[[quoteright:215:http://static.tvtropes.org/pmwiki/pub/images/psoh_vol9.jpg]]

->''"Welcome to my pet shop. Tonight, you will find something you desire."''
-->--'''Count D'''

''Pet Shop of Horrors'' is a {{Horror}}/[[SpeculativeFiction Fantasy]] {{josei}} manga by Matsuri Akino. Despite the title, the manga only rarely focuses on horror, instead slowly building up the relationships between its characters in a magical setting. The four-episode anime adaptation produced by Madhouse chose to focus largely on the horror, and re-imagined four chapters from the manga series.

''Pet Shop of Horrors'' is the story of a peculiar shop in the Los Angeles Chinatown, and the clients that visit it. The store's proprietor is an effeminate and sinister man only known as "Count D". He sells both normal animals and mythical creatures to people who visit his DysfunctionJunction. These animals and creatures can appear human to clients who are searching for something in life -- a pet to help them get over the loss of a child, for example, or to cope with unrequited love. Count D uses his pets to teach their human caretaker a lesson, making them sign a contract stating they'll take good care of their new friends. Almost inevitably, they don't. The outcome is rarely pleasant, although some stories (especially those involving pets given to children) do have very heartwarming endings.

Enter Leon Orcot, a young and inexperienced LAPD detective, who has noticed the correlation between some very messy deaths and the victims' visit to the titular pet shop. Leon takes to spending more and more time at the shop as the series progresses, developing a [[DidWeJustHaveTeaWithCthulhu peculiar]] yet [[HoYay close]] relationship with the guy he's supposed to be investigating for murder.

When Leon's traumatized and mute little brother Chris arrives to stay with his sibling, D becomes the boy's babysitter. Along with the animals of the pet shop, Leon and D become the boy's new family, and they gradually open up to each other. The cast additionally consists of Jill (Leon's detective partner), Tetsu (a teenaged Tao Tieh goat-demon with a crush on D), Pon-chan (a little raccoon girl), Hon Long (a three-headed dragon girl) and Q-chan (D's bat familiar). However, D's affection for Leon and Chris doesn't stop the pet shop's body count from increasing -- and when D's EvilutionaryBiologist father turns up after many years, Leon finds himself drawn into a desperate attempt to save all of humanity.

{{Tokyopop}}'s translation of the first few volumes [[CutAndPasteTranslation added swears, mistranslated many names and sound effects, included many typographical errors, and generally altered the source material]]. After four volumes, a new translator was hired, who ''immediately'' asked the manga's fan translation community on Yahoo Groups for help. As a result, the remaining six volumes of the series have a more accurate translation, although they, too, are riddled with flaws and egregious mistranslations. Much of the manga's text is also full of untranslatable jokes: D's speech in Japanese often states one thing in hiragana (ex. "innocent bystanders"), but something ''quite'' different in kanji (ex. "mere mortals"). Finding an annotated fan translation is still highly recommended to fully enjoy the series.

The manga has a sequel, ''Shin Pet Shop of Horrors'' (New PSOH, or PSOH:Tokyo, in English), with the action moved over to Shinjuku's Red Light District in Tokyo.

Has no relation with ''Film/LittleShopOfHorrors'', so no, you won't find giant man-eating plant monsters here.
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!!This manga provides examples of:

* ActuallyThatsMyAssistant: Despite serving as the caretaker of Count D's Petshop D's not the owner Count D. The ''actual'' Count D is D's grandfather.
* AlmostKiss: D loves getting a bit too close to Leon's face.
* AnimeChineseGirl: The Kirin chooses this form. It's approriate, considering the Kirin is a Chinese mythological creature. While many other "pets" look like adults, the Kirin looks like a young girl with bound feet, wearing a lavishly ornate outfit, flowered headdress, and imposing makeup.
* AntiHero: Count D and his grandson D
* AgeAppropriateAngst: Chris' guilt over "killing" his mother (she died in childbirth) is a major part of his characterization, and he becomes a bit of a [[TheWoobie woobie]] as a result. Leon, however, who was actually raised by the late Ms. Orcot until he was 18 or 19, never really goes in to his reaction to her death.
