[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/POST01_2small.jpg]]

''Who... are you?''

''Who... am I?''

''Ever17'', the second game in the ''Infinity'' series, is a VisualNovel made by the now-sorta-defunct studio KID (while bankrupt, key members of the company split off into three companies: Cyberfront, 5pb., and Regista), and is one of the very few visual novels to be officially translated into English (by a company called Hirameki International, now ''completely'' defunct). It tells the story of six (or is it five? Or seven?) young people who are trapped in an underwater theme park called [=LeMU=] when it unexpectedly springs a leak. They then have 119 hours to find a way to escape before the place implodes and they all die. It's a little like ''The Poseidon Adventure'', if ''The Poseidon Adventure'' were set in the future and had sinister German pharmaceutical companies and some interesting uses of quantum physics. [[{{Dissimile}} So not much like it at all, really.]]

The game has two first-person protagonists, each with their own set of paths. The first is an amnesiac boy known only as the Kid; the second is Takeshi, an ordinary college student. Other major characters include Coco, a fourteen-year-old who looks ten and acts about five; You (it's a nickname, [[WhosOnFirst not a pronoun]], although it's still pronounced "yuu," and not "yo"), a cheerful and friendly employee of [=LeMU=]; Sara, an imaginative girl who is a little obsessed with ninjas; Sora, a calm and mature woman who also works at [=LeMU=]; and Tsugumi, an enigmatic and unfriendly girl who seems to want little to do with anyone else.

The game is also a huge MindScrew and possessed of a plot so twisty that any attempt to explain or describe it more thoroughly would, by necessity, involve spoilers. Speaking of which, beware of falling spoilers in the trope examples section; some tropes are big spoilers just by being listed.

A {{manga}} adaptation (based on the Xbox 360 version of Tsugumi's Route) [[http://www.famitsu.com/comic_clear/se_ever17/ ran from 2011-2012]] ([[http://www.mangareader.net/ever-17 translated chapters]]).

Two {{DramaCD}}'s were made which act as [[PostscriptSeason supplemental stories]] for what occurs after the game's ending. Fan translations of the plays can be found [[http://www.youtube.com/watch?v=a05MYATZERw&list=PLB24224557266598C here]] and [[http://www.youtube.com/watch?v=vhgNKp8N0d8&list=PLBD73D7CF2A812A57 here]].

See also {{Never 7}}, {{Remember 11}} (the other two games in the series),[[TwelveRiven 12Riven]] (a spinoff of sorts that takes place in a similar setting), {{Code18}} (the "official" fourth game in the series, though without any input of the original staff), [[InputOutput [=I/O=]]], [[VisualNovel/RootDoubleBeforeCrimeAfterDays Root Double]] (directed/written by the game's director/main writer), and VisualNovel/NineHoursNinePersonsNineDoors (directed/written by the other main writer), all which have similar themes and setups.

'''Due to the nature of the game, the trope page contains many SPOILERS even after following our usual spoiler policy. If you are the type of reader who is bothered by them, probably you shouldn't look at this page at all before playing the game.'''
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!!Provides examples of:
* AbsurdlyYouthfulMother
** [[spoiler:Yubiseiharukana had herself cloned and gave birth to herself when she about sixteen.]] Given the reasons this occurred in the first place, the baby's grandmother takes care of it. [[spoiler:When her heart condition is healed by Cure and her own mother dies of Tief Blau, she begins raising You'Aki herself before ceasing to age three years later.]]
** By appearance instead of age [[spoiler:Tsugumi could plausibly get away with saying she's ''younger'' than her children given that she's physically 17 even if her age is about 40. Her kids are 16.]]
** In the ending, [[spoiler:Takeshi is only about four years older than his children, which weirds him out to no end.]]
* ActionMom: [[spoiler:Tsugumi]], if "After You've Gone" is to be believed, is pretty decent in a fight.
* TheAgeless: People [[spoiler:infected with the Cure virus]] age five years before [[spoiler:all their cells are replaced with Cure cells]], at which point they stop aging. [[spoiler:Tsugumi is the primary Cure carrier, but eventually Takeshi, You'Haru, Kaburaki and Coco are all infected as well.]]
* AllThereInTheManual: The origins of the Cure Virus, as well as the significance of Tsugumi's friend Julia and Shigezo Morino, is only revealed in {{Never7}}, the first game of the series.
* AmbiguouslyHuman: It’s hinted once or twice that [[spoiler:Hokuto and Blick Winkel might really be the same being in some way and that the latter was once less passive of an existence than it is in the “present.”]] Further, Coco says that [[spoiler:she’s the same kind of being as Blick Winkel.]]
* AmbiguousSituation: Unlike most of the mysteries, it's never made clear what exactly happened in the game of kick the can.
* AmbiguousSyntax: Near the end, Takeshi says there are five people before correcting himself to say there are six. [[spoiler:He means the five members of the group that came down plus Sora, but the rescue squad counted the dead researcher. Meaning that Takeshi and Tsugumi believe Coco was picked up because they count the people as Sora (“dead”) themselves and then You, Coco and the Kid. The rescue operators, however, count it as one dead person from [=LeMU=], Tsugumi and Takeshi left behind and You, the Kid and the researcher picked up. Coco was left behind because she got out of her tube.]]
* ArcNumber: 17 or various multiples of it appear constantly. The conversions from metric to standard were often done incorrectly, presumably to keep the reference to 17.
** A few of the times/dates have 17 in them.
*** The most obvious one, being that the year is 2017 [[spoiler:except when it's really 2034.]]
*** Coco's birthday falls on December 17th, 2002.
*** [[spoiler: Blick Winkel comes into existence on May 1st, 2034 at 3:17 PM.]]
*** At 11:17 AM, the final scene of the story begins.
** Distance are usually measured with multiples of 17 as well
*** 17 meters (56 feet) between each floor of [=LeMU=].
*** The distance Takeshi has to swim to get to Tsugumi’s hamster in a sealed off room is 51 meters.
*** IBF is located 119 meters beneath the surface.
*** At 68 meters [[spoiler:Takeshi decides to enter the airlock and leave the submarine so that it’ll float to the surface and save Tsugumi.]]
*** Every depth checkpoint Pipi goes by [[spoiler:when swimming back to IBF]] is a multiple of 17.
** Whenever possible, things seem to happen in increments of 17.
*** 17 minutes from the first round of investigation finishes until the next meetup is scheduled.
*** 17 minutes in the decompression chamber in the prologue.
*** 17 seconds for the lights to come on after repairing the generator. [[spoiler:In 2017, Tsugumi correctly times this by pressing the switch on Takeshi's count of 17, ending with 0 as the lights come on. In 2034, You/Sara/Kid press the button on Kaburaki's count of 34, and Sara counts 17 as the lights come on.]]
*** You's father disappeared 17 years ago, when she was 1 year old.
*** The park will collapse in 119 hours.
*** 170 seconds after [[spoiler:overriding Sora’s authority security overrides]] [=LeMMIH=] regains power.
** Shows up in various miscellaneous places.
*** Takeshi mentions the Ninneko Song 17 when Coco starts calling him [[InSeriesNickname Takepyon]].
*** 34 rings in Tsugumi's Jewel Chocolate metaphor to Kid. [[spoiler:She's explaining that while she doesn't care about talking to everyone in the group, she wants to see Hokuto and Sara as much as possible since she doesn't feel fit to be their mother and stay in their lives after this. She's collecting the rings, so talking to everyone else is just a bonus.]]
*** The password to the system is a haiku, which is 17 syllables long (5-7-5)
*** The Tief Blau virus is labeled "Tief Blau 2017-Rev.17"
*** Likewise, the Cure virus is known to affect the p53 function on the 17th chromosome.
*** [[spoiler:Due to her condition, Tsugumi stops aging, making her [[TitleDrop forever 17]], at least physically.]]
*** It's even expressed in the game's internal logic: Getting Tsugumi's Good End requires 17 affection points.
*** 34 matches against Pipi in a silly face competition and 34 losses.
*** A type 34 error occurs when trying to hack into Leiblich. Other errors occurred before that, but this is the one that causes [[spoiler:Sora’s contradicting programs to split in two.]]
