History Manga / Diabolo

* OffModel: Suddenly, Rai's missing his mouth on a splash page. Which is weird, considering that it would take ''two'' artists to overlook it. (The series is drawn by a pair of manga-ka twins.)

* NamesTheSame: [[OnlyOneName Mio]] the dead little sister and Mio Hashiguchi. [[spoiler:The ''other'' [[DeadAllAlong dead little sister.]]]]

** Mio had these as well and told Ren and Rai how her parents wanted her to disappear because she was [[IllGirl constantly ill.]]

* IllGirl: Both Mio and Kyouya.

* AlcoholicParent: After the initial incident with Mio, Ren's mother became one of these.

* AlphaBitch: Arisa from the 'Reincarnation Ritual' storyline.
* AmbiguouslyGay: Rai [[spoiler:and by that token, Nebiros as well.]]

* CloudcuckoolandersMinder: Nana fulfills this role for Rei.

* CooldownHug: After going to the illegal hospital, this is invoked times two. It works. [[spoiler:But only on Ren.]]
* CoupDeGrace: Sargatanas does this to [[spoiler:Satanachia by connecting a dimension between her hand and Satanachia's heart and ''crushing it''. DAYUM.]]

* DealWithTheDevil: The basis of the entire plot.

* DownerEnding: Depends on how optimistic you think the outcome is.

* FetusTerrible: Chiaki's impregnated with one of these in 'Conception'.
* FingerLickinEvil: Fleurety pulls one of these in her debut after decapitating one of her bedmates.

* InLoveWithYourCarnage: Satanachia, full stop. And Nebiros seems to fancy it as well.
* TheManBehindTheMan: Mio is the BigBad.

* RedOniBlueOni: Ren is red to Rai's blue.

* BigDamnVillains: Near the end, [[spoiler:Fleurety, Sargatanas and Agliarept do this. AND IT IS AWESOME.]]

* DownerEnding: Depends on how optimistic you are with the outcome of the story.

* InfantImmortality: Averted. [[spoiler:A baby is thrown to its death within the first chapter]], which gives you a pretty good idea how seriously the mangaka take AnyoneCanDie.

* DomesticAbuser: Several characters have these in their lives, including Mio Hashiguchi (her brother), Ren (his mother), and Tsukiko (''everyone'').

* WoobieDestroyerOfWorlds: All six of the Great Spirits.

* AbusiveParents: Once Ren's mother finally reaches her breaking point, she realizes how much Ren is beginning to look like his father. [[spoiler:She then tries to [[RapeAsDrama rape]] [[ParentalIncest him.]] Failing that, she sets herself on fire.]]

%%* SuperpoweredEvilSide: Nebiros.

* AbusiveParents: Once Ren's mother finally reaches her breaking point, she realizes how much Ren is beginning to look like his father. [[spoiler: She then tries to [[RapeAsDrama rape]] [[ParentalIncest him.]] Failing that, she sets herself on fire.]]

* AlmostKiss

* AmbiguouslyGay: Rai [[spoiler: and by that token, Nebiros as well.]]
* AnyoneCanDie

* BigDamnVillains: Near the end, [[spoiler: Fleurety, Sargatanas and Agliarept do this. AND IT IS AWESOME.]]
* BittersweetEnding

* BodyHorror: The climactic roof rendezvous between Nema, the Master, Rai, and Nebiros starts off normally. [[spoiler: And then Nema and the Master's flesh starts melting off.]]

* {{Cloudcuckoolander}}: Rei.

* CooldownHug: After going to the illegal hospital, this is invoked times two. It works. [[spoiler: But only on Ren.]]
* CoupDeGrace: Sargatanas does this to [[spoiler: Satanachia by connecting a dimension between her hand and Satanachia's heart and ''crushing it''. DAYUM.]]
* CrapsackWorld: The first storyline is about [[spoiler: a dead girl who was brutally raped and murdered by her boyfriend and then revived to bear a demon child.]] Most of the story is equally grim.
* CreepyChild: Satanachia [[spoiler: and Mio especially, once you find out what she has done.]]

* DarkMagicalGirl: Fleurety
* [[spoiler: DeadAllAlong: This series likes this trope. Not only was Chiaki from 'Conception' murdered, but Mio from 'Omen' as well.]]

* [[spoiler: DownerEnding: Depends on how optimistic you are with the outcome of the story.]]
* DespairEventHorizon: Tsukiko quietly accepting [[spoiler: being kept as a sex pet and getting gang-banged by her roommates acts as this for Rai.]]