* AgentPeacock: D
* AgentScully: In spite of the steadily increasing volume of evidence, Leon simply refuses to believe that there are supernatural forces at work, instead trying to come up with "realistic" explanations
** Though Leon becomes an AgentMulder to the even more [[AgentScully skeptic]] FBI Agent Howell
* AlasPoorYorick: Alas poor man from OVA 2, whose head we see cradled lovingly by the mermaid replacement of his dead bride.
* AllMythsAreTrue: Unicorns, {{Kitsune}}, Phoenixes, and Vampires all exist in the [=PSoH=] universe, not to mention the fact that the pet shop's animals appear and talk as humans.
* AndYouThoughtItWasAGame: Leon is aware that D is dangerous, but he seriously underestimates ''how'' dangerous. Good thing D likes him... Chris, however, is totally unaware of the darker side of D's nature, but if anything, his innocence protects him.
** Wu-fei ''knows'', though... and falls victim to D's cases often. Far too often. [[spoiler:To the point of death, even.]] But, of course, [[spoiler:it's always [[AllJustADream an illusion]]]]
* ArtistsAreNotArchitects: While Akino's backgrounds are generally beautiful, there are times when perspective and distance are just off.
* AttemptedRape: D comes under danger of this a few times, though he either deals with it himself or [[spoiler:is saved by his pets]] before it goes beyond innuendo and/or threats to that effect.
** Xiao Fua [[spoiler:fights back against her Boss/attacker. She escaped the rape, but loses her life]].
* AudienceSurrogate: Jill.
* BigBrotherWorship: Count D's younger sister seems to have this.
* BigDamnKiss: D and Tetsu. Leon is disgusted by it.
* {{Bizarrchitecture}}: The pet shop.
* BlueAndOrangeMorality: D demonstrates this due to his preference for animals over humans, not batting an eye when humans die but caring when the animals do. In the second volume a queen comes to him and asks him to destroy a "bastard" that we are led to believe is a human fetus conceived in a runaway princess's womb, and says it's because of the promise his grandfather made. D does the deed with disgust, with Leon assuming that he murdered the ''human'' princess. What he actually did was [[spoiler: steal the last two eggs of an endangered bird species, destroy the sperm sample, and let it enter extinction.]]
* ButForMeItWasTuesday: Subverted; when a woman kidnaps D and Chris, Leon lies to his superior that he doesn't remember shooting her husband in self-defense, but he has a flashback to her grief.
* CharacterFocus: Leon, in ''Doom''.
** Wu-fei, in either volume 4 or 5 of ''Shin PSOH''.
** T-chan, in a sidestory that didn't appear in the Tokyopop version of PSOH.
*** Chris in the other sidestory, as well as the first chapter he appeared in and the second Christmas chapter...; he's popular!
* CharacterOverlap: D turns up to have tea with the lead character and his posse of animals in {{Genju No Seiza}}, ''Petshop's'' sister series.
** And in Shin PSOH (PSOH Tokyo), we have this guy from some other series that takes care of the petshop for a while.
** Femto-kun, all over both Petshop mangas.
* CelibateHero: D, for [[{{Asexuality}} obvious reasons]].
* CerebusRollercoaster: Chapters can have good, downer, or bittersweet endings. An example of a "good" ending would be a girl buying a dog that saves her from a relative trying to kill her for her inheritance. A Bittersweet one would be a mother dying to save her child.
* CheekyMouth: Averts this like the plague, except for some cartoony expressions.
* CherryBlossoms: Happens once, with the painting of a blooming cherry tree on a ''kimono''.
* ChristmasInJapan: Alluded to in chapter 5, ''Dragon'' where D (correctly) guesses that Leon is loitering in the petshop on Christmas Eve because he has no girlfriend to spend Christmas with.
* ContemplateOurNavels: Don't get D started, whatever you do. You'll be there for years.
