At the end of it all, Nineball Seraph, the strongest Armored Core alive, fell, defeated in Isaac City. But the remains of the legendary sentient AC were never found. One Yukari Yakumo intervened at the last, dropping the wounded machine into the fantastical realm of Gensokyo, to a fateful meeting with the OTHER Nineball. Expect other A Cs and Super Robots to appear later, SRW style! - Synopsis
As the synopsis may have informed you, Armored Gensokyo is a crossover between Touhou, Armored Core, and Super Robot Wars written by DarkShiftRising (Better known as the writer of The Omega Chronicles). Set after the defeat of Nineball Seraph, the fic starts with Hustler One, the AI piloting Nineball Seraph, attempting to stay online after a vicious battle with Leos Klein leaves him barely operational. However, just as he is about to go offline, Yukari Yakumo herself arrives and, after a few words with the damaged AC, sends him to Gensokyo for, as she puts it, "Why, the rest of [his] life, of course!"This can only end well.The fic can be started here on deviantart, or here on Fanfiction.net.Armored Gensokyo has the following tropes:
Arbitrary Skepticism: Despite overwhelming evidence to the contrary, Hustler One absolutely refuses to acknowledge the existence of magic within Gensokyo. Partially Justified by the fact that he comes from a world where magic is non-existent, and to him "magic" is a very illogical explanation.
A.I.: Hustler One and Lana Nielsen. Lana is the more human one, while Hustler One is far more cold and calculating.
All There in the Manual: The various pieces of artwork done for this fic by the author sometimes have information on a character, including the benefits they get when they pilot certain mechs and A Cs
Babies Ever After: According to one piece of related art made by the author, Hustler One and Cirno (as an adult) will construct a child that is a mix of Cirno's magic and Nineball Seraph's technological superiority. It seems to be a joke based on a M.U.G.E.N character, but Word of God has stated it is, in fact, canon.
Bigger Onthe Inside: The Scarlet Devil Mansion, partially thanks to Sakuya's ability to manipulate spacial dimensions due to their connection to time
Birds of a Feather: Shu Shirakawa and Yukari Yakumo. Both are very intelligent, often have motives that are unknown to many, slightly snarky, somewhat vain, and have some way of manipulating space-time. (Shu has the Shin Neo Granzon, and Yukari has her Youkai powers). So naturally, there's a subtle hint of romance in their dialogue.
Although, said subtlety went out the window in the chapter after the one they're formally introduced in.
Charles Atlas Superpower: Meiling manages to knock Hustler One into Misty Lake, which, even for a Youkai, is pretty impressive. Usually, it's more of a Downplayed example, as she can only do that kind of thing with short bursts of Ki.
Fangirl: Sanae is one for Hustler One and Nineball Seraph. So much of one that she has a cosplay outfit of Nineball Seraph that she puts on almost immediately after she finds out Nineball is in Gensokyo.
Fish out of Water: Part of the comedy and drama of this fic comes from the fact that Lana and Nineball are trying to figure out how Gensokyo works.
Like a Fish Takes to Water: That said, Lana actually adjusts to Gensokyo pretty quickly, even learning how to utilize Danmaku incredibly quickly.
Genius Ditz: Cirno is a few cans short of a six-pack, but if Hustler One's simulations and reaction are to be believed, then Cirno has some bit of tactical genius going for her.
Insistent Terminology: Hustler One at refuses to refer to the ambient magic in Gensokyo as "magic", instead referring to it simply as "That energy", and even has to resist the urge to scrub his data banks when he does refer to it as magic.
Magitek: Nineball quickly learns he can use the magic of Gensokyo as a main source power.
No Kill Like Overkill: Shu Shirakawa's main method of keeping people from discovering his and Yukari's activities? Use the Shin Neo Granzon to destroy the entire arena with Black Hole Cluster.
Odd Friendship: Hustler One and Cirno, a giant mech controlling AI and a fairy that controls ice, respectively. They apparently get along well enough that, eventually, they'll construct a child together named simply '9', who looks like Cirno with Nineball Seraph's color scheme.
Oh Crap: Hustler One has this reaction upon realizing he was teleported into Gensokyo... Thousands of feet above the ground.
Lana Nielsen and Sakuya have this reaction upon realizing Hustler One and Cirno are getting along. Lana has no idea why she feels that way, but Sakuya has this reaction because she realizes that Nineball + Cirno's "idiot genius" = bad news.
Strange Minds Think Alike: Cirno and Hustler One get along quickly. Mostly because he figures out that Cirno's seemingly stupid tactics are, at least when physically possible for Nineball Seraph to pull off, actually very brilliant.
Troll: We haven't seen much of either, but considering both Word of God and just who they are, Shu and Yukari are shaping up to be this.
Villain Team-Up: Shu Shirakawa and Yukari Yakumo have apparently decided to team up, although like anything involving the two, it's impossible to tell for what value of villainous, as well as why.