[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/Ryvius_Cast.jpg]]

->''"I don't want to die. I want to live."''

''Infinite Ryvius'' (''Mugen no Rivaiasu'') is an anime series set in the year 2225 AD. A NegativeSpaceWedgie called the "Geduld Phenomenon" has created a sea of plasma stretching across the solar system in-line with the orbital plane of the planets, leading to a rise in space travel and the colonization of many planets. The space station Liebe Delta is a training center for children who wish to become astronauts. However, the station harbors a dark secret, which leads terrorists to sabotage it and send it plunging into the Geduld. All of the instructors on board sacrifice their lives to save the students. In the aftermath, 486 children of varying ages find themselves aboard the Ryvius, a mysterious spaceship which was concealed within the core of Liebe Delta. With limited supplies, no adult supervision, and hostile forces still after them, they struggle to escape their pursuers and form a stable society. All they want is to be rescued - but a GovernmentConspiracy has convinced the media that the Ryvius has actually been commandeered by the same terrorists who destroyed Liebe Delta, so finding safe harbor will be no easy task.

While the series has LoadsAndLoadsOfCharacters, with at least 33 named recurring characters, most episodes focus on a few core cast members. There's Kouji Aiba, an OrdinaryHighSchoolStudent (or astronaut-training equivalent thereof) and main protagonist; his younger and far more violent brother Yuki Aiba; their childhood friend Aoi Housen; the charming but fervent Ikumi Oze; and the mysterious girl in a strange pink outfit who nobody recognizes and who seems to appear and disappear like a ghost (Neya). Other significant characters include the arrogant Zwei (elite cadet) leader Lucson Houjou, the popular and talented Zwei member Juli Bahana, the vicious gang leader Airs Blue, and the religious girl Faina Shinozaki.

The show has been described as a cross between ''Series/LostInSpace'' and ''Literature/LordOfTheFlies'', by way of ''Literature/TheHuntForRedOctober''. It won the 2000 award for Best TV Animation at the fifth animation Kobe.
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!!Tropes:
* AbsurdlyPowerfulStudentCouncil: After all the adults die, the Zwei elite class decide that they're in charge.
* AccidentalKiss: Happens between [[spoiler: Kouji and Aoi]] in Episode 13. [[spoiler: Aoi]] spends most of the next episode angsting about it.
* AccidentalMisnaming: In Episode 4, Team Blue nicknames [[UnfortunateNames Good Turtleland III]] "Charlie." Despite his insistence on being called by his real name, it is [[OnlyKnownByTheirNickname all but forgotten]] within a few episodes. Viscuess also, puzzlingly, refers to the ''Ryvius'' as the ''Brattica''
* AllGirlsWantBadBoys: Played straight from Episodes 16-25 with[[spoiler: Juli and Blue]]; averted with [[NonActionGuy Kouji]], whom both Aoi and Faina are in love with.
** Gender-flipped (Or not, see {{Transsexual}} below) with Charlie and Criff. While Charlie is an easily manipulated, but good at heart, boy, Criff is a manipulative juvenile delinquent, until [[spoiler: she realizes that Charlie genuinely loves her in Episode 16.]]
* AloofBigBrother: Inverted, Yuki is Kouji's ''younger'' brother and is cooler, stronger, taller, and better looking than the nebbish, goodie-two-shoes Kouji.
* AnimeFirst: The manga is a {{POV Sequel}} from Aoi's point of view.
* ApocalypseHow: A single Vaia Ship can do a Planetary/Physical Annihilation. A second Geduld Phenomenon would cause a Stellar/Physical Annihilation.
* ArtificialGravity: Only in Vaia Ships; the depiction of gravity in conventional ships is pretty realistic.
* AscendedExtra: Cullen starts the series as a background character collecting music; she evolves into an ActionGirl mecha "pilot" and Yuki's girlfriend.
** Natalie Sheen, a girl with prominent glasses who sometimes appears in the background but has no spoken lines, gets development in the manga and drama [=CDs=].
* AxCrazy: Most notably the captain of the ''Blue Impulse'', though all of the captains of the Vaia Ships go insane in combat. It's implied that the {{phlebotinum}} is detrimental to their mental health.
* BatmanCanBreatheInSpace: [[JustifiedTrope Justified]] in-universe. Several characters (even Radan, aka "[[FanNickname Pillow Boy]]") are seen doing repair work on the hull without spacesuits, as the ''Ryvius'' is capable of creating both an artificial gravity field and atmosphere around itself.