** [[spoiler: Leon gets a serious case of this illness at the end of the manga.]]
* CoolPet: D has Q, and arguably every single pet in the series is a CoolPet of some sort.
** [[spoiler: Q is not his pet. Q is his grandfather the ''real'' Count D.]] But he doesn't know that. Neither do we, until the end.
* CostumePorn: Pretty much every single anthropomorphized animal has a jaw-droppingly gorgeous outfit, sometimes based on real-world folk costumes, sometimes made of pure fancy. Rich folds of embroidered cloth, ropes of pearls, elaborate hair or headdresses... it's a cosplayer's dream come true.
* CutAndPasteTranslation: Tokyopop's earlier English volumes seems to be a rather loose adaptation of the Japanese original, with dialogue often being ''completely rewritten'' for no good reason, sometimes [[DubInducedPlotHole inducing plot holes]] (see below at DubInducedPlotHole).
* DeathByChildbirth: Leon's and Chris' mother dies during childbirth. [[JustifiedTrope The story justifies]] this by mentioning that not only was she pregnant very late in life, but she wasn't in the best of health to begin with.
* DissonantSerenity: D, though it might be a mask -- case in point, ''Dynasty''.
* DoesThisRemindYouOfAnything: The idea and the title almost sounds a little like Film/LittleShopOfHorrors. Both works take a cynical look at human nature, and revel in characters being karmically punished by peculiar creatures.
* DotingParent: The parents in "Daughter" doted a little too much. [[spoiler:They lacked any will to discipline their daughter Alice and could never say no to her, even once she became addicted to drugs. This ultimately led to Alice's death by overdose when her mother caved in and gave her more drugs instead of helping her rehabilitate... and once they take home a pet from D's shop, they prove that they still haven't learned their lesson.]]
* DownerEnding: The series consists mainly of vignettes about the pet shop's clients. Not many have happy endings. [[spoiler: The conclusion of the series, in which D leaves Leon forever, isn't exactly what you'd call a happy ending either.]]
** It was expected by fans to be retconned in the second series, what with [[spoiler:the first two volumes ending with a short vignette about how Leon is chasing D ALL OVER THE WORLD.]] But Akino [[NoEnding left it hanging again.]]
* DramaticIrony: PSOH thrives on this, but the most obvious example is when Leon reassures himself that vampires don't exist... while the reader, through D's perspective, sees that the vampire in question is sitting on the couch behind Leon, in bat form.
* DrivenToSuicide: [[spoiler:Evangeline's real death. She found out that Jason still loved Louise, even after marrying Evangeline, and threw herself off the ship.]]
** [[spoiler:Medusa. After her lover removes her blindfold and dies upon looking into her eyes, she decides to take her own life by looking at her reflection.]]
* DubInducedPlotHole: In "Discovery" there's a scene where D treats Leon's wound, which Leon remembers also happening in what he assumes was a dream. That is significant, as realizing it ''wasn't'' a dream is part of Leon's final acceptance that D is not exactly a normal human. Nevertheless, in Tokyopop's "translation", Leon just remarks that D is as weird as a tattoo artist he once shacked up with--something the "translator" seems to have pulled out of their ass. Along with D apparently not remembering the "dream" in question, which is just ridiculous.
* DudeLooksLikeALady: D is constantly being mistaken for a woman.
** EvenTheGuysWantHim: Direct result of the above; happens to his father too back when he was a university student, in a [[HilarityEnsues hilariously obvious way]]; and then grandpa and that wedding proposal...
* EarlyInstallmentWeirdness
* HairDecorations: Xiao Fua. Lao-Tai Wei makes her put a flower in her hair for her visit to D so she wouldn't "look like a damn street urchin" when she went to bribe him. It worked.
* FantasticNatureReserve: The Count's shop.
* [[FairytaleMotifs Fairy Tale Motif]]: Eva's storyline parallels to the Creator/HansChristianAndersen's TearJerker FairyTale, "Literature/TheLittleMermaid".
* FoodAsBribe: Sometimes Leon can bribe D with pastries to assist him with cases.