*** In the story of the 800 year old nun, the beautiful young girl is 17. Her boyfriend dies at age 34.
*** In Kid's perspective, when the characters are arguing about names to call him by, one of the suggestions sounds like "Astatiné Kumegawa". Astatine is the chemical element with atomic number 85.
* ArtisticLicenseBiology
** Tsugumi states that after five years, every cell in the human body has died and been replaced. The neurons in the cerebral cortex are ''never'' replaced.
** Maintaining the complex at six atmospheres of pressure and expecting people to be comfortable? Including children and elders? They transition over 17 minutes, but still.
** Jumping from 12.5 atmospheres to 1 atmosphere is suicide, yet [[spoiler:Takeshi]] manages to do this with no ill effects. Then again, [[spoiler:he was ''told'' this would kill him and it probably would have if he didn't have Cure.]]
* AudienceSurrogate: [[spoiler:Blick Winkel is just an observer with no real attachment to what's going on. He simply watches events unfold as though they were completely unrelated to him. In other words, he's exactly like the reader of a story.]]
* BackFromTheDead: The narration claims that [[spoiler:Takeshi]] is dead when [[spoiler:Blick Winkel / Hokuto]] revives them. [[spoiler:In fact, he should have been dead for quite some time.]] It's speculated briefly onto how this could be possible, but it's brushed aside.
* BelligerentSexualTension: Takeshi spends most of his time fighting with Tsugumi as she tries to resist getting close to him and sticking to her 'woe is me' values. It gets so bad at points that they nearly comes to blows. However, in Coco's route, Coco's presence in one or two scenes keeps them from getting acrimonious and smooths out the later problems in Tsugumi's route, cutting out much of this part of their dynamic.
* BeneficialDisease: [[spoiler:The only real downside to Cure is that it makes you vulnerable to direct sunlight. Some disease. That said, everybody but Tsugumi wants it or doesn't care either way.]]
* BilingualBonus
** In tandem with LostInTranslation and ChekhovsGun, the [[spoiler: [[http://imageshack.us/photo/my-images/86/passwordpx2.jpg/ haiku password is actually alluding to the characters!]] Crazy.]]
** Also, if you happen to know both Japanese and German, you will make the connection between [[spoiler: Sora and the "Himmel" door before it actually comes up in the story. After all, both Sora and Himmel mean Sky.]]
* {{Bishonen}}: [[spoiler:Takeshi and Hokuto. At first you wouldn't think Takeshi is, but that's because it's not really him. The real Takeshi is described as being ridiculously good looking.]] On a different note, it's kind of amusing when even a {{bishonen}} trope involves major spoilers.
* BittersweetEnding: In Tsugumi’s ending, [[spoiler:everyone escapes the park and the lab below.]] However, on the way out, [[spoiler:Takeshi has to eject himself down to the ocean floor to get Tsugumi to safety.]] Further, though you don't learn this until the end of the Cure route, [[spoiler:Coco was unknowingly left behind.]]
* BlindIdiotTranslation: Not as bad as some, but it has its moments.
** A line that's supposed to be like "Of course I know what a hacker is" became "Naturally, I knows the hacker", which became a minor {{meme|ticMutation}} among the fanbase.
** Not to mention all the "find and replace" errors, as in "youth" with "Kid". The result gives us sentences like "Kidere" and "Kidink," instead of "You there" and "You think".
** "Tooling test" was suppose to be "Turing test".
** "All of the sudden"
* BloodFromTheMouth: [[spoiler:Tief Blau causes internal bleeding, puking blood and makes the sinuses bleed, which is invariably fatal if untreated. Even both of the possible treatments only delay it so that the body can try to fight it off, giving it a low success rate.]]
* BookEnds: [[spoiler:Both the prologue and the epilogue start on a boat, narrated by Takeshi.]]
* BreakTheCutie: [[spoiler:After the first incident, Tsugumi become homeless and gave birth to twins. She got a very low paying job that barely let her make ends meet, but was forced to give up her children so they could have normal lives without being pursued by Leiblich.]] The experience hasn't been kind to her, though the damage isn't as bad as it looks at first [[spoiler:and when she gets her kids and Takeshi back she's psychologically and emotionally healthier than she has been at any time since she was about twelve.]]
* BrokenBird: Tsugumi is clearly holding some sort of dark past that makes her very unsocial. [[spoiler:To make a long story short, she was infected with a disease that made her immortal and hard to kill, which caused her to be experimented on for eight years. By the second incident, she's even worse.]]
* CallingTheOldManOut: In You's ending, she gives her mom an earful for [[spoiler: lying to her about her parentage and essentially manufacturing her {{Backstory}} wholesale]].
* CasualDangerDialogue: [[spoiler:Even as he prepares to exit a submarine on the ocean floor and inevitably drown, Takeshi sits and laughs about how Tsugumi must surely know what he’s doing. After all, she’s the one that taught him about buoyancy.]]
* ChekhovsGun: The Archimedes principle comes back up [[spoiler:when Takeshi jettisons himself from the submarine so it'll have enough buoyancy to take Tsugumi to the surface.]] Down in IBF it's mentioned that [[spoiler:the oxygen pods have numerous other functions like cryogenic stasis.]] The life readings being 6 [[spoiler:and still saying 1 at the end when everyone is gone]] is a hint not brought up until the Coco route [[spoiler:where Hokuto points out that the reading should be 5 since Sora has no real body. The flawed readings is probably due to Blick Winkel, though in what way is hard to say.]] There's many more than that, many of which aren't even explained directly.
* ChickMagnet: Takeshi. Both Tsugumi and Sora fall for him short order, the latter of which shouldn't be possible. Yubiseiharukana also confesses to him in the Takeshi bad ending. [[spoiler:His daughter Sara also says that he's definitely her type.]]
* ChekhovMIA: You’s father disappeared seventeen years ago, but she’s still looking for him. [[spoiler:He actually does appear in Coco and Sora’s routes, but neither You nor the reader realize that he was the dying researcher except in the Cure route.]]
* ClassifiedInformation: Security restrictions prevent Sora from volunteering everything she knows, which first comes up in regards to how her AI works and where her personality programs are stored and later when [[spoiler:Tsugumi successfully uncovers the lab beneath [=LeMU=], which Sora knows about but can’t talk about.]]
* CloningBlues: Inverted. [[spoiler:The You in the Kid's routes (Yubisei''aki''kana) is a clone of the You in Takeshi's routes (Yubisei''haru''kana)]]; however, it is [[spoiler:You'hara]], the person who ''was cloned'', who experiences the most angst over it. The clone doesn't seem to care and is much more concerned with other personal issues.
* ClosedCircle: Six or so people all trapped at the bottom of the ocean inside a theme park that only has roughly six days before it collapses due to the water pressure. The exits are sealed, communications are cut and there is no cell phone signal.
* ContinuityNod: Several to Never7, such as [[spoiler:the mentioned characters of Shigezo Morino, the father of Izumi and Kurumi Morino, and Julia, one of the origins of Cure Syndrome.]]
* CoverBlowingSuperpower
** [[spoiler:Tsugumi’s healing factor clues Takeshi in to the fact that she’s a Cure carrier even though he’s never heard of Cure. Earlier, she also knew a door was too hot to touch and would release clouds of steam if opened, but never explains how she knew. She can’t; the only explanation is the truth, which is that she can see heat.]]
** Even more directly, [[spoiler:she doesn’t catch Tief Blau, meaning You’s suspicions that she’s a Cure carrier are confirmed.]]
* CoveredInScars: [[spoiler:Beneath her form concealing clothing, Tsugumi’s skin is crawling with scars. Most are long healed in appearance, but still there.]]
* CPRCleanPrettyReliable: Subverted. When it seems like Sara has drowned token efforts are made to revive her with CPR, but everyone gives up instantly. The Kid keeps at it when everyone tells him it’s useless, but it works out and she vomits a great deal of water.