* TheBattlestar The ''Ryvius'', the ''Impulse'', the ''Dicastia'', and the ''Geshpenst''.
* BettyAndVeronica: Aoi and Faina are this for Kouji.
* BewareTheNiceOnes: When Kozue is [[spoiler:beaten]], Ikumi snaps ''HARD''.
* {{BFG}}: The ''Ryvius'''s Barge Cannons can detach to be used as guns by the Vital Guarder.
* BookEnds: The [[TheTeaser cold openings]] to the first and last episodes.
* BottomlessMagazines: Averted: due to wasteful firing, the ''Ryvius'' eventually runs out of ammo for its Barge Cannons.
* Creator/BradSwaile: Kouji Aiba
* BrotherSisterIncest: Part of [[spoiler:Ikumi]]'s backstory
* BreakTheCutie: Too many examples to name.
* BridgeBunnies: The Zweis
* ButtMonkey: Lucson Houjou, the self-proclaimed leader of the Zwei and captain of the ''Ryvius''. After being deposed, he is forced to work as the ship's janitor, frequently has his clothes stolen, and is constantly ridiculed by his fellow students. Even eight-year-old Pat thinks Lucson is "uncool."
** However he's redeemed in the end, [[spoiler:when his fellow students offer him the position of Captain and seem to treat him in a more friendly way; even Heigar seems to be more mellow towards him]].
*** Kouji and Charlie should probably be under this entry as well.
* CainAndAbel: Kouji and Yuki
* CameBackWrong: A rather loose case: [[spoiler:Neya based her humanoid form off the body of a dead soldier floating out in space near the ''Ryvius'' at the time of some [[NoodleIncident vaguely-alluded to incident]]. That s oldier was Anjay Viscuess, Conrad Viscuess's daughter. This leads to Conrad momentarily thinking his daughter had come back from the dead when Neya confronts him on the bridge of the ''Geshpenst'']]
* CassandraTruth: When the children on the ''Ryvius'' send out the distress call, the military assumes that the signal is a trick by terrorists who have seized control of the ship.
* CharacterDevelopment: Everyone goes through it, with the biggest examples being Kouji, Charlie, and Lucson.
* ChekhovsGun: There is exactly one gun aboard the ''Ryvius'', stolen from one of the terrorists. It naturally plays an important role.
* ChildhoodFriendRomance: Kouji and Aoi
* ChildrenAreInnocent: Played surprisingly straight with cute little boy Pat, who maintains his innocent personality throughout the series.
** However, this doesn't apply to the next youngest characters, Nicks and Michelle, who are just as devious as their older classmates.
* ComingOfAgeStory
* ConverseWithTheUnconscious: In Episode 24, after [[spoiler: Kouji is shot and wounded by Ikumi, then treated by Criff]], [[spoiler: a heartbroken Aoi]] spends a good amount of her remaining screentime in the episode begging for him to regain consciousness.
* CoolStarship: The Vaia ships.
* CorruptChurch: Faina's religion inspires Kouji at first, but grows more malignant as time passes. [[spoiler:This turns out to be the PathOfInspiration, as Faina was deliberately twisting the teachings of her actual religion.]]
* CreepyMonotone: Neya speaks like this, except when the collective emotions of the crew reach a high point.
* DeclarationOfProtection: [[spoiler: Ikumi]]'s overriding motivation for the later half of the series, after [[spoiler: Kozue]] is assaulted in his absence. This leads to several murders and a few more attempted. But hey, UtopiaJustifiesTheMeans, right?
* {{Delinquents}}: Airs Blue and his gang.
* {{Determinator}}: Conrad Viscuess
* DidTheyOrDidntThey: [[spoiler: Kouji and Aoi at the end of Episode 21. Nothing explicit is shown, but the two are seen embracing, then falling onto a bed. The manga makes this scene much more obvious that they had sex.]]
** [[LampshadeHanging Lampshaded]] in an episode of Ryvius Illusion, where Kozue sends "fanmail" asking whether they "did it." Needless to say, [[spoiler: Aoi]] is not pleased...
* DistantFinale The very end of the final episode takes place thousands of years after the events of the series.
* {{Driven to Suicide}} Airs Blue, at one point. But he doesn't go through with it. [[spoiler:Viscuess on the other hand does, once he realizes he's thrown the entire weight of Earth's naval forces behind destroying a ship crewed by ''children'']]
* DolledUpInstallment: According to some sources, ''Ryvius'' is actually based on a rejected pilot version of ''SpaceBattleshipYamato'' written before LeijiMatsumoto's involvement in its development.
