''Yugen Kaisha'' (or ''You-Gen-Kai-Sha'' of ''PhantomQuestCorp.'') is a comedy/horror/mystery {{OVA}}.

The series consists of four episodes, each with a 35 minute runtime, which follows the exploits of You-Gen-Kai-Sya or Phantom Quest Corp, an organization lead by one Ayaka Kisaragi. They specialize in tracking down and taking out the supernatural - from ghosts, vampires, and every other manner of evil spirits across Tokyo. The only opposition that the company runs into is the constant onset of debt.
----
!!!Tropes associated with Yugen Kaisha:

* AccidentalPervert: Karino, in Incident File 03: Love Me Tender, when he walks in on Mr. Nagasuki and his secretary [[InterruptedIntimacy while they're getting it on in his office!]]
-->'''[[SexyDiscretionShot *secretary screams from off camera*]]'''
-->'''Nagasuki:''' "Get the hell out of here!"
-->'''Karino: (closes door, snickering)''' "Hot action."
* ActionGirl: Ayaka. She hunts down spooks and demons, then takes 'em out. Or she has Rokkon excorcise them.
* AssholeVictim: Mr. Nagasuki. He doesn't die, but close enough.
* ATeamFiring: gets lampshaded during Incident File 02: "End of the World" after Karino empties half a clip without hitting the evil doctor, who's less than ten feet away!
-->'''Ayaka: (incredulous)''' "Where the hell'd you learn how to shoot?!"
-->'''Karino: (shrugs sheepishly)''' "At the academy!"
* BaldOfEvil: [[spoiler: The Hadja]], a monk group who challenges Phantom Quest in the fourth episode; their leader, [[spoiler: Mukyo]], in particular.
* [[BarrierWarrior Barrier Monk]]: Rokkon, Phantom Quest's staff exorcist.
* BeleagueredAssistant: Makoto, who despite being roughly eight years old, handles pretty much everything on the administrative end of the business, along with doing his best to keep Ayaka from drinking and spending herself to death.
* BewareOfHitchhikingGhosts: Narita.
* [[HardDrinkingPartyGirl Bottle Fairy]]: Ayaka. Big time. She's known for getting plastered and punching out cab drivers. Or just getting plastered period. The intro even shows Karino carrying her home while she's drunk, and in case file 01, [[OurVampiresAreDifferent Bosco]] refused to take her blood, due to the alcohol content!
* BreakingAndBloodsucking: Dracula initially preys on Makiko whenever she steps out at night. But, after repeat interference from Ayaka and Bosco, he goes straight to her bedroom. But Karino's timely arrival causes Dracula to flee with Makiko to TokyoTower.
* BrokeEpisode: The members of Phantom Quest end up part timing just to get by, during incident file 04, thanks to [[spoiler: the Hadja]] stealing all of their clients.
* ByThePowerOfGreyskull: "Red dragon spirit, capture Star Sword."
* CatchPhrase: There's three used regularly throughout the series:
** The first is done by Karino, at the end of each episode: "Ms. Ayaka, are you alright?"
** Ayaka's is usually to the effect of: "Phantom Quest has solved the case", or "And so, another case has been solved by Phantom Quest."
** And, finally, there's Mamoru's: [[PerpetualPoverty "We're in the red]] '''[[PerpetualPoverty AGAIN!!"]]'''
* CharlesAtlasSuperpower: Rokkon who, in the fourth incident file, leaps from the third floor of the Hadja's temple, while carrying Karino and Nanami and lands, without injury.
* ChildrenRaiseYou: {{Parodied}}. Ayaka's sorta responisible, but her recklessness often lands Phantom Quest deep in the red. It doesn't take long to see that it's Mamoru's management skills that keeps the company afloat. Not to mention all the times he has to chastise her for getting drunk, and over sleeping.
* ChristmasCake: Ayaka sometimes asks Madam Sumei if there's any hope for her love life only to be told her chances of finding happiness are zero. Doesn't help that she gets called an "old lady" by a cafe full of young teen/twenty-something females either.
* CovertPervert: Karino again, in the final episode, where he gets [[MaleGaze an eyefull]] when Ayaka loses her top; which earns him a MegatonPunch.
* DeadlyDoctor: The demonically possessed doctor from Incident File 02: End of World.
* [[DeclarationOfProtection Declaration of Protection]]: Bosco and Narita toward Makiko and Natsuki respectively.
** In the first Incident File, it first appears that Bosco is stalking Makiko. It's eventually revealed that he was protecting her from another vampire, who had recently reincarnated.