* ForgotFlandersCouldDoThat: Tetsu goes from a being a cunning murderer to being a cute, child-like comic relief after his first appearance. In one of the final volumes, however, he's briefly shows as a bloodthirsty demon again, when the situation calls for it.
* FreakyFridayFlip: D lets a mermaid switch bodies with him for a while, so that she can go to the shore to contact her human boyfriend again. HilarityEnsues when Leon, who doesn't know what's going on, finds a seemingly amnesiac D and a hot naked mermaid.
* FriendlyLocalChinatown: Averted.
* GenerationXerox: D's whole family, with some pretty grim implications. All of them are mistaken for the ''real'' Count D(D's grandfather) [[spoiler: Chris eventually falls into this trope too.]]
* GrowingUpSucks: Even if Chris [[spoiler:hadn't regained his voice when he did]], he would still have lost the ability to see the pet shop's true form as he grew up.
* HairRaisingHare: An early chapter (and the first episode of the OVA) has a rich couple who lost a daughter visiting Count D's shop and taking home a very rare species of rabbit that looks exactly like said daughter. Unfortunately, their love for their daughter leads them to break one of the rules of D's contract, and much [[KillerRabbit rabbit-horror ensues]].
* HasTwoMommies: Sorta; Leon's been [[PromotionToParent promoted to parent]] in regards to Chris, and D is Chris's babysitter with an ambiguous relationship with Leon.
* HeIsNotMyBoyfriend: Leon tries to say this once when D runs into his arms to escape from [[spoiler: a vampire]], but D then stomps on his foot and tells him to be quiet.
* HeroicBSOD: Volume 10, D suffers from it [[spoiler:after getting shot by Vesca Howell and falling into a river; [[XanatosSpeedChess grandpa saves him by summoning visions of extinct species to motivate him once more to fight]] [[HumansAreBastards against humankind]]]].
* HistoricalInJoke: One kirin owner was Eva Braun, UsefulNotes/AdolfHitler's lady; [[spoiler:they name him ''Blondie'']].
* HeterosexualLifePartners: Leon and D, or [[HoYay alternatively...]]
** Also applies to [[spoiler: D's dad and FBI agent Vesca/Weskar Howell]], rubbing off on readers on an almost GenerationXerox level.
* {{Masquerade}}: [[spoiler:Count D and his family, along with the animals]].
* HumanityOnTrial: The pet shop clients [[spoiler:And, friendship with Leon notwithstanding, D's the prosecution...]]
** HumansAreTheRealMonsters: As far as Count D and his family are concerned.
* IAmAHumanitarian: [[spoiler: Chef Wong, from Dessert]]. Of course, it's because he's [[spoiler:actually a totetsu in a human's body]], but that doesn't make it any less ''creepy''.
* IdiosyncraticEpisodeNaming: All chapter names begin with the letter "D".
* InterspeciesRomance: Robin Hendrix and Medusa to the point where even D is surprised when [[spoiler: Medusa takes her own life after Robin's suicide]].
** Also from the first manga: [[spoiler:the fisherman and the mermaid]], Pon-chan and Hon Long for [[ObliviousToLove Chris]], T-chan and Mary (sidestory not in the Tokyopop version) as well as T-chan and D, [[MayflyDecemberRomance the vampire Marquis Alexander and Isabelle]], etc.; and it gets ''worse'' in the new manga.
* InTheHood: Count D to differentiate him from both his son and grandson D who are told apart from their hair lengths. The length of Count D's hair or whether he even ''has'' hair is unknown.
* InYourNatureToDestroyYourselves: D and his family acknowledge this. [[spoiler: They also want to [[FinalSolution accelerate]] [[WouldBeRudeToSayGenocide the process...]]]]
* ItWasHereISwear: [[spoiler:When the police and the FBI raid the petshop after D has left, Leon is shocked at finding only a small storage room instead of the vast underground maze]].
** [[spoiler:In that same chapter, Chris calls Leon and confesses what he saw as well, probably still in unbelieving shock that the petshop is gone.]]