* [[spoiler: FalseInnocenceTrick]]

* FourEyesZeroSoul: Nebiros
* FromBadToWorse: Oh, so you're doomed to lose your soul when you turn eighteen but you get [[CursedWithAwesome super awesome powers]] from it, well that's not so--wait, you start to [[SanitySlippage lose your mind]] as your [[WithGreatPowerComesGreatInsanity powers get stronger]], okay that's pretty bad, but still--you got your powers because the [[ChildhoodFriend little girl you played with]] all the time was sacrificed in a demonic ritual that you were blamed for, that's kinda screwed up--[[spoiler: your best friend goes batshit crazy and joins the dark side, [[WitchHunt the whole country is paranoid]], there's a giant Satanic [[ReligionOfEvil cult of seventeen year olds on the rise]], parents are murdering their children out of fear, and the only way to stop it is by killing not only yourself, but your best friend as well.]] Well [[PrecisionFStrike fuck.]]
* {{Gorn}}: Hello, hospital scene!
* GratuitousSpanish: A diabolo is a child's toy. Diablo, on the other hand, is another thing entirely... [[spoiler: However, one could always argue that Diabolo is correct, given the ending.]]
* HeroicBSOD: Ren has one [[spoiler: after Rai disappears]].
* HeterosexualLifePartners: Ren and Rai...[[HoYay maybe]].

* InfantImmortality: Averted. [[spoiler: A baby is thrown to its death within the first chapter]], which gives you a pretty good idea how seriously the mangaka take AnyoneCanDie.

* [[spoiler: TheManBehindTheMan: Mio is the BigBad.]]
* MeaningfulName: Tsukiko means 'moon child'. [[spoiler: Fleurety gets her powers from the full moon.]]

* NamesTheSame: [[OnlyOneName Mio]] the dead little sister and Mio Hashiguchi. [[spoiler: The ''other'' [[DeadAllAlong dead little sister.]]]]
* NiceJobBreakingItHero: [[spoiler: After meeting Rei, Rai gets horribly sick. Ren leaves to go find Nana because she knows where illegal hospitals for the homeless are. Fearing that it's a Diabolo trap, Rai chases after him and the two find the hospital staff brutally slaughtered. The smell of the blood and the sight of the mutilated bodies causes Rai to start his fall and leaves teetering on the brink of becoming [[SuperpoweredEvilSide Nebiros.]]]]
* TheNoseKnows: Rai, who is mentioned to have a good sense of smell several times. [[spoiler: It plays a part in initiating the fall.]]

* PinkySwear: Ren and Rai share one of these in 'Awakening'. It helps Rai remember the warmth of their friendship and what he's fighting for. [[spoiler: And later Rai goes full Nebiros and ''bites his pinky off''.]]

* RapeAsDrama: Chiaki and Tsukiko.

* SelfMadeOrphan: [[spoiler: Mio]]

* SuperpoweredEvilSide: Nebiros.
** All of the Great Spirits to varying degrees.

* SdrawkcabName: What's Nema backwards?
* TakingYouWithMe: Agliarept is taking the world with him, Nebiros and Ren are going down together, parents and children are committing murder-suicides across the nation... There's lots of this, especially in the final volume. [[spoiler: Oh, and Mio.]]
* {{Tearjerker}}
* WoobieDestroyerOfWorlds: All six of the Great Spirits.

* ShownTheirWork: While the Six Great Spirits' names and abilities may seem sort of random, further research will yield that they're all members of the six chief gods of Hell except for Nebiros, who replaces the King of Demons Asmodeus.

* TakingYouWithMe: Agliarept is taking the world with him, Nebiros and Ren are going down together, parents and children are committing murder-suicides across the nation... There's lots of this, especially in the final volume. [[spoiler: Oh, and don't forget Mio.]]
* {{Tearjerker}}: Oh so very much.

* SuperpoweredEvilSide: Nebiros. That is all.
** Pretty much all of the Great Spirits to varying degrees.

* SomeoneElsesProblem: See a potential rape victim? '[[HumansAreBastards Forget it.]] You don't want to get involved.'

* DeadLittleSister: Mio. [[spoiler: Actually averted when Mio reveals herself as the BigBad.]]

* NamesTheSame: [[OnlyOneName Mio]] the DeadLittleSister and Mio Hashiguchi. [[spoiler: The ''other'' [[DeadAllAlong dead little sister.]]]]

* InfantImmortality: Averted ''hard''. [[spoiler: A baby is thrown to its death within the first chapter]], which gives you a pretty good idea how seriously the mangaka take AnyoneCanDie.

* ItGotWorse: Oh, so you're doomed to lose your soul when you turn eighteen but you get [[CursedWithAwesome super awesome powers]] from it, well that's not so--wait, you start to [[SanitySlippage lose your mind]] as your [[WithGreatPowerComesGreatInsanity powers get stronger]], okay that's pretty bad, but still--you got your powers because the [[ChildhoodFriend little girl you played with]] all the time was sacrificed in a demonic ritual that you were blamed for, that's kinda screwed up--[[spoiler: your best friend goes batshit crazy and joins the dark side, [[WitchHunt the whole country is paranoid]], there's a giant Satanic [[ReligionOfEvil cult of seventeen year olds on the rise]], parents are murdering their children out of fear, and the only way to stop it is by killing not only yourself, but your best friend as well.]] Well [[PrecisionFStrike fuck.]]