Infinite Horizon (Nanoha x everything? crossover)

#1
I had this really ambitious idea for a massive Nanoha crossover series that I started a really long time ago, but never got around to finishing due to real life issues. I wanted to create something in the vein of Super Robot Wars, which I heard was an inspiration for the Nanoha series (even the name I chose was based on OG Saga: Endless Frontier). I wanted to share this idea for feedback without giving too much away, as I still plan on finding a way to get this done.

The setting is a multiverse, where every series involved each exist on their own worlds, separated by dimensional barriers that can only be crossed with advanced magic or technology, like what the TSAB has. The different worlds also have different time axes, so a day in one world might equal one week in another. I also toyed with an idea of "dimensional resonance", where someone from one world might become weaker when fighting in another world, in order to balance out power levels.

Book 1: Dawn
The first story arc would take place during the first Nanoha series, and instead of the Jewel Seeds all being on Nanoha's Earth, they were scattered across the multiverse. The Jewel Seeds would then begin "reaching out" to each other, causing rifts between the different worlds and bypassing the dimensional barriers. The chaos caused by the rifts would force Nanoha and the other involved characters to work together to gather the Jewel Seeds and hopefully close the rifts, but the villains from their worlds would also take advantage of the chaos. It would be slightly light-hearted, with a few serious moments for key events.

Series (pending):
Magical Girl Lyrical Nanoha
Mega Man/Rockman (AU original story)
Powerpuff Girls Z
Teen Titans
Pretty Cure
Fate/stay night
Slayers

Book 2: Twilight
The second arc would cover Nanoha A's, with the multiverse still suffering from the aftershocks of the events from the first arc, with occasional rifts appearing. To deal with the Wolkenritter and the Book of Darkness, as well as new hostile factions appearing, the TSAB forms a new peacekeeping group from several of the characters from the first arc, along with some new characters. The big twist is that the main villain of the arc manages to take control of the Book of Darkness and bypass its curse, then attempts to form a coalition with villains from other worlds. The tone of the story would take a more serious turn from the first arc.

Series (pending):
Magical Girl Lyrical Nanoha A's
Fate/stay night (continuation)
Pretty Cure Max Heart
Fresh Pretty Cure
Mega Man/Rockman (AU original story)(continuation)
Slayers Next
Strike Witches
Teen Titans (continuation)
OC Characters (original story)

Book 3: Dusk
The third arc would cover Nanoha StrikerS, after a time skip in Midchildan time. It will involve a civil war in Midchilda that ends up spreading to other worlds, with rebels fearing the TSAB's growing power after the establishment of the group from the second arc. It would also involve the return of the main villain from the second arc, who wants revenge on Nanoha and her friends. The tone and pace of the story would be the most like a Super Robot Wars game/story, with the entire multiverse on the brink of all-out war and collapse.

Series (pending):
Magical Girl Lyrical Nanoha StrikerS
Fate/stay night: Unlimited Blade Works (some elements)
Pretty Cure Max Heart (guest)
Fresh Pretty Cure (guest)
Heartcatch Pretty Cure
Puella Magi Madoka Magica
Mega Man/Rockman (AU original story)(guest)
Slayers Try
Strike Witches 2
Teen Titans (continuation)
Busou Shinki (guest)
OC Characters (original story)(continuation)

Infinite Horizon Next
The fourth, and currently final, arc I have planned would cover some events from Nanoha ViVid, as well as some elements from Battle of Aces/Gears of Destiny, and would be told from two perspectives: Nanoha and an original character. They would both be on opposing sides, and though they would go through different experiences, their stories would intersect from time to time. The ending of the story would change slightly depending on which side is read.

Series (Side Nanoha)(pending):
Magical Girl Lyrical Nanoha ViVid
Magical Girl Lyrical Nanoha: The Gears of Destiny
Ben 10 Omniverse
DokiDoki! Pretty Cure
Monster Hunter 4 Ultimate
Mega Man/Rockman (AU original story)(guest)
Slayers Revolution/Evolution R
Teen Titans (continuation)
OC Characters (original story)(guest)

Series (Side M???)(pending):
Magical Girl Lyrical Nanoha ViVid
Magical Girl Lyrical Nanoha: The Gears of Destiny
Fate/kaleid liner PRISMA*ILLYA
Fullmetal Alchemist Brotherhood
God Eater
Kill La Kill
Senki Zesshou Symphogear
Suite Pretty Cure
OC Characters (original story)(guest)

Along with feedback, I would also like to hear suggestions and recommendations for others series I could use, but I have a few restrictions:
- No live-action/tokusatsu (Kamen Rider, Power Rangers, etc.)
- NO Bleach, Naruto, One Piece, or DBZ! (I will smack you if you recommend any of these!)
- No currently ongoing series

I'm even willing to ask for suggestions for OCs, though I will review them carefully before deciding whether or not they would be able to fit in the story.
 

Azure

Well-Known Member
#2
Well, the thing with stories like this is that having big cast lists makes it hard to handle things, my suggestion is to focus on maybe one or two series and just do a traditional crossover. But if you still want to go for the SRW-style crossover I suggest that you try to find more series that have things in common so you can say that they all happen in one or two dimensions to keep things simple. For example, if you have Slayers, maybe add in another fantasy magical series or two to the list so you can have them happen in a shared setting to keep things flowing fast. Same with Precure, Teen Titans and PGZ, you can have all of these series share setting without too many problems and that way you keep avoid having to jump around too much. Also maybe just avoid regular Fate and just do Pri-Illya, it fits more with the Magical Girl setting and it's easier to justify than regular fate. Also, remember to include an OG villain faction to facilitate the crossover elements and tie in the villains, it really helps make things feel more cohesive in the long run.

Anyhow, good luck on this, you probably will need it to handle so many series and plots.
 
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