** In Incident File 03, Narita keeps his girlfriend safe from Nagasuki's advances, and takes it upon himself to set up the exhibit for her, after Nagasuki pulls the night crew... and does it all from the afterlife!
* DestructiveSaviour: Ayaka, and she has the bills to show for it too.
* DistressedDude: Karino fills this slot during the fourth episode, "Lover Come Back to Me".
* DoggedNiceGuy: Karino tries in subtle ways to impress Ayaka and prove she can depend on him, such as incident file 03, where he attempts to tail Nagasuki, thinking Ayaka would be proud of him. Sadly, he blows a tire and gets left by the side of the road. Earlier, he attempts to surprise her with a box of pastries, but drops it on the way. Needless to say, Ayaka was not impressed.
* ElevatorSnare: Karino manages to keep up with the hospital's elevator by running up the stairs for at least four floors.
* [[FedToTheBeast Fed to the Ghosts]]: [[spoiler: Mukyo]] threatens to do this to Karino, after he's caught investigating his scam operation, by dangling him over a pit filled with all the apparitions [[spoiler: the Hadja]] allegedly excorcised.
* FieryRedhead: Ayaka's not-so-bad, most of the time, but she's known for her rash behavior and having a hair trigger temper.
* HeavySleeper: Ayaka Kisaragi.
* HerHeartWillGoOn: Natsuki by the end of Incident file 03: Love Me Tender.
* HeroicBSOD: Nanami has one near the climax of the final case file, when she, Rokkon, and Karino find themselves surrounded and vastly outnumbered by ghosts. She becomes so frightened that her mind goes blank, complete with [[WingDingEyes spiral eyes]]; making it a rare [[PlayedForLaughs comedic version]] of the trope.
* ImprobableWeaponUser: Ayaka's lipstick becomes a friggin' [[LaserBlade light sabre!]] It even makes the same sound effect when activated.
* InterspeciesRomance: Makiko and [[OurVampiresAreDifferent Bosco]], by the end of the first episode.
* InTheNameOfTheMoon: Ayaka sometimes gives a Name Of The Moon speech when introducing herself to villains.
* ISeeDeadPeople: Just about everybody in the series, though it's mainly Phantom Quest. It's all part of the job.
* KickTheDog: Mr. Nagasuki does this repeatedly to Natsuki in his efforts to get her into bed. First by coming onto her, then pulling the night crew from the exhibit when she rejects his advances. He finally threatens to cut off the exhibit's funding unless she [[SexualExtortion "co-operates".]] Thankfully, she had Phantom Quest to protect her [[spoiler: and Narita.]]
* LeaveTheTwoLovebirdsAlone: Nanami invokes this at the end of the final episode by ushering Rokkon away when she realizes that Ayaka's getting ready to [[RelationshipUpgrade confess her feelings]] to Karino; complete with HeldGaze and LuminescentBlush.
* LetsGetDangerous: Ayaka and Karino.
* LoveRedeems: A {{flashback}} reveals that Bosco repeatedly exposed himself to crosses, garlic, high powered UV lamps to build resistance [[RemovedAchillesHeel (eventually immunity)]] to sunlight, and even tried to give up blood [[spoiler: which he found he couldn't, so he limits himself to feeding only four times a year, while taking supplement tablets inbetween]], all so he could be with Makiko.
** The downside, however, is it's caused him to become anemic and lose much of the power he'd have, as a vampire, [[spoiler: if he fed regularly.]] Even so, he's perfectly content that way, [[YouAreWorthHell so long as he can be with her.]]
* MaybeEverAfter: There's no denying [[UnresolvedSexualTension the attraction between Ayaka and Detective Karino]], but Ayaka is obstinate and plays hard to get. She's not above flirting with him though. At the end, she starts to confess her feelings for him, 'til [[spoiler: her top pops open due to ClothingDamage from her duel with Mukyo.]] Naturally, [[AllMenArePerverts he couldn't help but look]] and gets [[MegatonPunch decked for it.]] It's unknown whether he still has a shot with her afterwards, or if he's ruined his chances for good.
* MsFanservice: Ayaka's a redhead, has a stunning figure [[ChristmasCake for a woman her age]], routinely sleeps in the nude, and will often show up for breakfast, in her panties, with her top open. Oh, and [[ShesGotLegs she's got legs.]]
