!! [[Film/{{Onmyoji}} Film]]

* HoYay: Seimei and Hiromasa. ''Seimei and Hiromasa''. "Oh, I don't care about the world, but I'll save it if ''you'' really want me to."
** Comes up in the sequel too. They ''really'' don't want each other to die.
* MoralEventHorizon: [[spoiler: Genkaku didn't seem all that disturbed when he offers his children up as sacrifices to the gods or when he kills his wife.]]

!! Video game
* BigLippedAlligatorMoment: The dream Seimei has [[spoiler: in which he kills Kagura]] at the beginning of episode 11 can be viewed as this. Neither is it mentioned again nor does it play any important role in the story.
* TheComputerIsACheatingBastard: [[spoiler: Let's face it, Computer[[note]]or Smartphone in this case[[/note]] Ōtengu in chapter 18's battle against Kuro Seimei is ''unbelievable''. Nowhere else in the game do you find anyone with ''two'' special ''[[RareCandy mitama]]'' effects at once.]]
** Bosses in later level of the skin dungeons get this as well, which means that having gotten those skins indicates a very powerful and competent player.
* CriticalResearchFailure: Many inaccuracies in this game stray out of ArtisticLicense territory and fall squarely into this, which are mainly concerned with history, such as the lives of [[HistoricalDomainCharacter Seimei and Hiromasa]] being ''nothing'' like recorded in historical documents. There is also the fact that in mythological canon, Tamamo no Mae and Seimei never met. The numerous musical inaccuracies can also make every musician out there sob.
* DracoInLeatherPants: You can bet [[spoiler: Yaobikuni]] is ''bound'' to get this treatment in fan works. It is completely {{Justified|Trope}} [[spoiler: as the {{big|BadFriend}} [[EvilAllAlong damn]] [[BitchInSheepsClothing reveal]] comes too late and her [[NiceGirl original]] [[YamatoNadeshiko characterization]] has already been established in the minds of most fans.]]
** Ōtengu is also getting this as well, what with his being a HeelFaceRevolvingDoor. Yuki-onna is also a frequent victim of this, as her villainy is not revealed until fairly late in the story.
* FoeYay: Believe it or not, the moment when [[spoiler: [[ScrewYourself Kuro Seimei chokes Seimei]] in chapter 18]] can be viewed as this.
* FridgeHorror: The possible fate of Yōko's other victims. Just think about it: Koi-no-sei isn't his first and only; Kappa has reported cases of ''yōkai'' going missing to the ''onmyōji'' before Koi-no-sei is kidnapped herself. At the end, only she is seen rescued. It can be very scary to imagine whatever happened to the rest of Yōko's victims and what he might have possibly done to them.
* SugarWiki/{{Funny Moment|s}}: [[LargeHam Yōko]]'s defeat at the end of chapter 7. ''Kooooon kooooon'', indeed.
** Thanks to the fact that Seimei's DeflectorShield NoSell[=s=] any purely debuffing skills except for that of Ame-onna, watching A.I Amanojaku Red tries to provoke your team members or A.I Dream Eater tries to put them to sleep can be quite hilarious.
** Shuten-dōji's crying like a baby after he gets his butt kicked hard ''again'' by Seimei in chapter 22, and the conversation that follows.
-->'''Ibaraki-dōji:''' Haha, you have finally experienced it for yourself now, Shuten-dōji. It's called "{{misery|BuildsCharacter}}". Once you are brought to tears, you naturally can't help but rage. That feeling is known as misery. And now you have just had a taste of it! When you overcome your misery, then you will be able to obtain true strength.\\
'''Shuten-dōji:''' True strength?\\
'''Ibaraki-dōji:''' Yes. And the key to overcoming your misery is but a new victory! So, my friend! Hurry up and defeat me right now! Quickly!\\
'''Shuten-dōji:''' It's boring, so hell no.\\
'''Ibaraki-dōji:''' [[BigWhat What!?]]
** Hangan's epic OutOfCharacterMoment in episode 23.
* GameBreaker: Any player who manages to summon Ibaraki-dōji can consider themselves ''very'' lucky. He is ''way'' stronger than most other ''shikigami'', even those of the same rarity. Adding to that the fact that his passive skill allows him to deal SplashDamage, he can very easily OneHitMultikill an entire full-HP team.
** The same could be said for Ichimokuren and his ability to ''nullify'' opponent damage to all members of his team. The effect could take multiple turns to be finally broken, rendering anyone protected by it pretty much invincible.
* HoYay: The Hair Eater is confirmed to be in love with Seimei in canon. It surely doesn't help matters that his sister is [[ShipperOnDeck completely supportive]] of this.
** Ibaraki-dōji's unquestioning and, frankly, ''masochistic'' loyalty toward Shuten-dōji comes off as this. Made even more obvious by this [[https://youtube.com/watch?v=AVtZh3LP7dc Valentine's Day mini-drama]] in which it is revealed that Ibaraki-dōji was the one sending Shuten-dōji alcoholic chocolates instead of Momiji.