* EasilyForgiven: A lot of people do a lot of bad things over the course of series and every one of them, even [[spoiler:Faina, Heigar and Ikumi]] are forgiven for their crimes
** Last episode strongly suggest that even [[spoiler: Blue and Ikumi]] got a second chance.
** Don't forget that the epilogue takes place nine months after the end of the actual events. One can assume the process of forgiveness wasn't so easy. And it's shown that not everyone managed to forgive and forget.
* EarnYourHappyEnding
* EarthShatteringKaboom: [[spoiler:Hyperion-shattering kaboom]]
* EmpathicWeapon: Neya and the other Sphixes of the Vaia ships; the effect is two-way with the ships' captains -- if they have any.
* EmotionlessGirl: Neya begins the series as a blank slate; by episode 22 she's capable of talking and acting like a normal human, as being around the kids has helped her learn by osmosis what it's like to be human
* EngineeredPublicConfession:([[spoiler:Heigar]] records [[spoiler:Airs Blue]] talking about stealing the Vital Guarder and abandoning the crew of the ''Ryvius''. He later plays the recording via intercom. Break out the TorchesAndPitchforks
* EvenEvilHasStandards: Even Blue, who took over the ship at gunpoint in the earlier episodes, is disgusted by what [[spoiler:Ikumi]] degenerates into by the end of the series
* EverybodyLives: Sort of; [[spoiler:All but two named children who survive the initial disaster survive to the end]])
* EverythingTryingToKillYou: For a time it looks like if the government didn't get them, they'd have killed themselves eventually anyway
* EvolvingCredits
* ExpositoryHairstyleChange: Kozue stops putting her hair up into pigtails, representing her loss of innocence after [[spoiler:being attacked by the other girls and likely sexually assaulted.]]
* FailureKnight: Ikumi is motivated primarily by [[spoiler:the death of his sister]]
* GeneralRipper: Conrad Viscuess, captain of the Grey ''Geshpenst''
* TheGhost: The fifth and sixth Vaia ships are alluded to, but never seen on screen, partly because the ''Geshpenst'' (Vaia ship #4) is rushed out of drydock as a last-ditch effort to capture the ''Ryvius'' before it leaves the solar system.
* GovernmentConspiracy: The reason why the children aren't rescued right away
* GratuitousForeignLanguage: The names of the Vaia ships. "Impulse" is obviously English, "Dicastia" comes from the Greek word, "dikastis," meaning judge, and "Geshpenst" comes from the German for ghost. "Ryvius," on the other hand, seems to come from a variety of English words and phrases, including "Leviathan" and "Reawake us." As for Brattica...your guess is as good as mine. [[GratuitousForeignLanguage Gratuitous Gibberish]], perhaps?
** However, almost all of the English used in the series is gramatically correct.
* GratuitousGerman: Quite a few of the characters have German names, some of which sound as though they were pulled from a "Beginning German" textbook. For example, three of the Zwei are named Stein, Eins, and Kreis. While "Stein" is used as a given name in some countries, it seems a bit silly that two of the characters would have the German words for "one" and "circle" as their given names.
* HelloNurse: Criff, who actually is a [[HospitalHottie nursing student]].
* HeroicSacrifice: The instructors on Liebe Delta, who sacrifice themselves to save the children. Particularly notable is Pat's father, who gets FamousLastWords as he begs for the plan to work while being crushed and incinerated by the Geduld
* HeyItsThatVoice: In the English dub Koji is [[Manga/DeathNote Light Yagami]], Yuki is [[{{Inuyasha}} Miroku]], Kozue is [[Manga/BlackLagoon Gretel]], Neya is [[Anime/MobileSuitGundamSeed Lacus Clyne]], Airs Blue is [[MegaManNTWarrior MegaMan]], Juli is {{Franchise/Barbie}}, Ikumi is [[WesternAnimation/{{Silverwing}} Shade]], Faina is [[WesternAnimation/StormHawks Piper]], Criff is [[ShakuganNoShana Shana]], Lucson is [[WesternAnimation/EdEddNEddy Edd]], and Cullen is [[XMenEvolution ShadowCat]].
* AHouseDivided: Occurs with great speed.
* HumansAreFlawed
* HumongousMecha: The Vital Guarder. The crew laugh at it when it's first discovered, but you can't argue with success...
