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Fanfic / A Certain Magical Friendship

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What had formed might perhaps be better described as a crack. However, this was not a crack in some wall. This was a crack in the fundamental rules that allowed two completely different stories to be told in the same place. Being forced through a crack in stone might take some skin off. Being forced through this... would have very different effects.

A crossover series by Sora2455 between My Little Pony: Friendship Is Magic and A Certain Magical Index. After Index and Zecora accidentally create a portal between Academy City and the Everfree Forest, things quickly get out of hand when Nightmare Moon crosses over and causes Nightmare Night over there as well.


Different from the host of other portal-based crossovers in that this portal rebuilds whatever travels through it until it matches its destination world. Twilight the unicorn becomes Twilight the cabal magician, and Misaka the Electromaster becomes Misaka, the pegasus who likes to keep lightning bolts in her fur.

The series currently has three stories in it, with the third being written and more planned out. It is cross-posted on Fimfiction.Net, FanFiction.Net, and Archive of Our Own. Links to the various stories are maintained in this google doc.


This series contains the following tropes:

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    The series in general, or over multiple entries 

    Context SHIFT 
  • The End of the World as We Know It: Nightmare Moon's Eternal Night, which, by removing the light of the sun, would eventually make it too cold for life to survive.
  • Fairy Ring: The basis of the magic that created a portal to Equestria, as said in the first chapter, is that store-bought mushrooms can be used to recreate mystical fairy circles that act as bridges between worlds.
    There was a certain Celtic myth that if mushrooms were found growing in a circle, it meant that place was an invisible space filled with fae and misfortune; so different that it could be said to be another world. Using that story, along with a handful of store-bought mushrooms, Index could create a circle inside of which counted as "another world".
  • Outside-Context Problem: Nightmare Moon shuts off the sun as it's rising over Academy City.
  • Safe Under Blankets: In "Assault on the City of Science -- magicians_AND_espers": Fluttershy wants this, when the day needs saving:
    Unlike the others, Fluttershy hadn't moved from her spot in the park. She couldn't — if she tried, she was sure that she would just dive back down the hole to Humansville and hide under her covers, hoping desperately for someone much braver than her to save the day.
  • Sequel Hook: After the baddies are defeated, the repercussions of changing the plots of both series are expanded on. The Tree of Harmony goes dormant, as nobody bonded to the Elements of Harmony. God's Right Seat want to know just who extinguished their Lord's holy sun. Crowley starts to send the Misaka Sisters into Equestria as scouts.
  • Thinking Up Portals: A hole in the ground, in both Equestria and Academy City, where falling into it takes people into the other world.
  • Translator Microbes: Subverted, no magical translation of any kind here. Only the characters who know both Japanese (Neighponiese) and English (Equish) can talk to the cast of both series.

  • Knight of Cerebus: Accelerator, after he rips a Sister clean in half. Right in front of Kuroko and Twlight.
  • Raised in a Lab: In the last chapter of Mirror_Noise, it's revealed that the #1, 2, 4, and 5 Level 5 espers were raised in labs, presumably so the scientists could optimize their power growth, and to be more controllable, in contrast to the #3, which had an actual family.
  • Reality-Breaking Paradox: The portal fails to translate Touma; apparently Equestria can't handle Imagine Breaker. When he arrives, the now-ponified Index can only perceive him as a nothing where there should be something. She's able to piece together what he is by logical deduction, and in the process teaches Equestria itself how to handle him.