[[quoteright:277:http://static.tvtropes.org/pmwiki/pub/images/DearS.jpg]]
[[caption-width-right:277:There are aliens among us, and they're ''hot''.]]

[[NextSundayAD In the not-too-distant future]], humanity is minding its own business when a huge alien spacecraft suddenly makes a crash-landing in Tokyo Bay. Its passengers look [[HumanAliens very much like humans]], with a few key differences: The vast majority of them are [[CuteMonsterGirl incredibly beautiful young females]], and they all wear [[SlaveCollar large, distinctive collars]] around their necks. While they appear to "come in peace", their nature and origins are a mystery they don't seem eager to reveal. Lacking the knowledge to repair their ship, they decide to integrate into human society through a government-funded "home stay" program, picking up human languages and customs with surprising speed. Their eternally friendly, helpful, and accommodating nature earns them the nickname "[=DearS=]".

One year later, OrdinaryHighSchoolStudent Takeya Ikuhara is still suspicious of the alien "invaders", though most of his friends are infatuated with them. Walking home one afternoon, Takeya notices a girl huddled under a blanket at the side of the road, on the verge of collapsing from hunger. Taking pity on her, he carries the strange girl back to his apartment, only to discover that she is one of the very aliens he so distrusts. But "Ren", as Takeya nicknames her, is no ordinary [=DearS=]: She seems completely oblivious to even the most fundamental human customs (e.g. [[InnocentFanserviceGirl wearing clothes]]), and she eagerly explains to anyone who will listen that Takeya is now her "master", and she is his "slave".

As more and more characters (both human and alien) take an interest in Ren and her "master", it looks increasingly unlikely that Takeya will ever get his life back to normal. It's up to him to figure out just why Ren is so different from the other [=DearS=], and make a tough decision on whether he even wants Ren in his life at all.

So in short, ''Series/AlienNation'' as a romance manga with Newcomers wanting to be slaves.

Based on the manga by Peach Pit and adapted into an anime, licensed by Creator/{{Geneon}} and relicensed by Creator/DiscotekMedia.
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!!Tropes in ''[=DearS=]'' include:

* AboveTheInfluence -- Ren explicitly offers to have sex with Takeya when he starts to feel turned on by her presence. Yet, because she's an alien and (primarily) because he feels that Ren isn't really doing it out of love, he politely (for him, anyway) declines.
* AbuseIsOkayWhenItsFemaleOnMale -- Takeya's sister, Natsuki cannot stand it when she finds out that Ren and Takeya are living together. While she's implying using physical force or wrestling moves on Ren, she actually does it to Takeya instead. Apparently Natsuki learned it from their mother, who also punishes her similarly from time to time.
* AdaptationDistillation -- A TwelveEpisodeAnime wasn't enough for the full story of the manga, but the romantic comedy elements worked just fine.
* AnAesop: The story has a really unsubtle moral that boils down to "love only happens if you aren't trying so hard for it to happen."
* AnimeHair -- Ren and Miu, Miu's being especially noticeable in her bath scenes. That much hair should not be possible. Could be justified in that they're not human and they're genetically created for beauty. Something in their genes could be for 'impossible hair'.
* AnnoyingYoungerSibling -- Natsuki.
* AttentionDeficitOohShiny -- Nia, nya.
** China shows this a bit at times, but ''not'' quite to Nia's level.
* BabiesEverAfter: In the final chapter we learn that not only does this occur, it was always supposed to be that way because [[spoiler:Ren is [[TheChosenOne The Gate]], and was the only Dears from the ship with the ability to reproduce]].
* BaitAndSwitchCredits -- Ren and Miu kiss in the OP. In the series, not so much.
* BarbieDollAnatomy -- Just ''look'' at Ren and Mitsuka. Really. Look.
* BigEater -- All the [=DearS=].
* BlankSlate -- Ren, who learns (slowly) about the world as the series goes on.
** Happens twice in the manga.
* BunnyEarsLawyer -- Mitsuka-sensei, to the point where the students question how she got to be a teacher in the first place.
* ButtMonkey -- Takeya.
* TheCasanova -- The minor character Hirofuni recurs often enough to provide a contrast to Takeya, always with a girl who can't resist having 'coffee' with him. Though he attempts to seduce Ren, and later gracefully concedes, he winds up the [[StalkerWithACrush focus of Xaki's attention]].
* CatGirl -- Nia, who [[VerbalTic ends every sentence with "-ni"]].