* ImmuneToBullets: Airs Blue shoots Neya, to no effect
* ImpossiblyCoolClothes: Neya. Just... Neya. [[LampshadeHanging Lampshaded]] when she attends a party.
* InfiniteSupplies: Averted: the limited supplies on the ''Ryvius'' are a major source of tension amongst the crew
* JerkAss: Yuki, most of the time.
* JerkWithAHeartOfGold: Arguably Yuki and Ran.
* JumpingOffTheSlipperySlope: Ikumi
* JustInTime: Subverted. When Liebe Delta is falling into the Geduld, the Zwei activate the engines JustInTime... except that the engines don't actually activate. Oops.
* KidsAreCruel: Numerous examples throughout the series
* KnightTemplar: Ikumi
* LargeHam: Lucson
* LittleMissBadass: Michelle, especially after her imprisonment.
* LivingShip: All of the Vaia Ships
* LoveMakesYouCrazy: Both [[spoiler: Ikumi and Faina's]] [[FaceHeelTurn face heel turns]] are partially driven by this, though the latter was possibly insane to begin with.
* LoveRedeems: Criff Kei and "Charlie"
* LoveTriangle: Aoi likes Kouji and Yuki; Kouji likes Aoi and Faina
* LoadsAndLoadsOfCharacters: Nearly five hundred children are on the ''Ryvius''! In addition, there are about fifty named characters. Naturally, the series focuses on just a few, and organizes many of them into {{Cast Herd}}s.
* TheMutiny: Usually happens once every five episodes
* MyGodWhatHaveIDone: Several instances, but most notably [[spoiler:Ikumi and Faina]] in the penultimate episode
* NonActionGuy: So very much Kouji.
* NoNameGiven: Neya is a major character who is introduced in the first episode, but we don't learn her name until near the end of the series. The other two Vaia ships aren't named either, though in fairness they don't even make it out of drydock by the time the ''Ryvius'' is cornered
* NoodleIncident: The series never properly explains the events that [[spoiler:lead to the ''Ryvius'' being sealed away on the Liebe Delta, or how and why it was responsible for the death of Conrad's daughter]]
** [[spoiler: It's actually mentioned that the Ryvius went wild on its first flight and activated her gravitational field, which ended up killing his daughter.]]
* NorioWakamoto: Conrad
* OneWingedAngel: Grey ''Geshpenst''
* OnlyAFleshWound: Averted when [[spoiler:Kouji]] gets shot in the shoulder: he only survives because he is immediately taken to the medical center and undergoes surgery, and the [[AllThereInTheManual official timeline]] notes that he underwent three months of physical therapy and recuperation afterwards. In the final episode, he says that he can no longer raise his right arm above his shoulder
* ParentalAbandonment: Justified; all of the adults on Liebe Delta die while saving the children
* POVSequel: The manga
* PrisonRape: Implied when Criff and Michelle are imprisoned after the coup in episode 16. While nothing explicit is shown, there are a few lines of suggestive dialogue and it is seen that Michelle is shackled up with her legs spread
* PromotionToParent: Juli, and to some extent, Lucson, after [[spoiler: Pat Campbell's father, who was also one of their teachers, dies trying to save the children aboard the Liebe Delta.]]
* PunnyName: Yuki's lonely ex-girlfriend's name is Elina Rigby, a pun on the Beatles song "Eleanor Rigby." In additon, Stein Heigar seems to be named after a German variety of gin called Steinhager.
* PuttingTheBandBackTogether: The final episode
* RebelliousRebel After he's overthrown Blue abandons his band of delinquents
* RecycledINSPACE: ''Literature/LordOfTheFlies''... [[foldercontrol]]

[[folder: in space ]]
!
* ReplacementGoldfish: [[spoiler: After she is assaulted, Kozue becomes a replacement for Ikumi's beloved older sister.]] Also, [[spoiler:Neya becomes this, unintentionally, for Conrad Viscuess's daughter, Anjay, and when he sees her for the first time he loses his mind]]
* SapientShip: The Vaia Ships are mostly technological, but each has a living [[SpaceWhale Vaia]] at its core. The Vaia are sentient, though only one is a full-fledged SpaceshipGirl.
* SciFiWritersHaveNoSenseOfScale: Averted; there is no FTL and the ''Ryvius'' spends months traveling between planets
* ScholarshipStudent: Juli Bahana
* ShadowDiscretionShot: Used when [[spoiler:Faina]] murders [[spoiler:Sandy and [=McBane=]]]
* SheIsNotMyGirlfriend: Kouji and Aoi
* {{Shotacon}}: Possibly Ran's feelings toward cute little boy Pat.