* CurtainsMatchTheWindow: Coco, the only one with an impossible hair color. Her pink eyes match the pink hair.
* DaddyHadAGoodReasonForAbandoningYou: [[spoiler:Even if Tsugumi could evade Leiblich, she knew that the flight would make it so she could never settle in one place for long. Her children could never know peace or go to school. So she put them up for adoption around the time they were two.]]
* DeathBySex: [[spoiler:Takeshi dies shortly after having sex with Tsugumi. Sort of.]]
* [[spoiler:DeadPersonImpersonation: 2017's Kid is playing Takeshi's role in 2034, although real Takeshi is NotQuiteDead at that time.]]
* DeathSeeker: Tsugumi.
* DebateAndSwitch: Tsugumi and Sora’s argument about [[spoiler:whether or not Sora is hiding potentially life saving information]] is cut short when Coco [[spoiler:begins showing signs of Tief Blau, which overrides Sora’s security restrictions enough that she can start volunteering a certain level of classified information.]]
* DecoyProtagonist: Not fatal for anyone involved, [[spoiler:but the protagonist of both Takeshi and Kid’s route is the same person and neither one is Takeshi or the Kid. Rather, it’s someone watching the world through their eyes: Blick Winkel. The first [=LeMu=] accident in 2017 is replicated in 2034 to make Blick Winkel watch both and confuse them for each other. Set up properly and given enough hints that the two events are separate, he finally wakes up and takes action for himself.]]
* DefrostingIceQueen: Tsugumi. [[spoiler:Then she refrosts again, and then defrosts permanently by the True End.]]
* {{Determinator}}: Takeshi. The game even states [[spoiler:that he's actually probably drowned at this point]], and he still gets up and saves the day. After having enough done to him to kill him in about six different ways without eating in over a day because he ''threw up his last meal after swimming through frigid water'' and without resting at all. Unless you consider [[spoiler:being dead at the bottom of the ocean "rest".]]
** [[spoiler:All of the survivors of the 2017 incident probably count. Organizing a 17-year-long [[DidYouJustScamCthulhu scam]], using your children as pawns, to trick a hyperdimensional being into retconning history takes some ''balls''.]]
* DeusExMachina
** At the end of the Takeshi routes, [[spoiler:Pipi somehow discovers six ampules of the Tief Blau fighting serum.]]
** At the end of Coco route [[spoiler:Takeshi revives himself from the dead on the ocean floor and swims back to IBF. Hokuto briefly speculates on how this could have happened, but then decides he doesn’t care.]]
* DiabolusExMachina: [[spoiler:As Tsugumi and Takeshi escape IBF in the submarine, the battery dies and Takeshi has to eject himself onto the ocean floor to give the sub enough buoyancy to reach the surface.]] After this [[spoiler:and sort of between routes]] this is used as the basis for [[spoiler:the Kid’s routes: Blick Winkel, You and Kaburaki plan a rescue for Takeshi and Coco, who was also left behind. It requires replicating the first disaster.]]
* DisappearedDad: Part of You's back-story.
* DitzyGenius: Sara is perhaps the silliest character, saying the silliest things (both how she says them and what she says, though a lot of it is lost in the English translation), but she is a genius, especially when it comes to computers. [[spoiler:Judging by the flashbacks, her silly personality seems to be due to associating with You.]] Coco is silly too, but she's a TokenMiniMoe so it's expected.
** You seems to be pretty smart too, but most of silliness seems to stem from the fact that she's a GenkiGirl.
* DoesThisRemindYouOfAnything
** You demonstrates a point about perception to the Kid by making him cap a pen with one eye closed. The tip is slippery. It won't go in the hole. It's his first time doing this. See DoesThisRemindYouOfAnything page quote for details.
** People with Cure [[spoiler:pass it along with blood, have enhanced physical abilities, can’t stand bright sunlight, can see in the dark and have superhuman healing abilities. Vampirism?]]
* TheDogBitesBack: [[spoiler:All of Leiblich's KickTheDog moments, such as capturing Tsugumi, Hokuto, Sara, and Dr. Tanaka, developing and accidentally releasing Tief Blau, and various experimentation comes to bite them back in the ass as they all contribute to the Japanese branch's eventual shut down at the end of the game.]]
* TheDogWasTheMastermind
** [[spoiler:The one who came up with the plan is Blick Winkel, which is a character the reader didn't even konw was the true progatonist of the story. His goal is tricking himself and ultimately allowing Hokuto to call out 17 years into the past to his father.]]
** [[spoiler:Its hard to say who is the real mastermind though. Blick Winkel told You'haru the plan only because he knew about the plans from watching You'haru and Kaburaki carry it out in the year 2034. However, You'haru and Kaburaki only carried out the plans because they were told to do so by Blick Winkel. But Blink Winkel told them the plan only because he knew about the plan from watching... See the TemporalParadox here? No one will ever know who originally came up with the plan. Then again, if you studied real life TimeTravel philosophers, you might argue that [[StableTimeLoop the plan did not originate from anywhere, and it never needed to]].]]
* DoubleStandardRapeFemaleOnMale: In Sora's route, Takeshi is lured into a confined space with [[spoiler:Tsugumi]], strangled, pinned to the floor, and then subjected to a ForcefulKiss before being stripped and, well. No one seems to consider this rape, least of all Takeshi, whose only objection to having a private conversation with [[spoiler:Tsugumi]] afterwards is that it would be kinda awkward. To exacerbate matters, [[spoiler:Sora later tries to murder him for "cheating" on her. Instead of pointing out that Tsugumi didn't give him much choice, Takeshi is simply silent and dejected, implying he agrees with her viewpoint]].
** AManIsAlwaysEager: Judging by what little narration we get during the scene in question and Takeshi's blase response afterwards, this appears to be the rationalization.
* DownerEnding: [[spoiler:Both of Takeshi's endings count, as well as all the bad ends. In Tsugumi's ending, Takeshi makes a last minute HeroicSacrifice to allow Tsugumi to escape to the shore while he drowns, as she cries for him not to die. In Sora's ending, not only does SHE not escape, but Takeshi is caught in the collapse and everyone but Tsugumi is slowly dying of Tief Blau without any available treatment. Luckily, the true end is ''not'' a continuation of THIS route.]]
* DyingDeclarationOfLove: [[spoiler:You to Takeshi in the Tsugumi-Sora BadEnd.]]
* EarnYourHappyEnding
* EmergencyTransformation: Unintentional, though known to be a risk. [[spoiler:A vaccine for Tief Blau is created from Tsugumi’s blood, but it also transforms everyone in the first incident into Cure carriers.]]
* TheEndOrIsIt: At the end of a route, the viewpoint moves back to the control room. [[spoiler:There’s one life sign left in [=LeMU=]. And only you are still trapped in the Infinity loop.]]
* EverybodyLives: [[spoiler:The True Ending.]]
* [[spoiler:EveryoneIsRelated: Out of the nine (ten if you count BW) main characters in the game, six are related to at least one other person (seven if you want to get technical).]]
** [[spoiler:To elaborate: Takeshi, Tsugumi, Hokuto and Sara are all a family; You'aki is and You'haru's daughter and clone; Yoichi (You's father) had a hand in the creation of Sora, and thus she also has some relation to You. There's also Coco "adopting" BW as her older brother (and boyfriend).]]
** [[spoiler:On the other hand, in a slight subversion, the game leads the player to believe that there's some relation between Coco and Sara. This is highlighted by the fact that they're the major missing link between Takeshi's routes and Kid's routes, they both appear in the same places, sing the same lullaby, and further promotional and extra art typically shows the two together. Fast-forward to the end and epilogue of the game, and there's neither relation nor any real interaction between the two. The Drama [=CDs=] don't have the two interact much either (justified in After You've Gone, given their circumstances).]]
* {{Expy}}: Most of the characters' personalities and archetypes are similar to characters from {{Never7}}.
