* AccidentallyAccurate: Ichika in the novels always called the [[{{Moe}} cute]] {{Sleepyhead}} girl with the long sleeves "Nohohon-san", which roughly means "Ms. Whatever" since he didn't know her name. On her end, she thinks he's calling her a shortened version of her real name. When Ichika finally admits he doesn't actually know her name in Volume 5, she gets upset, though she gets over it fast. Her real name is Nohotoke Honne, which meant Ichika was getting it pretty close the whole time.
* ActorAllusion:
** The following instances involving Ichika is this trope in relation to [[Main/KoukiUchiyama his seiyuu's]] role as the main character of ''Anime/MobileSuitGundamUnicorn'': the predominantly-white motif of his IS (and which name translates as "Type-White") as to the titular mech; his duel against Rin, posing and [[http://i56.tinypic.com/2vxixkj.jpg charging similar to the titular mech]]; and the OutOfClothesExperience scene with Houki in Season 1 Episode 11, which is based on the scene from Episode 3.
** As to Laura, her eyepatch is on the left eye instead of the right and she initially didn't use knives, [[YouWannaGetSued perhaps to avoid]] making her look and sound any more like [[Anime/MagicalGirlLyricalNanoha Cinque]] than she already [[Creator/MarinaInoue does]]. In the second season, her knives start seeing a ''lot'' more use.
*** Meanwhile the dub, it's apparently changed to resemble [[Anime/RebuildOfEvangelion another]] eyepatch-wearing TykeBomb.
*** The railgun on her IS has traces of this as well since [[Creator/MarinaInoue her seiyuu]] also voiced another character with [[Anime/TengenToppaGurrenLagann a long-barreled, high-output gun as her main weapon...]]
* BadExportForYou: The author had some fits with the publisher over an allegedly unauthorized Chinese localization deal, causing the series to be put on hiatus for a few months.
* FakeBrit: American VA BrittneyKarbowski as [[TheOjou Cecilia Alcott]]
* FanNickname:
** Honne Nohotoke gained the nickname "Pikachu-chan", due to her unusual beach costume in season 1 episode 9.
** Then there's "Neutron Star" for Ichika, due to his [[CluelessChickMagnet romance-related cluelessness]] which rivals even [[LightNovel/{{Kampfer}} Natsuru Senou]].
* [[HeyItsThatVoice Hey, It's That Voice!]]
** '''Original Japanese version''':
*** [[KoukiUchiyama Ven]][[VideoGame/KingdomHeartsBirthBySleep tus]] has been enlisted into an all girls school!
*** [[Creator/YokoHikasa Mio]] [[Manga/KOn Akiyama]] has taken up Kendo and remembers Ven was her first childhood friend!
*** [[Creator/{{Yukana}} Tessa]] [[LightNovel/FullMetalPanic Testarossa]] is an influential British aristocrat who hates weak men.
*** [[Creator/AsamiShimoda Crim]][[VideoGame/CosmicBreak rose]] is Ven's second childhood friend and is a flat chested ChineseGirl.
*** [[Creator/KanaHanazawa Mikan]] [[ToLoveRu Yuki]] is now a French boy. [[spoiler:[[{{Bifauxnen}} At first...]]]]
*** [[Creator/MarinaInoue Yo]][[TengenToppaGurrenLagann ko]] is now an eye-patched German SuperSoldier, who has almost the same character design as [[LyricalNanoha Cinque]], as shown in this [[http://safebooru.org//images/650/e78b4d6d8f06f8f9edf17e6293143e6e66e28d93.jpg picture]].
*** [[Creator/MegumiToyoguchi Aq]][[VideoGame/KingdomHeartsBirthBySleep ua]] is now Ven's older sister.
*** [[Creator/MaiKadowaki Ror]][[VideoGame/AtelierRoronaTheAlchemistOfArland ona]] is a catgirl pajama wearing side character.