* ShutUpKiss: [[spoiler:Fiana]] does this to [[spoiler:Koji]] to keep him from [[spoiler: breaking up with her.]] It doesn't work.
* SomeKindOfForceField: The Vaia Ships can control gravity and deflect attacks by bending space.
* SpaceFriction: Averted.
* SpaceIsAnOcean: Literally; the "Geduld Phenomenon" has produced an ocean of plasma in the solar system
* SpaceMadness
* SpaceWhale: The Vaia; more like space-squids, actually
* SpaceshipGirl: Neya
* SpellMyNameWithAnS: Fina/Faina, Neya/Neeya, Criff/Cliff, Kouji/Kouzi, Cullen/Karen
* StrawVulcan: Heigar - which makes it even more creepy when he cracks
* TalkingTheMonsterToDeath: When Neya confronts the Sphix of the Geshpenst, she doesn't attack it, instead pleading for it to see reason even as it pummels her. [[spoiler:She finally succeeds in convincing it to let her speak to Captain Viscuess.]]
* TalkingToHimself: Due to the [[LoadsAndLoadsOfCharacters large cast]], most of the Japanese voice actors took on at least two roles. As a result, there are quite a few scenes where two characters voiced by the same VA interact with each other.
* TeamPet: Rafra, the ferret mascot of the ''Ryvius''
* TechnoBabble: Most of the conversation occurring in the Vital Guarder control room
* TeenageWasteland
* ThematicThemeTune
* ThemeNaming: Blue ''Impulse'', Crimson ''Dicastia'', Grey ''Geshpenst'', Black ''Ryvius''
* TheCaptain: Goes through four of them over the course of the series.
* TheVamp: Michelle Kei
* ThisIsADrill: The Blue ''Impulse'''s Vital Guarder, the Vorticular Drill.
* ThoseTwoGuys: Kikki and Radan, the "Dinosaur Girl" and "Pillow Boy". These two are usually spotted once per episode, sometimes just in the background. They're notable because of their strange attire, a big blue dinosaur costume and a modesty-preserving pillowcase. Interestingly, they only appear together for one scene over the course of their entire series.
* ThrownOutTheAirlock: Threatened a few times, but never actually done.
** There were two people dragged behind the ship on lines (in spacesuits) as a punishment at one point, however.
* TookALevelInBadass: Koji towards the end.
* {{Transsexual}}: [[spoiler:Criff]]. For all intents and purposes she's a woman but at one point Michelle calls her [[spoiler:"big brother."]]
** Confirmed by the [[WordofGod official]] character [[http://www.sunrise-inc.co.jp/ryvius/char/chara12.html profiles]].
* TreacherousAdvisor: [[spoiler:Heigar]] turns down the position of captain, preferring to be an advisor instead. He even goes so far as to engineer a coup to set himself up in this position. Naturally, he dreams of being TheManBehindTheMan
* TronLines: Appear when the ''Ryvius'' first activates in episode 3, and again when the gravity control system powers up in episode 5.
* UtopiaJustifiesTheMeans: [[spoiler:Ikumi and Heigar]]'s philosophy as captain of the ''Ryvius''.
* VillainousBreakdown: Viscuess, after seeing Neya and realizing the ''Ryvius'' really is crewed by children.
* WeaselMascot: Rafra
* WildTeenParty: After the fight at Mars, the crew throws a party to raise morale and release tension. It features, among other things, a contest to program the Vital Guarder to dance. Unfortunately, it gets cut short by the announcement that the crew of the ''Ryvius'' have been declared terrorists. Also, as later shown in a flashback, [[spoiler:one person gets murdered]]. All in all, not a success.
* {{Yandere}}: Actually more than it seems at first sing. Obvious one being weird guy obsessed with certain girl who often is seen stalking her, giving her points he earned or even [[spoiler: assaulting her boyfriend ]]. [[spoiler: Fina]], who was trying to kill her ex-boyfriend and girl he left her for and even [[spoiler: killed her previous ex and her friend who called his name]], is quite less obvious at the begining. [[spoiler: Ikumi]] showed some triats when he has [[spoiler: taken control over entire ship]] to make sure his girlfriend will be safe.
* YoungerThanTheyLook: Blue, Criff, and Lucson qualify.
* YuppieCouple: A girl in a mascot costume (Kikki Kibure) and a boy in a towel (Radan) appear in the background of at least one scene in every episode.
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