* NatureAdoresAVirgin: Discussed in-series, when Bosco explains to Ayaka that it's become harder for vampires to find virgins in their day and age, given how liberal society had become. The fact that Makiko is [[PurityPersonified not only a virgin, but doesn't drink, doesn't smoke, or do drugs]], makes her blood especially pure. Which causes her stick out like a walking neon "drink me" sign and is the reason she was being relentlessly pursued by Dracula.
* NotAMorningPerson: Ayaka Kisaragi. See the [[HardDrinkingPartyGirl Bottle Fairy]] entry above.
* NotDistractedByTheSexy: Mamoru is completely unfazed by Ayaka's habit of sleeping in the nude, and shows neither interest or embarrassment when he enters her room to wake her up each morning; nor is he bothered by how she shows up for breakfast.
* OccultDetective: U Division's Detective Karino, who commisions jobs to Phantom Quest. Ayaka and Madam Sumei count as well.
** ParanormalInvestigation: It's right there, in the company name and their job description. If it has anything to do with paranormal, or supernatural activity, Phantom Quest and U Division will take the assignment.
* OurGhostsAreDifferent: Narita. The guy can cover the nightshift, in case your workmen bail on you, and can [[HardDrinkingPartyGirl knock 'em back like a pro]] when he's done.
* OurVampiresAreDifferent: Bosco is anemic [[spoiler: due to limiting himself to feeding only four times a year]], and runs a tea shop for pretty young twenty somethings. Plus, he's a NiceGuy!
* PermaStubble: Karino.
* PerpetualPoverty: While Phantom Quest always solves the case, they always end up in the red due to Ayaka's recklessness and spending habits.
* PlayingWithFire: Nanami's special ability. Too bad [[PowerIncontinence she has trouble controlling it]], especially when she's frightened.
** RedEyesTakeWarning: If you see flames ignite in her irises, [[OhCrap RUN.]]
* ReassignedToAntarctica: U Division seems to be this, with a grand total of three employees. One apparently sitting around passing time until retirement or death, a lady with a HairTriggerTemper, and Karino, who's...[[ArsonMurderAndJaywalking a bit shabby.]]
* RemovedAchillesHeel: As seen in the LoveRedeems entry, Bosco eventually became immune to sunlight, garlic and crosses through controlled exposure to them.
* RicaMatsumoto: Ayaka's Japanese seiyu
* ShipTease: Ayaka with Karino, gets [[ShipSinking deep-sixed]] in the end though. [[MaybeEverAfter Or was it...?]]
* SingleWomanSeeksGoodMan: Ayaka realizes [[ChristmasCake she isn't getting any younger]] and desperately wants to find that 'special someone'. She knows Detective Karino is in love with her and often goes out of his way to try to prove she can depend on him, which she likes about him, even though he screws up a lot of the time. [[PlayingHardToGet But she doesn't make it easy for him.]]
** Makiko also qualifies. Though she wasn't actively looking for love, she finds it anyway when she [[RescueRomance falls for with]] [[NiceGuy Bosco]] at the end of the first Incident File.
* SleepingWithTheBoss: In Incident File 03, Mr. Nagasuki gets [[InterruptedIntimacy caught in the act]] of having sex with [[SexySecretary his secretary]], when Detective Karino drops by his office to question him. Nagasuki and his secretary are later [[ModestyBedsheet shown in bed together]], at his condo.
* SoLongSuckers: Ayaka does this to Madam Sumei, when it comes time to pay for her services.
* StalkerWithACrush: A rare instance where it's {{justified}}. Though Bosco is love with Makiko, he wasn't stalking her. It turned out that he was [[DeclarationOfProtection protecting her]] from Dracula, who had recently reincarnated and was repeatedly victimizing her.
* TakingYouWithMe: Mukyo attempts this, after his defeat, by [[spoiler: grabbing Ayaka's leg then pitching himself off the roof with his dying breath. He ends up in a tree. Ayaka, however, ends up [[ShipTease in Karino's arms]] when he breaks her fall by catching her.]]
* UnresolvedSexualTension: Between Ayaka and Detective Karino, with shades of BelligerentSexualTension.
* WendeeLee: Ayaka's English dub voice.
* WillfullyWeak: Bosco is anemic, due to [[spoiler: only allowing himself to feed four times a year]], which has also deprived him of the strength he'd possess as a vampire. And he's perfectly fine with that, [[Heartwarming/YuugenKaisha since he'd much rather have Makiko.]]
* WillTheyOrWontThey: Played with over the course of the series. It almost happens at the end of the final episode... then Karino mucks it up. See the MaybeEverAfter entry above.
----