** With her big paws, tail and mane she looks more like a ''[[AmbiguousSpecies lion]]'' girl. Despite the fact that [[AnimalGenderBender only male lions have manes.]]
* CatSmile -- The [=DearS=] girls seem to display them from time to time, although Nia seems to have a permanent one.
* TheChewToy -- Takeya again.
* ClingyJealousGirl -- Miu, who seems a little bit jealous that Ren already has a master despite being "defective". Takeya's sister Natsuki also doesn't like it when she first finds out about his "relationship" with Ren.
* ClosetSublet -- Ren takes to staying in Takeya's closet, since sleeping there was, technically, the first order given to her. She even has a bed set up there.
** Any other [=DearS=] that temporarily stays with Takeya usually sleeps in the bottom half under Ren.
* CloudCuckooLander -- Nia. She claims to be hunting for Ren, but then almost immediately forgets about it for various reasons.
* ComicSutra: In episode 9.5, Miu heads over to Takeya's house to check in on Ren, only to find her "Watching porn to study Takeya's preferences in the earthling ways of sex."
-->'''Ren:''' ''Holy cow, that looks pretty complicated...''
-->'''Miu:''' '''''IS SHE SPINNING!?'''''
* CompressedAdaptation -- The anime more or less takes a chainsaw to the sci-fi plot and turns it into a straight romantic comedy.
* ContinuityCameo -- China pops up in the last episode of the anime to say hi on a TV screen.
* CursedWithAwesome -- Seriously, Takeya, what is ''wrong'' with you?
* CypherLanguage: [=DearS=] language (a substitution cypher for hiragana) is used for [[http://rickadams.org/thumbnails/dears1.jpg episode titles]] and at various other times. Example: Ren's [[http://rickadams.org/thumbnails/renrenren.jpg serial number]] in episode 1.
* DancingTheme -- The ED. All the main girls in the cast are doing very simple dancing, but it qualifies since that's ALL that they're doing.
* {{Deconstruction}}: Two of them. One is of the concept of a slave race, which [[spoiler:the [=DearS=] set themselves up to be, and the reasons why are rather disturbing.]] The other, somewhat less serious one is Mitsuka-sensei, a deconstruction of the HotForTeacher trope. She is, objectively speaking, good looking, but in both the anime and manga she takes hitting on her own students so far ''even the hormone addled males'' find her to be FetishRetardant, and it's heavily implied that she might actually get somewhere if she wasn't trying so hard.
* DepravedBisexual -- Mitsuka-sensei.
* DesignatedLoveInterest -- Ren, though most of the time Takeya considers her more of an annoyance than a love interest [[{{Jerkass}} and has no problem stating as much when asked]].
* DrivesLikeCrazy -- Mitsuka-sensei in chapter 23.
* DudeShesLikeInAComa -- The ambiguous wording of some of Ren's statements in episodes 5 and 6 can be taken to imply that she tried to boink Takeya while they were [[SleepCute sleeping together]].
* {{Ecchi}}
** The HotSpringsEpisode in particular ''really'' skirts the {{Hentai}} line.
* EvenTheGirlsWantHer -- Ren. Subtext plus SkinshipGrope with Neneko, subtext plus opening-credits kiss with Miu, and explicitly the case with Mitsuka-sensei. ("I don't care if you're a girl, that body was made for love!") Also, she gets several fangirls at school who constantly urge her to leave Takeya and hang out with them instead.
* {{Expy}} -- Mitsuka-sensei acts a lot like Shikijo-sensei from ''{{Mahoromatic}}'', even sharing the same [[WendeeLee English voice actress]].
** Miu sure looks a lot like [[Anime/FullMoonOSagashite Meroko]], minus the green eyes - The hair is spot on!
* {{Fanservice}} -- Aplenty.
* FirstKiss -- Ren uses one on Takeya to confirm their master-slave relationship in the first episode.
* ForeignLanguageTitle
* {{Gainaxing}}
* GeckoEnding
* GenkiGirl -- Natsuki.
* GratuitousEnglish -- The opening song in the anime.
* HadakaApron
* HappinessInSlavery -- Unbeknownst to humanity at large, the [=DearS=] are a genetically engineered "[[PlanetOfHats slave race]]". By design, they are uncomfortable with making their own decisions, and derive happiness solely from satisfying the needs of their masters, a task to which they are selflessly dedicated. They hide their true nature to avoid angering their new human "masters", since they have determined that most humans abhor the concept of slavery.