*** [[Creator/YukariTamura Nan]][[LyricalNanoha oha]] is now the creator of the I.S. machines themselves. [[OhCrap Get ready]] [[DefeatMeansFriendship to be "befriended"]].
*** By the time Season 2 came in, [[Creator/ChiwaSaito Louise]] [[MobileSuitGundam00 Halevy]] is now the StudentCouncilPresident, and [[Main/SuzukoMimori Pinkie]] [[WesternAnimation/MyLittlePonyFriendshipIsMagic Pie]] is her younger sister... who is apparently a big fan of [[NobuyukiHiyama Guy]] [[Anime/GaoGaiGar Shishioh]] in a Super Sentai show. Also, how the heck did [[Creator/AiKayano Saori]] [[Anime/GirlsUndPanzer Takebe]] end up as a Phantom Task's black-haired AxCrazy BloodKnight?
** '''English dub''':
** [[KenichiTheMightiestDisciple Kenichi]] as [[Creator/JoshGrelle Ichika]].
** [[Manga/SoulEater Tsubaki]] as [[Creator/MonicaRial Houki]].
** [[Anime/DarkerThanBlack Kiko]][=/=][[Manga/SoulEater Black Star]] as [[Creator/BrittneyKarbowski Cecilia]].
** [[LightNovel/FullMetalPanic Tessa]][=/=][[Anime/PrincessNine Ryo Hayakawa]] as [[Creator/HilaryHaag Lin]].
** [[Anime/PumpkinScissors Elis]] with a thick French accent as [[Creator/ShannonEmerick Charles]] (or rather, [[spoiler: Charlotte]]).
** [[Anime/RahXephon Hotaru]] with a thick German accent as [[Creator/TiffanyGrant Laura]], double points for she was once [[Anime/NeonGenesisEvangelion Asuka]].
** [[LightNovel/FullMetalPanic Kaname]] as [[Creator/LuciChristian Chifuyu]].
** [[LightNovel/FullMetalPanic Mao]] (Allison Keith-Shipp) as Tabane.
* TheOtherDarrin: Not for the voice actors, but for the illustrators. Okiura has been I.S's illustrator for the first seven volumes. From volume 8 onwards (as well as reprints), CHOCO replaces Okiura as illustrator as part of the author switching publishing companies.
** Double for the animators: Media Factory was tasked with animating the story, until Overlap took over by the second OVA and season 2.
* RelationshipVoiceActor:
** ''KingdomHearts'' fans will finally have their wishes granted with the Orimura siblings: making [[KoukiUchiyama Ventus]] and [[Creator/MegumiToyoguchi Aqua]] as siblings.
** KoukiUchiyama has another harem in ''Manga/BinbouGamiGa'', which includes Creator/KanaHanazawa's character (whose name is Ichi''ko'').
*** And also in ''Manga/{{Nisekoi}}'' as Raku Ichijou and Kosaki Onodera, respectively.
* NoExportForYou: Averted with the anime series (both Season 1 and Season 2). Meanwhile, as for the novels, while there was a group that fan translated them up to Volume 8, the translating group itself was becoming quite irritated at the story's pacing and incessant fanservice, and as of now there are no active translators for Volume 9.
* ScheduleSlip: Due to the author's health, the sixth novel was delayed until December 2010, which was a six month gap between Volumes 5 and 6. Before this, the volumes had never been more than three or four months apart.
** After Volume 7 was published in April 2011, the author apparently had some kind of dispute with his publishing company. The result was that Volume 8 didn't get published until April 2013. In June 2013, Yumizuru mentioned (in an author's note in the reboot manga's 1st chapter) that he was working on Volume 9, but it still has yet to be released.
** Volume 9 was finally released on April 25, 2014, exactly one year after Volume 8.
* TheWikiRule: Still small, [[http://infinite-stratos.wikia.com/wiki/Infinite_Stratos_Wiki but it's there]].