** You is based off of Yuka.
** Tsugumi takes traits from Haruka and Saki.
** Sora's personality is very similar to Izumi's.
** Both Sara and Coco have traits from Kurumi.
* FaceDoodling: You and Sara do it to sleeping Takeshi. [[spoiler:Kaburaki, who was one of the survivors of the first incident, eventually had it happening to him in the second. He probably knew it was going to happen.]]
* FindTheCure: May 6th is devoted to this as everyone is infected with Tief Blau. [[spoiler:Ironically, [[IncrediblyLamePun the cure is Cure.]]]]
** [[spoiler:This is also pretty much the plot of both Drama [=CDs=], with Sora in "2035" and Sara in "After You've Gone".]]
* FirstGirlWins: [[spoiler:For both protagonists.]]
** [[spoiler:Although Takeshi (and initially, the player) doesn't realize that it's Tsugumi under the tanuki suit. The next girl would be Coco, who gets paired with Blickwinkel.]]
* FlatWhat: After eating a sandwich with Takeshi's special ingredients (sage, soy sauce, mayonnaise, Tabasco, etc.), Tsugumi claims it tastes like pizza, and Kid's first thought is this.
* {{Foreshadowing}}: When the park begins flooding, in the middle of trying to get Takeshi to evacuate Sora mumbles about something called Tief Blau as if it were the more important problem. There are numerous other hints throughout the game for plot points that may not even come up in the same route.
* [[spoiler:GasChamber]]: The [=LeMU=] incident [[spoiler:(the first time around, that is)]] turns out to be an unplanned version of this.
* GenerationXerox: Deliberately invoked on [[spoiler:Yubisei''aki''kana by her mother, in order to make her as similar to her mother as possible, as part of the BatmanGambit to trick Blickwinkel. As this includes tricking her into thinking she has [[DisappearedDad the same backstory]] as her mother, You is obviously [[CallingTheOldManOut not happy when she finds out]].]]
* GenkiGirl: You, Sara, and Coco, to varying extents.
* GetAHoldOfYourselfMan: Takeshi has the option of using one of these on the Kid. Subverted if he does do it, as he instantly regrets it and is [[WhatTheHellHero looked down upon by the others]].
** However, if you do chose to hit him, Tsugumi's affection points actually go up.
* GiveHimANormalLife: [[spoiler:Tsugumi put her children up for adoption when she realized that if they stayed with her, they could never settle down and go to school or have friends.]]
* GoldenEnding: In the True Ending, not only [[spoiler:does everyone make it out alive]] but [[spoiler:Sora’s memories are intact even though that should be impossible and a lot of the fighting and bitterness was tweaked so that the week everyone spent underwater was less stressful. Leiblich was set up for a fall over the seventeen year period as well and is exposed as soon as everyone is out of IBF.]] The only negative note is that [[spoiler:the seventeen year period between the two events must remain exactly as everyone remembers it, meaning Tsugumi has to give up Hokuto and Sara while living with the belief that Takeshi is dead.]]
* GoMadFromTheRevelation: The Kid has brief moments of mental stress no less than three times when he starts to discover his past. You does this rather comically when she learns part of the Kid's past as well.
* GoldenEnding: [[spoiler: Coco's route]], which [[OmegaEnding requires every good route to be completed to be unlocked]]. [[spoiler:Coco and Takeshi survive, everyone is reunited, and all the answers are revealed.]]
* GoOutWithASmile: Close, but no cigar. [[spoiler:The researcher was trying to smile as he died because of relief that his daughter was okay, but when Takeshi looks at him later he notices that the agony was much and contorted his face.]]
* GratuitousEnglish: The message at the end of every route [[spoiler:except Coco's]].
-->[[spoiler:''This story is not an end yet. Because only you are in the infinity loop.'']]
* GratuitousFrench: "Comprendez-vous?" As anybody who knows French can tell, the d doesn't belong there, but that can be explained as Takeshi just not being fluent.
* GratuitousGerman: LEMMIH's system declares its announcements in German. Also, [[MegaCorp Leiblich]] originated from Germany.
** There's also [[spoiler:Tief Blau (Deep Blue)]] and [[spoiler:Blick Winkel (View/Perspective)]].
** All the music tracks have German titles.
* GoOutWithASmile: Several characters in bad endings.
* [[spoiler:GroundhogDayLoop: "[[GratuitousEnglish This story is not an end yet. Because only you are in the infinity loop.]]"]]
** [[spoiler:Different from most other loops in that, like the game says, it's only Blickwinkel that's experiencing the loop, continually going back and forward in time to 2017 and 2034.]]
* HalfHumanHybrid: [[spoiler:Hokuto and Sara]] are classified as such, though not a true example of this trope.
* HalfIdenticalTwins: {{Averted}}. [[spoiler:Sara and Hokuto]] look very little alike.
** StrongFamilyResemblance: Also {{averted}} -- [[spoiler:Hokuto and Sara]] bear little resemblance to either of their parents.
*** [[spoiler: Hokuto]] looks notably different than his father, though [[spoiler:he is still handsome]]. Also, [[spoiler:Hokuto is much smarter than Takeshi, though less decisive and reckless.]]
* HandBehindHead: In the Kid's route, Takeshi's right hand is ''always'' behind his head except in one cutscene graphic. This is so ubiquitous that [[LetsPlay Let's Player]] little_firebird lampshaded it in their commentary at one point.
* HeadPet: Pipi, sometimes.
* HealingFactor: [[spoiler:Tsugumi.]]
* HeKnowsTooMuch: A lone researcher for Leiblich discoved in 2000 that the company was investigating [[spoiler:the disease Tief Blau]] and planned to develop it into a weapon. To silence him, his family was threatened and he was imprisoned to continue researching until the day he died [[spoiler:on May 6th 2017 in front of his daughter, You.]]
* HeliumSpeech: Used in the prologue by Coco. Combined with the fact that her normal voice is already high-pitched... your eardrums will explode.
** In the remake, Takeshi also has this in the same scene (which makes more sense in hindsight, since all voices, his included, should sound like this without the headphones).
* TheHeroDies: [[spoiler:Takeshi ends up drowning on the seafloor at the end of Tsugumi’s route. OrIsIt? Coco’s route includes this scenario and its continuation, in which he’s revived and makes it back to IBF.]]
* HeroicSacrifice: Without a moment’s hesitation, [[spoiler:Takeshi leaps out the airlock of the submarine so that it will have enough buoyancy to reach the surface and allow Tsugumi to live.]]
* HiddenEyes: A strange version of this: while we never see either Takeshi or the Kid while playing as them (except in some [=CGs=], but even there they are not fully seen), we see exactly what the other looks like while playing from the opposite perspective. [[spoiler:Or so we're lead to believe.]]
** On Tsugumi's face when she [[spoiler:proves her HealingFactor by "killing" her pet hamster that has the same condition]] and then proceeds to [[spoiler:lay out her {{backstory}}]].
* HonoraryUncle: [[spoiler:A variation. Coco begins to call Takeshi and Tsugumi "father" and "mother." By the end, she's calling Blick Winkel "brother."]]
* HopeSpot: See the DiabolusExMachina above.
* HumanPopsicle: [[spoiler:Takeshi and Coco are both cryogenically frozen in order to avoid dying of Tief Blau.]]
* IdiotHero: Takeshi, at times. [[spoiler:Both routes, actually -- Kaburaki does a pretty good job of mimicking it, compared to his original, [[ShrinkingViolet somewhat low-key]] personality.]]
** [[spoiler: Hokuto/Blick Winkel also have their moments. The most notable is at the end of the final path - my friends are cryogenically frozen at the bottom of the ocean, and have been for 17 years already? Well, let me just grab a stone and jump and sink to the bottom of said ocean, instead of just calmly asking someone for a submarine. You"haru" even calls Hokuto/BW out on it.]]
* {{Immortality}}: Shigezo Morino lists three kinds of immortality when talking to [[spoiler:You'haru]]: [[TheAgeless immortality of body]], [[BrainUploading immortality of memory]], and [[OurClonesAreIdentical immortality of genetics]]. In the course of the story it becomes apparent that [[spoiler:Tsugumi represents the first, Sora represents the second, and You represents the third.]]
