[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/AoNoExorcistAnime_7920.jpg]]
[[caption-width-right:350:[[AntiAntiChrist The son of Satan]] and his [[TrueCompanions allies of justice]], [[MyFriendsAndZoidberg and]] [[WildCard Mephisto]] in the [[NiceHat top hat.]]]]

->'''Mephisto:''' But Rin, you have chosen a path full of thorns. A sad and painful fate awaits you... so much it will make you wish you had died here.\\
'''Rin:''' I don't care! I'm no longer human, but I'm not a demon either. I can only move forwards! ''I'll become an exorcist!''

''Blue Exorcist'', also known as ''Ao no Exorcist'', is an action comedy fantasy {{shonen}} {{manga}} with MultipleDemographicAppeal by Katou Kazue.

The story revolves around Okumura Rin, who starts out as a boy who is somewhat of a {{delinquent}} and as such gets into fights. He is usually at odds with his [[HappilyAdopted adoptive]] father, Father Fujimoto Shirou. One day while Rin goes to a job interview that Fujimoto 'encouraged' (read 'encouraged' as 'threw objects at') him to check out, he starts seeing little black 'bugs' and runs into a group of kids he fought the other day. To his surprise, one of the kids is [[DemonicPossession now a demon]]. Just as the demon is about to kill him, [[HellFire blue flames]] surround his body and burn his attacker. The demon realizes that Rin is the one he has been searching for: the [[HalfHumanHybrid son]] of {{Satan}}.

While Rin is in total shock and disbelief, Fujimoto Shiro comes and exorcises the demon. He then describes how demons come from a world called Gehenna and can cross into our world (Assiah) by possessing a vessel of sufficient strength. He takes Rin back to the house to give him a sword that seals his demon powers and see him off, but unfortunately, Rin thinks it's all bullcrap and accuses Shiro of throwing him out. Double unfortunately, [[TheCallKnowsWhereYouLive Satan decides to come in and say hello]]. Rin saves himself by drawing the sword, but [[DeathByOriginStory Father Fujimoto dies in the process]]. After the funeral, he is confronted by Mephisto, a member of the True Cross Order and a friend of Shiro's, and demands to join the True Cross Order and become an Exorcist.

The series follows Rin's quest to become the strongest exorcist and to defeat Satan. It also sidetracks onto secondary characters, namely [[BigLittleBrother Okumura Yukio]], [[CuteClumsyGirl Moriyama Shiemi]], [[ActionGirl Kirigakure Shura]], [[TheRival Suguro "Bon" Ryuuji]], [[ChivalrousPervert Shima Renzou]], [[TeenGenius Miwa Konekomaru]], [[IceQueen Kamiki Izumo]] and [[TheVoiceless Takara]].

A 25-episode anime adaptation with music by Music/HiroyukiSawano began airing on [[Spring2011Anime April 17, 2011]]. You can find it on [[http://www.vizanime.com/blue-exorcist Viz Anime]], Crunchyroll (free simulcast) and Hulu. The English dub can be seen on [[http://www.neonalley.com/ Neon Alley for the PS3 as of October 2, 2012.]] A [[TheMovie movie]] came out in December 2012 and the anime is a member of the ''Creator/{{Toonami}}'' block as of February 23, 2014.


----
!!This series provides examples of:

