12 shows an exclusive example in the form of having ''L'' subdue the suicidal woman instead of Light as it will [[ItMakesSenseInContext prevent her from biting Light's hand]]. This turns out to be the best route.
* ShoutOut: A few are given towards Abicion's "''Homura's Encyclopedia of Witches''" fan-fiction. Some of the victims in the case are related to some of the Witches and a few Witches replace some of the Witches from Madoka.
** And in the epilogue, there's a little shout-out towards {{FanFic/Coccinea}}, with the line that originally appears in the VisualNovel ReCut's TheEnd screen:
-->"We remember her, so we are not alone."
* SparedByTheAdaptation: The {{Asshole Victim}}s in the train are spared from Sayaka's wrath, though not from L's.
* TheStationsOfTheCanon: The story follows the same flow as Madoka Magica. Mami saves Light, L, Sayaka, and Madoka to her fighting a Witch to [[spoiler:Mami dying]] to Sayaka being a Puella Magi to Sayaka and Kyouko fighting to the AwfulTruth to Hitomi telling Sayaka that she likes Kyousuke to [[spoiler:Sayaka's Witchification]]. It starts to split off from the plot however [[spoiler:when Light kills Kyouko prior to her fight with Sayaka's Witch.]] Not to mention L's deductions and his conversations with Homura making another split from the plot.
** As of Chapter 12, it's following ''it's own'' stations of the canon, with massive changes to the formula.
* [[spoiler:TogetherInDeath: L dies in the final chapter of the sequel, but thanks to the Soul Gem that Madoka gave him in the third chapter, he was welcome to her Paradise in order to prevent him from fading into nothingness. There, he was reunited with the other Puella Magis, including Watari.]]
* TouchedByVorlons: The reason why L can see Kyubey, is immune to the Witches' curses and decipher Runes. [[spoiler:He was affected by Madoka's magic.]]
* TrademarkFavoriteFood: L and cake, obviously. [[spoiler:That is until Mami dies. He then stops eating cake due to how he compares the cake to Charlotte. He shifts to Kyouko's TrademarkFavoriteFood, Pocky.]]
* TranslationConvention: L can translate Witch Runes. [[spoiler:The reason? He spent a previous timeline deciphering them, then having Madoka use her magic to preserve L's memory.]]
* WhamEpisode: Since it does follow the plot of Madoka, of course it has the following Wham Episodes.
** Chapter 5 is an adaptation of Episode 3 [[spoiler:in which Mami dies]].
** Chapter 6 makes Episode 8's reveal appear a little early, what with L being TheSmartGuy.
** Chapter 8 adapts Episode 6 [[spoiler:in which the first AwfulTruth is revealed]].
** Chapter 9 on the other hand, while it adapts Episodes 7 and 8, pulls off a twist with [[spoiler:not only having Light turning evil, but also having him ''kill'' Kyouko before she confronted Octavia.]]
** Chapter 10 [[FromBadToWorse gets worse]] when TheReveal of Episode 9 rears its head. [[spoiler:Also, it turns out that L got tied up in Madoka's Fate Lines since the third time line ''and'' Kyubey is responsible for Kyousuke's failed operation, all to make Sayaka contract.]]
** Chapter 11 has [[spoiler:Homura becoming Walpurgis Night and L ''dying''. Also, time's reset now.]]
** Chapter 14 compared to the other wham episodes has little punch, but the fact that [[spoiler:Sayaka still contracted and that Kyouko is still going to Mitakihara City to fight some Magical Girls doesn't exactly help matters]].
** Chapter 15, much like chapter 14, has little punch compared to the others, but it does have [[spoiler:Light finding out about one of the Magical Girl's AwfulTruth and it ends with L beginning to tell the girls the other AwfulTruth.]] On a Meta Standard, the reveal that there will be a sequel might shock some people.
** Chapter 17 is where things really begin to hit the fan. [[spoiler:L allies with Kyubey. Kyousuke dies. Sayaka becomes a Witch again. Mami and Kyouko sacrifice themselves to kill her. L is doing all this to make Madoka a goddess. Kyubey eliminates L from the timeline, then asks Ryuk to drop the Death Note on a time in which Light would notice and use it to become Kira. Oh, and the Shinigami Realm is a Labyrinth and the Shinigami King is the Witch in that Labyrinth.]]
* WholeEpisodeFlashback: With Chapter 10 covering Episode 10 of Madoka, it's expected.
* YouCannotFightFate: [[spoiler:Mami and Sayaka]] still have their fates sealed, and while Light tried to save [[spoiler:Mami, the pain from the bite he received from the suicidal woman threw off his aim.]] [[spoiler:Kyouko still dies, but from different means.]]
** As of Chapter 12, [[spoiler:it's subverted]].
* YouHaveOutlivedYourUsefulness: Non-lethal version. Kyubey [[spoiler:eliminates L from the timeline.]]
* YouShouldKnowThisAlready: Much like all Madoka fanfics, crossover or not, [[spoiler:InUniverse AlternateTimeline is at play here.]]
* VisionaryVillain: [[spoiler:Yeah, even without the Death Note, Light still gets this mindset, although he doesn't go for the AGodAmI route.]]
* WhatTheHellHero: Light calls out L for [[spoiler:allying with Kyubey]].