* IncestSubtext: In the final route, [[spoiler:Coco]] declares [[spoiler:Blick Winkel]] as both her adoptive brother ''and'' her boyfriend. For bonus {{Squick}} points, [[spoiler:Blick Winkel is supposed to represent ''the player'']].
** Mercifully averted in the [[spoiler:Kid/Sara]] route, which has the good sense to immediately dissipate all UnresolvedSexualTension after the LongLostRelative reveal.
* IncurableCoughOfDeath[=/=]BloodFromTheMouth: Symptoms of Tief Blau.
* InformedSpecies: That plump, vacant-eyed mascot is a lemur, not a tanuki.
* IronicEcho: [[spoiler: During his HeroicSacrifice in the Tsugumi route, Takeshi says "Don't touch me" when Tsugumi tries to stop him, which is what she said early on in their relationship when he tries to stop her from leaving in disgust.]]
* LaserGuidedAmnesia: The Kid.
* {{Leitmotif}}: Each of the {{Love Interest}}s have one based on each of the attractions. Tsugumi's is [[http://tindeck.com/listen/rzms the Jellyfish Gondola,]] You's is [[http://tindeck.com/listen/gbld the Lemurian Ruins,]] Sara's is [[http://tindeck.com/listen/vmyz the Cosmic Whale,]] Sora's is [[http://tindeck.com/listen/fpxk the Dolphin Carousel.]] (Sora also has "[[http://tindeck.com/listen/sxen Hologramm]]", which is also the {{Exposition}} track.) Coco's is named after the TeamPet rather than an attraction: [[http://tindeck.com/listen/bsup Weisser Hund,]] or "White Dog".
* LethalChef: There's a reason Takeshi was designated as the one to cook the chicken sandwiches, as one scene proves. You's, Kid's and Coco's sandwiches apparently don't taste bad, but they end up looking bad. Coco's sandwich in particular has a long list of ingredients that probably don't go well together.
* LimitedWardrobe: [[spoiler:While "Takeshi" and Tsugumi's clothing being the same in 2034 is justifiable, You"aki" still wears the same casual clothes that her mother did in 2017, despite 17 years having gone by.]]
** [[spoiler: The [=LeMU=] uniform remaining exactly the same after it being detroyed, rebuilt, and 17 years having passed, is also a stretch.]]
* LiteralMetaphor: Takeshi wants to crawl under a rock and die out of embarrassment when he gets concerned over Tsugumi in public and makes a big stupid fuss when she was obviously okay. So he does the next best thing and rides the elevator back down, wishing he could sink all the way to the ocean floor.
* LongLostRelative: More of a [[spoiler: long-lost family]] in this case.
* LostInTranslation: The scene about [[spoiler: the deaths of Yukie and Yoichi may throw some people off if they're used to the month/day/year calendar system as opposed to the year/month/day system Japan uses.]]
* LoveMakesYouCrazy: Both Sora and Tsugumi get steadily more unstable in Sora's route resulting in [[spoiler:Tsugumi first half killing and then basically raping Takeshi (or at least taking advantage of his confusion) on the gondola, followed by Sora having a minor FreakOut and trying to drown Takeshi with the sprinklers.]]
* LoveTranscendsSpacetime: With the twist that it's ''familial'' love. Through it, [[spoiler:Hokuto]] manages to project their consciousness into the past to [[spoiler:resurrect his father]].
* LoveTriangle: Sora, Takeshi and Tsugumi. Obvious in both of his routes but only really problematic in Sora's [[spoiler:when both have mild breakdowns because of him, with Tsugumi apparently raping Takeshi on the Gondola after asking him to kill her and Sora's reaction of a mental breakdown through jealousy.]] The Kid as well, sort of, but his two choices aren't a BrokenBird with a SugarAndIcePersonality and a TinMan with [[WhatIsThisThingYouCallLove emotional expression issues]].
** Though one of them is [[spoiler:[[BrotherSisterIncest his sister]]]]. Good thing the other one is the "canonical"/True Ending love interest, huh?
*** All the {{UST}} between [[spoiler:Sara]] and the Kid admittedly does disappear instantly after that reveal. But there was more there than in any other route in the game which is mildly disturbing.
* LukeYouAreMyFather: [[spoiler:Hokuto and Sara are actually the son and daughter of Takeshi and Tsugumi, though in a slight subversion, Tsugumi already knew this.]]
* LyricalDissonance: Sara's ImageSong, "Lullaby of Tears", is a poppy, catchy, obnoxiously cute song about how alone and sad she is and how much she misses [[spoiler:her brother]].
* MakingLoveInAllTheWrongPlaces: [[spoiler:Takeshi and Tsugumi]] have sex in [[spoiler:the Jellyfish Gondola]] (an ''amusement park ride'') in Sora and Coco's routes, and in [[spoiler:the IBF sickbay]] in Tsugumi and Coco's routes.
* [[spoiler:MamaBear: Tsugumi, as revealed in [[AudioAdaptation "After You've Gone"]]. Simply put, do ''not'' mess with Hokuto or Sara, or Tsugumi will kick your ass.]]
* MeaningfulEcho
** In the prologue, You's line [[GratuitousEnglish "I am You"]] is said JustForPun. Next time, [[spoiler:it's said to You'haru by You'aki, to signify that they are [[CloningBlues the same person]].]] And in the epilogue, it's a CrowningMomentOfHeartwarming.
** Tsugumi spends the entire story trying to keep her distance from Takeshi and gets angry when he touches her. [[spoiler:In the submarine, he tells her not to touch him as he plans to leave the sub through the airlock. Before he exits, she’s begging him not to leave her.]]
* MegaCorp: Leiblich Pharmaceuticals.
* MementoMacGuffin: Sara's pendant, which contains a hologram of [[spoiler:what she believes is]] her deceased father.
* MentalTimeTravel: The Kid wonders, in You's route, if his Déjà-Vus and amnesia are caused by this.
* MinimalistCast: There are six characters whether you’re in the Takeshi or Kid routes plus one researcher and [[spoiler:Blick Winkel]]. All of them are important with only the dying researcher being even somewhat minor. [[spoiler:Even then, he’s You’s father, a Tief Blau researcher and helped design Sora.]]
* MindScrewdriver: Coco's route manages to clear up virtually every mystery in the game.
* MoonLogicPuzzle: Without a walkthrough, some paths can be difficult to succeed on a first try. Most notably Tsugumi's good end.
* MoralityPet: Chami is this to Tsugumi.
** [[spoiler:MoralityChain: Hokuto and Sara were the only things that kept Tsugumi from becoming a NietzscheWannabe after Takeshi's death.]]
* MorningSickness: [[spoiler:This is how Tsugumi began to realize that she was pregnant. Particularly notable in her case, as she has the Cure virus, meaning she ''can't'' normally get sick, meaning something was clearly up.]]
* MrExposition: Sora generally fullfills this role inside [=LeMU=] [[spoiler:while You"haru" does so at the end of the game for Hokuto/Blickwinkel.]]
* MST3KMantra: Invoked. How did Takeshi [[spoiler:come back from the dead and swim back to IBF?]] Don’t worry about it. Where did Sora [[spoiler:get the robot body?]] Must have been a miracle. How come she [[spoiler:remembers something not stored in her memory?]] Who knows! Just enjoy your happy ending and quit whining about the details.
* MultipleEndings: An interesting subversion occurs here since the "True End" is actually much, much happier than the so-called "Good Ends".
* MumLooksLikeASister: [[spoiler:Youbiseiharukana and her daughter]] look to be no more than five years apart in age [[spoiler:as they very well ought to given the circumstances.]]
* MurderTheHypotenuse: Subverted in [[spoiler:Sora's]] route: she decides to [[spoiler:try to kill Takeshi]] instead.
** WomanScorned
* NoNameGiven: [[spoiler: Tsugumi reveals that Hokuto's and Sara's names are their adopted names. It was never revealed what their true names are.]]