** Even though Hiromasa is clearly enraged at Ōtengu for having betrayed him and turned to evil, the former says to the latter that he still considers him his friend no matter what. That flute duet scene just ain't help.
** Upon learning that Sakura-no-sei is in love with a human, Momo-no-sei tried to prevent her from pursuing that romance. Even though this is out of concern that InterspeciesRomance would not go well (and [[StrawmanHasAPoint she's right]]), this can also be interpreted as [[GreenEyedMonster jealousy]]. Oh, and these two are apparently the best of friends and it is stated in Momo's in-game profile that she treasures Sakura more than anything in the world.
* IncestYayShipping: The Mujō brothers are frequently shipped together, thanks to the (probably unintentional) IncestSubtext in canon.
* NightmareFuel: Google Play Store places this game in the Horror genre for a reason. Many ''yōkai'', case in point [[CreepyChild Ushi-no-koku-mairi]] and [[LiteralManeater Kijo Momiji]], are bound to give you chills.
** Kurodōji's [[LaughingMad laugh]]. Or ''[[AxCrazy just]] [[CreepyChild Kurodōji]] [[CuteAndPsycho himself]]'', period.
** Yōkinshi's Awakened form. [[http://newsimg.5054399.com/uploads/userup/1611/ertong_d45e1b2edb2dd8c756a5fc9e8ca23bdc.jpg No, seriously, look at him]].
* NoYay: Any pairings involving Aobōzu whose being a Buddhist priest requires him to be celibate. Not that this stops his fans from having imaginations anyway, thanks in part to his [[{{Bishonen}} appearance]].
** [[spoiler: [[FoeYay Kuro Seimei]] [[ScrewYourself and Seimei]], ''full stop''.]]
* ThatOneBoss: [[spoiler: The despicable, undefeatable abomination from Hell that is ''Kuro'' friggin' ''Seimei''. The dude himself isn't ''that'' strong, it's his band of supporters that are Sanbi-no-kitsune, Ōtengu and Yuki-onna that makes the battle against him qualify. And no, Kuro Seimei is ''not'' the FinalBoss, since the story does ''not'' end with him.]] Before that, the earliest That One Boss appearing in the game could be Ibaraki-dōji aided by ''three'' Shuten-dōji, good grief, at the end of chapter 11.
* ShipsThatPassInTheNight: The Ōtengu/[[OneShotCharacter Yōko]] pairing is surprisingly popular within the fandom even though plot-wise they have never met.
** Since only a handful of ''shikigami'' make appearances in the plot, pairings that involve those who don't tend to be this by default.
* SleepingWithTheBoss: Enma and Hangan are often shipped together.
* StoicWoobie: The more the story progresses, the stronger the desire to give Seimei a hug. How the fuck does he stay calm through all the shit he's faced — [[AmnesiacHero amnesia]], malicious forces causing one trouble after another, becoming TheScapegoat, [[spoiler: the bad guy's turning out to be himself but not really and [[EtTuBrute one of his friends']] [[TheMole turning out to be]] [[TheDragon serving]] a GreaterScopeVillain all along]]? [[spoiler: However, he's still not to be messed with when [[NotSoStoic he's]] [[BewareTheNiceOnes angry]].]]
* StrawmanHasAPoint: No matter how you look at it, Momo is completely right to prevent Sakura from continuing her InterspeciesRomance. Just look [[TheLostLenore how]] [[VengefulWidow it]] [[RoaringRampageOfRevenge turns out]]. After Sakura and her lover's ghost exchange some words, Momo "admits" that she is wrong… but ''how''?
* TearJerker: The second chapter.
* TheissTitillationTheory: Or how else would you explain how [[MrFanservice Yasha]]'s {{Stripperiffic}} post-Awakening outfit hasn't fallen off yet?
* ThemePairing: Susabi and Ichimokuren [[ShipsThatPassInTheNight never have any indication that they have interacted]], yet the pairing is popular, probably because a/ they're both [[PhysicalGod gods]] and b/ they are both accompanied by dragons.
** There are also fans who ship ''any'' SSR together regardless of canon ''just because'' they're SSR.
* ToyShip: Shirodōji and Kurodōji. The former's being a LivingEmotionalCrutch for the latter leads to some very adorable moments in the story.
* ViewerGenderConfusion: It is very easy to mistake Shirodōji and Kurodōji for girls until you hear their voices. There have also been fans who mistake [[LongHairedPrettyBoy Yōkinshi]] for a female character.
** [[CreepyCrossdresser Tamamo]] [[DudeLooksLikeALady no]] [[CrossdressingVoices Mae]], ''full stop''.
* WTHCastingAgency: Many fans have this reaction towards Creator/TakehitoKoyasu in the role of [[AnimateInanimateObject Chōchin-obake]].