* HaremNanny -- Neneko. Unlike most [[HaremNanny Harem Nannies]], however, she is very much a potential love interest, and while she's the most mature of the cast, she's not above a bit of {{Tsundere}} behavior from time to time.
* HealingHands -- As Miu explains, it's more a transferring of life force.
* HomoeroticSubtext -- Just look at the picture. In-canon, Ren and Miu just get teasing subtext, but the [[BaitAndSwitchCredits opening credits]] feature a noncanonical {{fanservice}} shot where they ''kiss''.
* HotForStudent -- Subverted: Mitsuka-sensei acts in defiance of school rules and decency in her constant attempts to come on to her students, but they find her annoying and embarrassing, frequently wondering aloud how on earth she manages to keep her job.
* HotSpringsEpisode -- The unaired "Episode 9.5", included in the DVD release.
* HumanAliens -- The [=DearS=], most of whom could be mistaken for unusually good-looking humans were it not for their collars. In a flashback provided by Miu, the unnamed alien race that created the [=DearS=] also appears to be outwardly identical to humans.
* IdiosyncraticEpisodeNaming
* IKissYourHand -- Ren does it to Takeya when she's being [[{{Moe}} cute]].
* IneffectualSympatheticVillain: Nia. She's supposed to capture Ren, but OnceAnEpisode she goes out and [[AttentionDeficitOohShiny completely forgets just what the hell she's doing,]] often to chase after a DeliciousDistraction.
* InnocentCohabitation -- Once Ren figures out that Takeya isn't into her, their relationship becomes this. {{Lampshaded}} when Neneko suggests that Takeya clarify the situation, and then realizes that [[CrowningMomentOfFunny he has absolutely no idea what she's talking about]].
* InnocentFanserviceGirl -- Ren, though she eventually comes to understand the concept of "dressing appropriately".
* {{Irony}}: The one person who originally wants nothing to do with the [=DearS=][[spoiler:, [[UnwantedHarem obtains a harem full of them]] when leaving for space at the end of the manga.]]
* JerkWithAHeartOfGold -- Takeya.
* {{Landlady}} -- Neneko Izumi
* LatexSpaceSuit -- All [=DearS=] have one, and they leave little to the imagination ([[MrFanservice this includes the male "Biters"]]).
** Also an example of ClothesMakeTheSuperman: The suits contain a powerful "gravity manipulation device", allowing for effortless {{Telekinesis}} and {{Flight}} (though these are only used when absolutely necessary). Presumably this is also the source of the [=DearS=]' [[HealingHands healing powers]]. When not needed, the suits turn into PureEnergy and are stored inside the [=DearS=]' collars.
*** While the clothes do turn into energy for storage (depending on the anime or the manga, the clothes either swap completely or it only affects the standard latex suit, requiring a change of normal clothes anyway), the [[PowerCrystal forehead crystal]] are responsible for controlling the [=DearS=]' gravity manipulation, as well as other abilities not further mentioned (although it is active during the time that Ren learns Japanese). Wearing the latex outfit is not required.
* LeaningOnTheFourthWall -- Mostly the show behaves normally, ignoring the viewer. But the over-the-top FanService HotSpringsEpisode skirts the edge when they discuss who else to bring.
-->'''Miu:''' 'Since it is a bath house, a woman would be better than a man.'
-->'''Ren:''' 'A woman would be better?'
-->'''Miu:''' 'Of course,' ''turns to look directly at the viewer.''
-->'''Ren:''' 'Is that so?' ''moves in front, also looking at the viewer.''
-->'''Takeya, [[ArtShift Art Shifted]]:''' 'Um, who are you talking to?'
%% (Liberties take on switching between the DVD subtitles and dubbing.)
* LethalChef -- Ren's cooking was so bad that any humans who ate it cried ''tears of blood''. Apparently, however, other [=DearS=] (or, at the very least, Miu) find it to be heavenly. Ren's cooking does improve... sort of.
* LikesOlderWomen -- Takeya, or at least he's mercilessly teased about being one after Ren blurts out the contents of his PornStash to his classroom.
* LoveableSexManiac - Mitsuka-sensei
* MagicalGirlfriend -- Ren.
* ManChild -- Let's face it, Takeya couldn't even ''survive'' without Neneko and Ren's help, and not just because the rent's good. One might say that the whole series displays him being dragged kicking and screaming into adulthood.
* {{Meganekko}} -- Neneko.
* MomentKiller -- God''damn'', but Natsuki has some sense of timing.