* NietzscheWannabe: Tsugumi, when at her {{wangst}}iest.
* ObfuscatingStupidity: [[spoiler:Kaburaki in the 2034/Kid routes. It is not only ObfuscatingStupidity, but also Obfuscating Personality.]]
* OfficialCouple: The story is built around the Tsugumi/Takeshi romance and all the repercussion of it. Sora’s route simply isn’t possible and the Kid/You romance is largely token, going entirely ignored in the True ending until the very last few lines. [[spoiler:Coco's official love interest it's Blick Winkel.]]
* OlderThanTheyLook: Coco. Takeshi thinks to himself how energetic elementary school kids are these days... then is shocked to find out that Coco is a third-year in middle school.
** [[spoiler:Tsugumi as well. In 2034, all characters except Hokuto, Sara, You'aki and Sora are this. Coco looks 10 then although she's actually 32. See also ReallySevenHundredYearsOld, below.]]
* OneDegreeOfSeparation: [[spoiler:Hokuto and Sara are Tsugumi and Takeshi's children. You'aki is You'haru's clone, and the elder's father helped design Sora and [=LeMu=] with Coco's father. You'aki and Hokuto are hooked up at the end. Coco has some sort of strange tie to Blickwinkel, and it's not entirely clear who or what that is. That leaves only Kaburaki as essentially having nothing to do with the rest.]]
* OneSteveLimit: Subverted with Takeshi, who shares the same first name as [[spoiler:Coco's father, Takeshi Yagami]] (although their names were spelled with different kanji in the Japanese version).
* OnlyKnownByTheirNickname: The Kid, by virtue of his amnesia, and You, whose full first name is ridiculously long [[spoiler:and full of spoilers. It's stated a few times, but deliberately never dwelled on for long. How long it is probably meant that [[ExactlyAsPlanned no one bothered to memorize it]]]].
* OntologicalMystery: You the protagonist are trapped at the bottom of the ocean with six people in total. Figure the rest out for yourself because that’s all that can be stated with any real certainty, especially in the Kid’s routes.
* OverlyLongName: That's why she wants to be called You instead.
* [[spoiler:OurHeroIsDead: Takeshi in both of his routes, of course.]]
* PairTheSpares: [[spoiler:Kaburaki and Sora]] in the Drama [=CDs=], rather awkwardly.
** [[spoiler:It probably would had [[FridgeLogic made a lot more sense]] to pair Kaburaki and You'haru together, considering that they spent 17 years together.]]
* ParentalAbandonment: You's father died in an accident when she was young, which lead her to work for [=LeMU=] to find out what happened to him. [[spoiler:He was blackmailed by Leiblich, who faked his death and forced him to continue working for them, and is found in IBF, where he dies of Tief Blau, but not before talking to You one last time.]]
** [[spoiler:Takeshi and Tsugumi also do this to Hokuto and Sara, though given their [[HeroicSacrifice diffe]][[HumanPopsicle rent]] [[DaddyHadAGoodReasonForAbandoningYou circumstances]], they can hardly be blamed. Not that Hokuto and Sara seem to mind...]]
* ThePlan / BatmanGambit: [[spoiler:The entire storyline is a massive trick, played by the player perspective, on himself.]]
* [[spoiler:PlayerAndProtagonistIntegration: Uses the "you are you" variant. ([[PunnyName And no, that does not mean you are You]].) The true protagonist is the perspective behind Takeshi and the Kid: a fourth dimensional being who can freely move through the timestream and influence certain important events (in other words, a video game player).]]
** [[spoiler:FeaturelessProtagonist]] / [[spoiler:HeroicMime]]: However, these tropes are, rather bizarrely, averted. [[spoiler:Despite supposedly being the player, a concept that should be undefinable, Blick Winkel has not only defined characteristics ([[MostGamersAreMale he's male, for instance]]), but lines of his own, making him another character of the story rather than a true representation of the player.]]
* PlayfulHacker: Sara.
* ThePowerOfLove: [[spoiler:Hokuto]] is able to [[spoiler:[[TimeTravel project his consciousness onto Blick Winkel in the past]]]] and [[spoiler:[[BackFromTheDead resurrect his father]]]] through this.
* ProperlyParanoid: Tsugumi. [[spoiler:Especially in 2034. At least in 2017 it really was an accident.]]
* [[PsychicPowers Psyyyyychic Powers]]: Coco claims to have this (spelled like that too), [[spoiler:though the extent of her powers is vague. Her feats, however, include the ability to "borrow" the perspective of beings from "the other side" (the 4th dimension), enabling her to see the past, present, and future of everyone in [=LeMU=] (which would explain how she knows everything about what Blick Winkel eventually finds out). She's also able to project herself across time, allowing her to speak directly to Hokuto/Blick Winkel, in addition to actually being able to see the latter when they travel across time. [[ArsonMurderAndJaywalking Oh, and she can bend spoons with her mind.]]]]
** [[spoiler:The Drama CD "After You've Gone" takes Coco's telekinetic ability further, as she uses her powers to toss around a man who has restrained Tsugumi, while Coco herself is miles away at school. The feat left her mentally drained, however, and she ended up passing out on her desk as soon as she got back to class, but not before wishing Tsugumi good luck.]]
* PygmalionPlot: Takeshi and Sora, sort of.
** There's actually a scene with an extended bit of exposition specifically about the legend of Pygmalion as a thinly veiled allegory for the relationship between Takeshi and Sora. May be a LampshadeHanging, but probably is not.
* RapunzelHair: Tsugumi's hair extends to around her knees.
* TheRashomon: Takeshi and the Kid both come off as being far more competent and ''interesting'' in their own routes. In Takeshi's routes, the Kid is a semi-stable, emotional kid who follows whatever the group says. In the Kid's routes, Takeshi is a huge ButtMonkey and occasional JerkAss. [[spoiler:But it's a ''huge'' subversion because both of these are correct. 2017 Takeshi is much more confident and has stronger leadership qualities than 2034 Takeshi, who is a grown up version of the Kid from 2017.]]
* ReallySevenHundredYearsOld: [[spoiler:Tsugumi]], who stopped aging at [[spoiler:seventeen]] due to [[spoiler:her genetic code being rewritten by the Cure virus. By the end of the game, Takeshi, You'haru, Kaburaki and Coco have also become this.]]
* RedHerring: Several, but two notable ones only applies to Japanese players/those who played {{Never7}} first. [[spoiler:WordOfGod says that The Kid having the [[Creator/SoichiroHoshi same voice actor as Takeshi]] was meant to deceive players into thinking Kid was a clone of Takeshi (which was pulled off in {{Never7}}), and the Kid's premonitions and mentions of Cure was also meant to fool players into thinking he had Cure Syndrome.]]
* TheRemnant: Non-military example: [[spoiler:In "After You've Gone", Kleinmare, a branch of Leiblich, attempts to continue their activities by luring Tsugumi there, though it backfires in the end.]]
* TheReveal: An early one is that Sora is an artificial intelligence. Her form can’t even be called a hologram given that she’s actually a projection onto someone’s eyes.
* RipVanWinkle: The story of Rip Van Winkle is discussed by Takeshi, You, and Coco at one point. This is, obviously, {{Foreshadowing}}.
** The event it foreshadows is [[spoiler:Takeshi and Coco sleeping for 17 years in cryo-sleep, although the former counts more than the latter (as Coco had access to Blick Winkel's viewpoint)]].
* RobotDog: You inherited one from a friend. It’s quite old, so she’s surprised it still works. [[spoiler:Not just any robot dog: It’s actually Pipi.]]
* RobotGirl: Sora, although more of a [[ProjectedMan Holographic AI Girl]]. [[spoiler:In the True End, she does get a robot body.]]
* ScaleOfScientificSins: [[spoiler:You'hara]] considers their use of [[spoiler:[[CreatingLife cloning]] as a means to achieve genetic {{Immortality}}]] to be this, explicitly calling it a "sin". However, they never receive comeuppance for it and seem to come to terms with it in the ending, so this may be [[ValuesDissonance their own personal hangup]] rather than an AuthorTract.