* JediMindTrick: D uses this on a security guard of a [[spoiler: zoo sperm bank]].
* {{Josei}}
* KarmicDeath: And ''how!''
* KarmaHoudini: A ''phoenix'', oddly enough, [[spoiler:who makes a human suffer through several lifetimes, allows her to fall for each and every member of D's family time and again, has her die alone thanks to [[WhatIsThisThingYouCallLove love ignorance]], and then goes back over to D and his family to gloat about it]].
** [[spoiler:The phoenix was a gift to that human in her earlier lifetimes, when she was a princess in a foreign country. D's grandfather Count D gave it to her as a wedding present, to grant her a wish. All the girl wished for though was the heart of D's grandfather. Since the phoenix couldn't grant that wish, she was stuck reincarnating and dying until her wish was granted. Still doesn't excuse it for not telling D about the early death clause though.]]
* KarmaHoudiniWarranty
* KidsAreCruel: Most children in the series cruel, but there are a few exceptions.
* KillerRabbit: With actual flesh-eating bunnies.
* TheLittleShopThatWasntThereYesterday: The pet shop, which can make a labyrinth out of a tiny building and that can be packed up and moved on remarkably quickly.
** Wu Fei, in ''Shin PSOH'', lampshades this at some point in one of the first two volumes.
* LotusEaterMachine: The pets are the living embodiments of this, though they quickly become a means of creating a SelfInflictedHell.
* TheMafia: Let's generalize; however, notorious flavors are Italian, Japanese, Peruvian, and (of course) Chinese.
* MagicAIsMagicA: D is able to fully recover from mortal injuries, but he can't cure minor ones. When he hears that the "blood of a God" is needed at one point, he calmly slits his own wrist to provide it. But when he [[IBrokeANail breaks a nail...]]
* {{Mascot}}: Q-chan, Pon-chan and T-chan.
* MismatchedEyes: Count D has one gold and one violet eye. This may be an indicator that he's a supernatural being.
* MistakenForPregnant: A chapter in SPSOH tells the story of some swallow eggs that make women [[CloningBlues pregnant with a girl]] upon eating them, Wu-fei health-checks all of his employees (trying to catch [[SweetTooth D with diabetes]] or the like), D's results get switched with another person's, [[HilarityEnsues and...]].
* MoonRabbit is used as a metaphor for why technology can be a burden, saying that humans "killed" the Moon Rabbit, the Moon Princess, and all the other mythological creatures of the moon by landing on the moon and showing none of them are real. Chris then cheerily replies "That's not true! They were all hiding!" which is appropriate considering [[spoiler:Count D's Petshop is full of "mythical" creatures masquerading as pets.]] It also helps D gain more faith in humanity in general [[spoiler: which is a good thing because both D and Count D himself are actually monitoring mankind to see if/when they will be ready to join the rest of the animal world in harmony.]] Very appropriate considering one version of the Moon Rabbit has the rabbit pounding medicine to heal Humanity's wickedness and "wounds".
* MysteriousParent: D's dad and grandfather AKA the ''real'' Count D.
* NoEnding: The second manga leaves ''three'' plot threads hanging, namely [[spoiler:Leon's pursuit, Chris's framed drawing, and Wu-Fei's accidentally rejected kirin.]] The first two are from the first manga, making it more frustrating that Akino has, once again, ended up without a magazine to publish in, having to hurry to the end of the manga... The third was just a further kick on the face to the resident ChewToy.
* NoNameGiven: Count D's son and grandson(nicknamed D by everyone)
* ObfuscatingDisability
* OddCouple: Leon and D.
* OffModel: Matsuri Akino [[http://i.imgur.com/rxWZX.png cannot draw horses]].
* OlderSidekick: Chin to Wu-Fei, in SPSOH; arguably also a potential BattleButler.
* OnlyYouCanRepopulateMyRace: Offered to [[spoiler:D's dad and Vesca Howell]]; this trope was abused thoroughly this one time, much like MistakenForPregnant above.
* ParentalAbandonment: Leon's mother died giving birth to Chris and their father(s) is/are never mentioned. D has daddy issues of his own.