* MyHeroZero -- In the [=DearS=]' language, "Ren" means "zero" or "nothing". It's the first digit of Ren's [[YouAreNumberSix identification number]], because that's how the [=DearS=] indicate "defective units".
* MySensorsIndicateYouWantToTapThat -- [=DearS=] can sense emotion from their masters, including any desires they might have.
* NewTransferStudent -- Ren and Miu.
* NoblewomansLaugh -- Miu (anime).
* TheOjou -- Miu, again. Refined speech patterns? Check. Frilly and girlishly princess-like decor and clothing? Check. Although when you take [[DarkAndTroubledPast certain factors]] into account, you realize that she's [[BrokenBird compensating for something]]...
* {{Otaku}} -- Neneko has shades of this, as shown in Ep. 9.
* OverlyLongName -- Ren's full name is Ren Ren Ren Nagusaran Rensia Rurunnren Nakora, and Miu's full name is Sia Nostal Ren Naguregyug Thanast Useim Ruki Miu. {{Justified|Trope}} due to YouAreNumberSix (see below).
* PetTheDog: Mitsuka, at one point in the manga, takes a brief break from her usual pervy ways to fashion a swimsuit (a decent one, at that) for the youngest [=DearS=] so she can have fun swimming like everyone else.
* PlayingAgainstType -- Wait, the pervy teacher was played by the seiyuu for [[Manga/AhMyGoddess Belldandy]], the goddess of YamatoNadeshiko?
* PleasePutSomeClothesOn -- Mitsuka-sensei simply ''cannot'' keep her clothes on in front of her students. [[InnocentFanserviceGirl Meanwhile, Ren just doesn't get that she needs to wear clothing.]]
* PleaseWakeUp
* [[spoiler:{{Polyamory}}: By default, Takeya literally ends up with all the [=DearS=] who decided to return to space.]]
* PornStash -- Takeya works at a video rental store, which allows him to secretly swipe the latest adult releases, "renting them out" to his friends. A more typical example happens when Ren finds one of these videos beneath the kitchen sink and proceeds to watch it for "research" on Earth sex.
* PromotionToParent -- Neneko is in charge of being Takeya's mom, never mind that she's his age ''and'' a potential LoveInterest.
* ScrewTheRulesIHavePlot -- Ren and Miu's contest. Ren loses the first two contests by the rules, but nobody cares. (Miu conceded on the CookingDuel...or something. [[spoiler: Ren won the ball game.]])
* SexSlave -- Ren wants to be one. Takeya isn't into it.
* ShoutOut --
** "I bet underneath that pretty smile [[Series/{{V}} there's a lizard's face!]]"
** During the Dollfest chapter, Neneko has two dolls on display that look a lot like Shinku and Suigintou from [[RozenMaiden RozenMaiden]].
* SlaveCollar
* SomeCallMeTim -- One look at OverlyLongName tells you why they're called "Ren" and "Miu" for short.
* SpitTake -- Takeya, [[spoiler:especially in episode 3 when Ren goes to his school to bring food for him.]]
* StayWithTheAliens
* ThirdPersonPerson -- Ren, to demonstrate her childishness.
* TooHotForTV -- Episode 9.5 was only on DVD.
* {{Tsundere}} -- Neneko, though she's a lot more subtle about it than most; she prefers to yank Takeya's chain (mainly by making him do stuff for Ren) instead of directly attacking or insulting him.
* TrademarkFavoriteFood -- Ren and melon bread.
* UnluckyChildhoodFriend -- Neneko.
* UnwantedHarem -- Three girls all want Takeya, though a couple of them CannotSpitItOut.
** BalancedHarem -- In the manga, while the main focus is on Ren, all of the girls have a shot at him. [[spoiler: Most of them get him.]]
** SupportingHarem -- In the anime, due to AdaptationDistillation and CompressedAdaptation, the series ends as a Takeya/Ren show.
* VerbalTic -- Nia the CatGirl. Sometimes the only thing she says is "Ni!"
** "Nya" in the dub.
* WhatIsThisThingYouCallLove -- When they first come to earth, its believed the [=DearS=] are incapable of feeling love or knowing what it is. [[spoiler:Later, when Ren and Miu fall in love with Takeya, its revealed that Ren changed the [=DearS=] so they could feel love.]]
* YouAreNumberSix -- The [=DearS=]' {{Overly Long Name}}s are actually identification numbers, expressed in their native language. Few [=DearS=] seem to have true "names" that aren't shortened versions of their numbers.
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