* SelfMutilationDemonstration: In spirit, at least. Since Takeshi won’t believe in [[spoiler:her own healing ability despite having healed from a grave wound overnight that left nothing but a thin scar, Tsugumi instead crushes Chami in her hands and then shows that he’s still fine. Like her, he has Cure. Somehow.]]
* SetRightWhatOnceWentWrong: [[spoiler:The entire plot is the attempt of a fourth dimensional being to trick itself into tricking itself so that the 2017 accident can occur without the deaths of Takeshi and Coco.]]
* ShownTheirWork: The authors clearly knew their way around theoretical physics, as well as just what kind of circumstances would be required to operate an underwater theme park.
* ShoutOut: All of the names that the Kid can choose for himself are the names of protagonists from other KID visual novels, except for Prince (which is a ShoutOut to the KID game ''VideoGame/BananaPrince''):
** Tomoya Mikami -- ''VisualNovel/MemoriesOff''. Makoto Ishihara -- ''VisualNovel/{{Never7}}''. Naoto Miyama (mistranslated as Naoto Fukuyama) -- ''[[VisualNovel/YumeNoTsubasa Yume no Tsubasa]]''. Shiina Hasegawa -- ''VisualNovel/{{Tentama}}''. Motoki Homura (mistranslated as Motoki Inamura) -- ''[[VisualNovel/CloseToInoriNoOka Close to ~inori no oka~]]''. Ken Inami -- ''VisualNovel/MemoriesOff 2nd''. Kyosuke Watarase -- ''VisualNovel/MyMerryMay''.
** In one of the paths, there'll be a party. You will perform an impression of a [[IndianaJones strange old archaeologist, who had a talent for cracking a whip]].
** There's a few other {{Shout Out}}s to {{Never7}}, including:
*** The scene where Coco is introduced as a third-year in middle school is close to Kurumi introducing herself as a third-year in high school. Both of them are OlderThanTheyLook, and both are quite childish.
*** The same argument over the name of the card game. Coco/Izumi call it "Super Memory," You/Kurumi call it "Mental Guts", Tsugumi/Makoto call it "Concentration", and Takeshi/Makoto settle for "Concenmemory".
*** [[spoiler:"A girl who doesn't have an older brother can call someone who's like a brother to her, 'Onii-chan'" -- a "made-up" rule stated by Coco near the end of the game, but one that Kurumi also abides to.]]
*** A scene with a sleeping male character (who is the only other guy in the group apart from the current protagonist), who mutters things in his sleep that change/randomize depending on how many routes have been cleared beforehand.
*** The entire epilogue, where [[spoiler:everyone is going home on a boat. Not necessarily BookEnds in Never7, but the idea seemed to be pulled from there.]]
* SignificantAnagram: LEMMIH spelled backwards is HIMMEL.
* SlidingScaleOfIdealismVersusCynicism: The fundamental point of disconnect between Tsugumi. As a defense mechanism, Tsugumi holds the position that life is brutal, unpleasant and undesirable because of the suffering that people go through. Takeshi believes that even though you may be suffering now, life is still beautiful. Further, if you hold out, things may very well improve. [[spoiler:This is what Tsugumi likes about him: She doesn’t want to think of the world as a terrible place, she wants to have some optimism.]]
* SnowMeansLove: Not in the traditional sense, but when Tsugumi is narrating [[spoiler:the birth of her twins in midwinter]] the entire background is black with only falling snow to accompany it. Familial love.
* SoapOperaDisease: [[spoiler:You'haru turns out to be suffering from a heart ailment that will take her life shortly, which is why she had herself cloned.]]
* SomeoneToRememberHimBy: [[spoiler:Tsugumi is impregnated by Takeshi in both of Takeshi’s routes as well as the slightly altered version present in the Coco route. When he seemingly dies, she’s bitter at the world until she realizes that she’s pregnant.]]
* SpaceWhale: The "Cosmic Whale Room" has an animatronic one.
* SpitTake: Takeshi in Kid's routes, when he hears what You's high school club did.
* StableTimeLoop
* StepfordSmiler: [[spoiler:You, Coco, and Sara, though the last is a slight subversion as her GenkiGirl personality is actually genuine due to being free from Leiblich.]]
** [[spoiler:Coco is really only like this in a few scenes in her route, and Hokuto can see through it. Most of the time, she's genki to the extreme, and when she does get sad or depressed, she shows it.]]
* SugarAndIcePersonality: Tsugumi. When she's not being visibly disgusted with everyone (especially Takeshi), she'll prefer a cold emotional distance.
* SupernaturallyYoungParent: [[spoiler:In the True Ending, Takeshi is 20 except on paper since he's been in stasis for 17 years. His children were conceived only a day or two before he went into stasis, meaning he's not even five years older than they are.]]
* SyntheticPlague: [[spoiler:While Tief Blau is a modification of an existing organism, it’s been molded into a disease with almost universal mortality. Fortunately, it’s so quick and deadly that during the break out at the end of Tsugumi and Sora’s routes the casualties were limited in scope and area. Further outbreaks are also often limited to only a single person because they don't have time to pass it on. There were still tens of thousands of casualties, however.]] In the epilogue [[spoiler:You'Haru has given the go ahead sign for a long planned whistle blower operation, resulting in massive public scrutiny on Leiblich, which is forced to close down.]]
* TeamPet: Pipi the dog and Chami the hamster.
* TeenPregnancy: Played with. [[spoiler:You'Haru had a child when she was about 16, but it was a clone of herself implanted by a character mentioned in Never7.]]
* TemporalParadox: A ''very'' unpleasant one; [[spoiler:when Blick Winkel realizes this while seeing the happy future caused by SetRightWhatOnceWentWrong, Takeshi ''[[{{Gorn}} slowly decomposes before his eyes'']]]]. It's quite graphic.
* [[spoiler:TheAllConcealingI: Neither Takeshi nor the Kid's faces are shown when you play as them, not even in [=CGs=], but they are seen in the other's route. This is to hide the fact that [[TomatoInTheMirror the Kid is not the same Kid we see in Takeshi's route, and vice-versa]].]]
** [[spoiler:At the end of their routes, the game does slip up and show that their hair color is not as the player expects them to be, but most of the time, the attention is drawn to something else. See the TearJerker that is Tsugumi-Sora's bad end.]]
** [[spoiler:Averted on the one of the covers for the game, which blatantly shows Takeshi with bluish black hair.]]
* ThirdPersonPerson: Coco.
* TinMan: Sora.
* TogetherInDeath: [[spoiler:Sora's ending.]]
* TomatoInTheMirror: [[spoiler:When Hokuto/Blick Winkel discovers he's not the Kid from 2017.]]
* TrickedOutTime: [[spoiler:To resolve the 2017 incident with everyone living through it, it can neither be prevented nor can the fundamental details be changed. To do that would leave no reason for Blick Winkel to travel back. He wouldn’t even have been awakened. Instead, Takeshi is awoken on the seafloor, rescues Coco and puts her into a pod and then puts the both of them into suspended animation for seventeen years.]]
* TrueCompanions: Takeshi gives a lecture to Tsugumi about the meaning of "nakama" (which is translated as "friend"), though she rejects the idea. [[spoiler:By the Epilogue, the 2017 and 2034 groups have essentially become one large group of TrueCompanions.]]
* {{Tsundere}}: Tsugumi by the end of her route, and the epilogue.
* UpdatedRerelease: The "Premium Edition", which contained about 15 new [=CGs=] (most of them related to Coco's Route), new sprites, and different bonus pictures. The [=CGs=] and sprites were also included in all PC versions of the game.
* {{Utsuge}}
* ValleyGirl: PlayedForLaughs -- In Sora's Route, Sora asks Takeshi to teach her how to act more human-like. The ultimate result is that she begins speaking like the trope. However, after it ends up making Coco cry, Takeshi and Sora agree she should just talk like she normally does.