* PhenotypeStereotype: Both Leon and Chris are blond-haired, blue eyed, all-American boys.
** Doesn't stop with the Orcot brothers, though: their aunt, uncle, two cousins, and [[MissingMom their mom]]. Arguably, Jill is there too, and Agent Howell, and... well... Nearly anyone in the first manga, period.
* PromotionToParent: Leon, to Chris.
* PropheticNames: Possibly unintentional, but "Leon" pretty obviously means "lion," and the character shares a lot of traits with the king of the beasts. In a sidestory, he even reflects that it'd be great to be a male lion, lazing around all day and having a harem of lionesses...
** It's intentional--the author even writes in one author's notes that her image of Leon is a skinny male lion who is separated from his pride. Also, in "Dragon" D goes starry-eyed at hearing his name, and later refers to him as a lion he's taming.
*** This "taming" reference is lost for anybody with the TokyoPop version of the manga; it's simply ''not there''.
** [[SchmuckBait Don't]] search up the meanings of the characters that make up Wu-Fei's name. [[SchmuckBait Don't]] link his surname to the history of China. Call him [[FanNickname Taizu]] instead, and forget everything else!
* PsychoticSmirk: D, and he does it with style.
** It's a [[GenerationXerox family]] [[IdenticalGrandson thing]], really...
* ReplacementGoldfish: "Daughter", the first animated story, involves a rich family taking a very rare species of rabbit home that looks just like their lost daughter. Things go well, but then they break one of the rules...
* RightForTheWrongReasons: Leon about how D is unscrupulous, thinking him to be a common criminal instead of a FantasticAesop enforcer. The first anime episode displays this perfectly, when he accuses D of selling drugs to Alice Haywood while investigating the girl's death and the strange pet shop. Although he is right in that D did sell something of question to the Haywoods, it was actually a rabbit [[spoiler: that eats human flesh if it goes off its diet of raw vegetables]]. As the series goes on, however, Leon starts to see D's true nature, and the federal authorities applaud him for starting to see it.
* RuleOfThree: [[LotusEaterMachine The]] [[SelfInflictedHell pet]] [[DealWithTheDevil contracts]].
* SanitySlippage: It's safe to assume that Jason was slowly losing it when he was spending time with his mermaid, since it resembled Evangeline.
* SecretTestOfCharacter: Kelly Vincent, [[spoiler: in a rare subversion of the prevalent {{Downer Ending}}s in the series, passes with flying colors when he asks the Kirin to ensure the happiness of his best friend's wife over ambition. His reward? He wins the girl AND gets to be President of the United States.]]
** The tiger scroll chapter. Ends badly for all. [[spoiler:Including D and the tiger cub.]]
** Pandora and the Eye of Persia.
** Really, you could argue that D is putting most of his customers through such Tests. Selling their "pets" is a chance for them to come to terms with their grief, or their guilt, to have a new beginning of some kind or another. It just so happens that most of his characters fail.
* SexByProxy: Leon is tricked into sleeping with two girls in one night, unaware that they're plant spirits who use him to spread their pollen. Basically, they had plant-sex ''through'' him.
* ShoutOut:
** To ''Film/{{Gremlins}}'', at the very start of the manga.
** The names of the three recurring human characters? [[Franchise/ResidentEvil Leon, Chris and Jill]]. And Wesker Howell.
** The Honlon sisters are referred to by the name of Ghidora at one time, which is ''Godzilla'''s three-headed dragon enemy.
** In one omake: D cosplaying as a [[Franchise/{{Pokemon}} Team Rocket member, pokeball and all, claiming to want a Pikachu]] in the end notes of one of the volumes of the manga.
** There are near constant mentions of ''Series/TheXFiles'' in later volumes.
* ShownTheirWork: All those ''animals'', mythical and otherwise! ...and the fact that Akino has not yet run out of [[IdiosyncraticEpisodeNaming one-word titles beginning with D]]. Taking the animals and folklore one step farther, Akino also dedicates a portion of the back of each manga to explaining about the creatures used and how they fit into folklore or the story.
