There's a legend among the girls of Shinyo Academy about Boogiepop, a ''shinigami'' who can take you away while you're still young and beautiful. But when a series of students begin to go missing, it soon becomes apparent that Boogiepop isn't just a legend, and furthermore, there's much more going on beneath the pristine surface of the school.

The series consists of 15 light novels, an anime series (''Anime/BoogiepopPhantom''), a live action movie, two [=CDs=], and two attendant manga series. The series is also credited with kicking off the Light Novel trend in Japan, and the anime series along with several of the novels have been released in the U.S.

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!!Contains examples of:
* ArcWords: "Sometimes it snows in April"
* AmbiguousGender: Boogiepop is often referred to as male, but its actual gender is never stated, and it's entirely possible that it actually [[NoBiologicalSex doesn't have one]]. In the original Japanese novels an ambiguous pronoun was used to help this along.
* ArtificialHuman: The Towa Organization specializes in making these and setting them up as {{Deep Cover Agent}}s.
* {{Bifauxnen}}: Nagi Kirima is described as looking "handsome", and Boogiepop while possessing Touka is often mistaken for male.
* BigDamnHeroes: The stories are told from the perspectives of people ''other'' than Boogiepop. These people are frequently teenagers who get in over their heads in bad situations leading to Boogiepop showing up to save the day.
* BodyHorror: Most stuff having to do with Manticore, which slowly robs you of your mental functions and turns you into a puppet. The way [[spoiler:Kisugi Makiko]] kills also qualifies, since it involves taking a person's brain out ''while they are still alive''.
* {{Bokukko}}: Nagi frequently uses male pronouns and styles of speech.
* CharacterTics: Boogiepop frequently has an asymmetrical expression that's probably supposed to be a smile, [[spoiler:that he copied from a dying Kuroda]]
* ChekhovsGunman: Frequently characters mentioned only briefly become very important later.
* CrapsackWorld: The world of Boogiepop generally isn't very nice.
* CrazyPrepared: Nagi, and she usually needs it at some point. For example, in ''Boogiepop at Dawn'', she caries with her a bag of [[spoiler:special electricity conducting materials, a rod to deliver a powerful electric shock, and an insulated jumpsuit against the current, all of which she uses to fry Kisugi Makiko]]. That same jumpsuit is also bulletproof. Lampshaded when someone wonders just [[WhereDoesHeGetAllThoseWonderfulToys where she gets the stuff]].
* EvilutionaryBiologist: The Towa Organization consists mainly of these.
* FauxlosophicNarration: Not really narration, but the Kirima Seiichi quotes definitely qualify. The English translators noted that they had a heck of a time keeping those quotes cryptic and mysterious while also making sure they made ''some'' kind of sense.
* HealingFactor: Most of the artificial humans possess some form of this.
* HeroicSacrifice: [[spoiler:Echoes]] and in a slightly more twisted version [[spoiler:Masami]]. In ''Boogiepop at Dawn'' we also have [[spoiler:Kuroda]] and [[spoiler:Mo Murder]] both end up making these to [[spoiler:save Nagi]].
* HeroicWannabe: Nagi's step brother Masaki ends up becoming his own version of Boogiepop, and eventually has to be saved by the real thing.
* HitmanWithAHeart: [[spoiler:Masanori Sakaki]] aka [[spoiler:Mo Murder]] eventually becomes this, leading to the above HeroicSacrifice.
* HomoeroticSubtext: Suema seems to go just a ''bit'' farther than necessary to get close to Nagi than one would usually think normal.
** Not to mention Anou Shinjirou's crush on Masaki, which is actually fairly explicit for the genre.
* IllGirl: Nagi started out as one, [[spoiler:before she was cured by Kuroda's actions]]
* LoveMakesYouCrazy: Masami Saotome, though it's implied he was already pretty twisted.
* MartyrWithoutACause: Nagi again
* MyGreatestFailure: Nagi considers [[spoiler:the death of Naoko]] to be hers.
* NoExportForYou: Seven Seas published the first three and sixth books before stopping due to poor sales. Thankfully, book 6 is a prequel to 1 and 2-3 is a self-contained story arc, so it's not like they ended on a cliffhanger.
* NoSocialSkills: Orihata Aya, aka [[spoiler:Camille -- an artifical human]]. She gets better at the whole "human interaction" thing as time goes on.
* OrdinaryHighSchoolStudent: Half the cast, though some more than others. In Masami Saotome's case, his normalcy is why Nagi rejected him.
* PillarOfLight
* ProfessorGuineaPig: [[spoiler:Kisugi Makiko]], and actually lampshaded as a stupid idea, but they do it anyway.
* PsychoElectro: Spooky Electric.
* RazorFloss: Boogiepop's main weapon.
* RichIdiotWithNoDayJob: Though she's still a high school student, Nagi maintains this image.
* SecretIdentity: Touka as Boogiepop. Subverted in that almost everyone figures it out ''instantly''.
** Except herself. (She might be aware of Boogiepop to some extent.)
* {{Shinigami}}
* ShoutOut: The series frequently makes references to music, including two to Prince in the form of the characters Spooky E and Camille. The chapter names are also frequently borrowed from song titles.
* SplitPersonality: Boogiepop from Touka, or at least that's one theory.
** This actually applies more to the anime, where its pretty much directly stated he's a separate personality. In the novels, it seems that its more heavily implied that Boogiepop is a separate entity that is using Touka as a vessel.
*** Boogiepop says in the first novel that "Simply put it resembles the concept of the split personality." but then later claims he is not one of Touka's other possibilities and he does not know if Touka created him nor does he think the issue is important and he'd rather just get on with saving the world.
**** The manga Boogiepop Dual however treats Boogiepop as a separate personality that can inhabit a body, even being passed down from one person to another. Dual has Akizuki Takaya the current (and male) Boogiepop and Motoka Igarashi the previous (female) Boogiepop who is Takaya's school teacher. Dual also hints at earlier Boogiepops, possibly Tokua, but its canon to the other books is not clear.
* TooGoodForThisSinfulEarth: [[spoiler:Kamikishiro Naoko]], slightly subverted in that [[spoiler:she]] was also something of a delinquent. Also arguably [[spoiler:Echoes]].
* WeirdnessMagnet: The ''entire town''
* WiseBeyondTheirYears: Nagi again, as well as Boogiepop.
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