* VerbalTic: Sara, being a ninja fangirl, sometimes refers to herself as "[[JapanesePronouns sessha]]" and ends sentences with the archaic "de gozaru". The translation renders this as over-the-top flowery AntiquatedLinguistics.
* WalkingSpoiler: The Character Sheet has a separate folder for characters who fall under this trope.
* WeakenedByTheLight: [[spoiler:Cure carriers have poor ability to cope with sun and no defenses against cancer, so they have to avoid direct sunlight. However, not all Cure carriers get all the symptoms, so while Tsugumi is the only one shown to have all the positive aspects like longevity, healing and infravision, she’s also the only one who has to wear a suit to completely hide her body.]]
* WhatHappenedToTheMouse: Two mysteries are never solved: [[spoiler:what caused the 2017 disaster and tief blau outbreak, and what was the cause of 2017 Kid's amnesia]]? The Xbox 360 remake answers the second mystery but not the first.
* WhatIfTheBabyIsLikeMe: [[spoiler:Tsugumi is worried that her children might be Cure species, and won't be able to grow up like normal children. Luckily, her children end up as [[HalfHumanHybrid Sapiens/Cure hybrids]] who grow up normally, and are immune to the effects of the Cure virus.]]
* WhatIsThisThingYouCallLove: Sora's route revolves around this.
* WhatYearIsThis: The Kid asks Takeshi this since he can't remember a thing. Takeshi seems to not know either and has to rely on his admission ticket. [[spoiler:Of course, when you're playing as the Kid, "Takeshi" (also known as the "original" Kid) lies to you, which is just the beginning of setting up the enormous MindScrew that is Ever17.]]
* WhoWantsToLiveForever: [[spoiler:Tsugumi wangsts about being immortal, but Takeshi thinks that life is its own reward, even if he gets momentarily rattled by her grief. This is the fundamental root of the conflict between them: To her, life has been nothing but suffering. To Takeshi, it doesn’t matter if you suffer so long as you’re alive.]]
* [[WritersCannotDoMath Translators Cannot Do Math]]: There are 17 meters between each level, but America doesn't really use the metric system. So they converted it to feet. The only problem is that there are about 3.3 feet in a meter and not just three. So not only do you lose another reference to 17, the conversions aren't done properly in some places.
* YamatoNadeshiko: Sora, {{Justified|Trope}} as that's her programming as a park employee AI. [[spoiler:However, it's subverted at one point in her route after she sees Takeshi and Tsugumi having sex, where she briefly goes {{Yandere}} out of confusion.]]
* YouAlreadyChangedThePast: Found out [[TemporalParadox the hard way]].
* YouGottaHaveBlueHair: Coco's is pink. Everyone else's is a reasonable color.
* YourDaysAreNumbered
** It’s at least possible for every human to escape from park before it collapses, but Sora is stored inside the computer. She can’t escape and while there are copies of her in the primary computer on the mainland, they aren’t her.
** Four years ago [[spoiler:from the standpoint of 2017, You]] was diagnosed with [[spoiler:a non genetic heart condition and was told she’d be lucky to make it to graduation.]] That said [[spoiler:while Tief Blau was a disaster for the world that claimed tens of thousands of lives, it led to her contracting Cure, which repaired her heart.]]
* YoungerThanTheyLook: Sora, who is 6. Justified in that she's an AI, and her age is given as eternally 24.
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!! The Xbox 360 remake provides examples of:

* [[spoiler:AcheyScars: In the remake, Hokuto has a knife scar across his arm that Sara gave him during their {{Tykebomb}} training that Leiblich forced them through. Whenever he has a dream about his past or tries to remember it, the scar aches.]]
* BigBrotherMentor: Takeshi to the Kid. This was slightly present in the original, but really taken to its fullest in the remake.
* BittersweetEnding: The remake changes [[spoiler:Sora's Route]] from a DownerEnding to this. [[spoiler: While Takeshi and Sora still die, instead of futilely copy Sora onto a terabyte disk that won't make it out of [=LeMU=], Takeshi instead uploads a program that makes a copy of Sora and wirelessly sends it to the successor LEMMIH computer, meaning that she'll still live on through that computer.]]
* ChekhovsGun: [[spoiler:A "Lemurian Tablet" is in the remake, a mysterious tablet supposedly from Lemuria that has strange hieroglyphics on it that no one can read, and has Coco's drawing on it. As it turns out, the Lemurian Tablet was created by Blick Winkel (via possession of another person from long ago), and the mysterious hieroglyphics have the details of Third Eye Project written on it.]]
* ChekhovsGunman: [[spoiler:Pipi, who is this version actually contains a quantum computer created by Yoichi Tanaka. When Sora's data is backed up, it backs up into Pipi, and Sora essentially becomes Pipi for the next 11 years until her android body is developed.]]
* EnhancedRemake: Contains an additional route [[spoiler:(the Blick Winkel Route, an epilogue of sorts that shows some of the events between 2017 and 2034)]], rewritten story (the main plot and major events are mostly the same, but a lot of the events in-between are completely different), complete background graphics, additional [=CGs=], character conversion from 2D to 3D, remixed soundtrack, and re-recorded voices.
* FixFic: [[spoiler:Essentially the second half of the Blick Winkel Route, where Blick Winkel uses his powers to fix the Bad Endings and give every route a happy ending.]]
* [[spoiler:LaserGuidedAmnesia: Kaburaki's amnesia, which was caused by an incident in 2029 where an experiment on space-time oscillation device designed to create an artificial black hole went wrong. Kaburaki had to manually shut it off, but the effects of the black hole briefly sent his 2029 self's consciousness to his 2017 self. The overload of memories caused 2017's Kaburaki's amnesia, but left him with a few fragments of 2029 Kaburaki's memories, which was the source of his "premonitions".]]
* [[spoiler:MemoryGambit: In this version, Hokuto was also one of the members of the Third Eye Project, due to his compatibility with Blick Winkel, and therefore had known he was going to lose his memory ahead of time.]]
* [[spoiler:PsychicPowers: In addition to Coco's from the original, it's revealed at the end of her route that Kaburaki is a low-level psychic. Furthermore, Professor Yagami in this version was actually researching these powers and their connection to the Third Eye.]]
* SchrodingersCast: [[spoiler:In the original, Professor Yagami's fate was never revealed, leaving it unknown what happened to him after Tief Blau broke out. Here, he managed to escape from [=LeMU=], made a miraculous recovery from TB, and became a major supporter of the Third Eye Project.]]
* StableTimeLoop: [[spoiler:A variation from the original- in the remake, Blick Winkel can only talk to other people when he's in possession of Takeshi or Hokuto (or if they have the Third Perspective, like the former two and Coco), and can't talk to anyone else. As a result, he can't directly tell You"haru" the Third Eye Project. As a result, he goes back in time and creates the "Lemurian Tablet", writing down all the details of the Third Eye Project.]]
* StepfordSmiler: [[spoiler:Sara, who was a subversion in the original, has it played straight in this version, though she still has moments of genuine happiness.]]
* [[spoiler:{{Tykebomb}}: In this version, Hokuto and Sara were trained to be agents of Leiblich, teaching them how to use weapons and various other things. However, Hokuto was removed from training when he was 11 after he protected Sara from a bomb she accidentally set off, injuring him badly. This allowed You"haru" to use her influence to get him out of there.]]
* UnrequitedLoveSwitcheroo: In a manner of speaking. Takeshi spends most of the story trying to get Tsugumi to open up and after rescuing Chami she finally does, but now he’s respecting her personal space when she’s finally willing to talk a little, much to her irritation. Before much longer, he’s stopped seeking out her company and she comes to talk to him instead.
* VocalEvolution: [[spoiler:In the original game, Creator/SoichiroHoshi had two distinct voices: his "Takeshi" voice (which he uses for Takeshi and adult Kaburaki) and his "Kid" voice (which he uses for kid Kaburaki and Hokuto). By the Xbox 360 remake, he's developed a distinct voice for all four (his adult Kaburaki and Hokuto voices are similar to their original types, but slightly different).]]


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