* SomebodyElsesProblem: If you violate your contract, then have fun dealing with your pet.
* SomeoneToRememberHimBy: Happens several times. If a woman gets pregnant in this series, the father is probably dead or about to die.
** In the episode where Count D and Chris get kidnapped by the grieving girlfriend of a man Leon shot on duty, the end of the episode reveals that she is pregnant with her lost boyfriend's child.
** In SPSOH, a woman living in denial of her husband's death gets a chance to see him one more time during the Bon festival of the dead. At the end of the three days, right before he returns to the land of the dead, he informs her that she "won't be alone from now on." Later, she is revealed to be three weeks pregnant... by her four-months-dead husband.
** Also in SPSOH, a dowdy would-be novelist gets transported to success and fame by one of D's pets granting her good fortune. She even meets a wonderful man who recently underwent the same rags-to-riches journey -- with a suspiciously similar pet. The good fortune is brought to a crashing end when both her pet and her new lover die on the same day... but both she and the surviving pet are pregnant.
* SpellMyNameWithAnS:
** The translator probably didn't realize that like Leon, Chris and Jill, agent Howell is also named after a ''ResidentEvil'' character, Wesker. He ended up romanizing his name as "Vesca".
** Woo-Fei, aka Taizu, is his last name Rau/Lau/Liu? And isn't Wu more appropriate either way than Woo?
** Leon and Chris: Orcot or Alcott?
** T-chan, or Tetsu or Tet-chan...?
*** This is just a case of TranslationConvention. In Japanese it's "Tet-chan", it was localized in the English translation as "T-chan".
* StarCrossedLovers: The [[spoiler:mole]] teenagers that are heirs of two Yakuza gangs.
* SweetTooth: Count D has this. Leon often uses brings over sweets in order to get information out of D.
* TwentyMinutesIntoTheFuture: The first series epilogue.
* UncannyFamilyResemblance: Played for both comedy and drama with D's sister in "Donor" - she looks so much like him that Leon mistakes her for D at first. She turns out to be [[spoiler: a modified ape, created by D's father as a heart donor for D, and raised to believe that she was a genuine person]].
* UndyingLoyalty: Daisy, [[spoiler: the dog]] for her human Maggie. When Maggie fails a SecretTestOfCharacter by adopting Daisy, treating her as something to boss around and getting jealous when her family likes Daisy better, the latter saves her from a fate of joining D's children that are left in the lab.
** All of the dogs in the dog chapters, really. Dreizhen, the doberman-turned-bodyguard, takes a bullet to save his mistress [[spoiler:from her evil cousin Edward.]] Anastasia, the borzoi in SPSOH, is at first so loyal to her servant handler rather than her wealthy owner that this threatens to get her in trouble. At the end of that story, Anastasia even complies with the handler's wish [[spoiler:to save his girlfriend at the cost of his own life... then leaps off the cliff after him.]]
* WeAllLiveInAmerica: The setting is in Chinatown of Los Angeles, but the original manga and anime has people speaking Japanese. In one case, Leon is able to get beer from a vending machine, which is ''not'' an American invention.
* WhatIsThisThingYouCallLove: D. Although it's never explicitly stated whether he genuinely doesn't understand it, or whether he doesn't want to ''admit'' he understands it. Evidence points to the latter.
* WhatNowEnding
* WhatHappenedToTheMouse: In SPSOH, [[spoiler:what happened to Leon after the two sidestories?]]
* WhatTheHellHero: One of the driving points of the series, more so in the anime; Leon ''hates'' that D sells dangerous pets to clients, and says that the shop is not liable. He makes good points about how they seem to be DisproportionateRetribution and can cause a moral hazard.
* {{Yandere}}: Norma Langley, [[spoiler:the very jealous vampire who attempts to kill D in volume 4]]; arguably, also D's father over D.
* YouCantFightFate: Hammered home incessantly.
* YourCheatingHeart: Most obviously in ''Delicious'', and it's a really convoluted example.
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