* AcademyOfAdventure: True Cross Academy, with demons showing up on the grounds, mysterious, possibly villainous teachers, and the like.
* AdaptationExpansion: The first half of the anime, before it diverges onto an anime-original story.
* AddedAlliterativeAppeal: Arthur August[[SpellMyNameWithAnS (e/o)]] Angel.
* AdultFear: Your adopted child is the biological son of the most powerful demon in existence and if you let your guard down for even one minute said demon will possess you and use your body to literally drag him down to hell.
** Your daughter has become a shut-in who only cares about her deceased grandmother's garden, and on top of that she can barely move due to demonic growths in her legs.
* [[AllMythsAreTrue All Religions Are True]]: The series mostly focus on Christianity, mainly [[AnimeCatholicism Roman Catholicism]], but there have been demons inspired by Shintoism, [[WordsCanBreakMyBones Fatal Verses]] from Buddhist sutras (at least Zen Buddhism anyways), even Greco-Roman minor deities.
** It was also said in the manga that almost all demons found in other religions are true, Satan just happens to be the lord of them all.
* AndTheAdventureContinues: In the anime at least.
* AnimalBattleAura: The hilarious [[TheRival Rin vs. Bon]] scenes in the anime have these. [[TigerVersusDragon Rin is a golden tiger, Bon's a green-scaled Chinese dragon.]]
* AnimalMotifs: Konekomaru Miwa and Mamushi Hojo.
* AnimeCatholicism: The series uses Bible verses as ''spells''. Combined that [[BadassPreacher almost every preacher met is that of the badass variety,]] it can arguably be considered the TropeCodifier.
* AntiAntiChrist: Rin is a good-hearted guy who wants to KICK SATAN'S (read: daddy's) ASS.
* AsTheGoodBookSays: Certain Bible verses can be used to banish demons. The trick is knowing which Bible verse is required for which demon. One classmate, trapped by a ghoul, only knows that something from the Book of John can banish it. He recites the ''entire thing from memory'', and it turns out it's the ''last'' line that banishes the ghoul.
* BarrierMaiden: Suguro Ryūji (Bon) in the fight against the Impure King. Made fun of by Rin because the role is usually reserved for girls.
* BeachEpisode: 11th episode of the anime, and Chapter 35 in the manga.
* BedmateReveal: After the battle with the Impure King,[[spoiler: Rin wakes up to find Shiemi sleeping next to him.]]
* BerserkButton: Surprisingly, [[spoiler: Takara]] manages to push [[spoiler: Konekomaru's]], sending the latter into a yelling spree. Resulting in a GetAHoldOfYourselfMan from [[spoiler: Bon]].
* {{BFS}}: Angel's sword isn't huge, but it's definitely the same thick "chopper"-type as [[VideoGame/FinalFantasyVII Cloud]] and [[DGrayMan Allen's]].
* BigDamnHeroes: Suguro Tatsuma pulls off the beginning of one at the end of chapter 24. [[spoiler:It backfires]].
* BigOlEyebrows: Kamiki Izumo, causing her to get the nickname Eyebrows.
* BigWhat: Bon in Chapter 28 when told [[spoiler:by Rin to ride on the giant [[FunSize Kuro/Blackie]].]]
* {{Bishonen}}: Angel is intentionally drawn in this manner. [[spoiler: Lucifer]], too. Lampshaded by [[spoiler: Gedouin, who compares his appearance to a shining star, complete with the sparkles]].
* {{Bizarchitecture}}: The True Cross Academy.
** The Impure/Defilement King (a demon in the Decay domain) takes the form of a giant city.
* BodyHorror:
** Demon mashou boils. And demonic possession/attacks. So much blood...
** Then came Chapter 32. [[spoiler:[[ManipulativeBastard Toudou]] can [[FromASingleCell regenerate]] with Karura's power. He just likes to regenerate his hands and mouth first, to Yukio's abject horror]].
** In chapter 56 there are [[spoiler:uber-zombies created by Dr. Gedouin]] vary in just how bad they are but one has a stack of noses running up one side of the body, ear-covered arms, eyes on the shoulders, a huge mouth, multiple arms on one side of the body, what look like smaller faces on the hips.
* BreakTheHaughty: When Izumo's confidence fails, her familiars try to kill her.
* BreakingSpeech: To Yukio, from an exorcist who turned to TheDarkSide. [[spoiler:Apparently the guy fell behind his father and brother and after trying to live up to them, he resented them for it. [[ShutUpHannibal Yukio declares he's different.]]]]
** Following that conversation, [[spoiler: Saburota Toudou refined the speech, saying [[TheUnfavorite Yukio had no choice in his career path and he really feels he is just a tool made by his Father to protect Rin]], so Yukio must've sometimes hated his Father and brother for pushing this burden onto him. [[ShutUpHannibal Yukio then admits the guy is right, he hates and loves his brother. But then he says what he hates most of all is his own weaknesses in this matter. All while setting up a counter to trap Toudou.]]]]
** Further ramped UpToEleven when [[spoiler: Toudou [[FromASingleCell regenerates]] gruesomely and taunts Yukio, happily stating Yukio's admitted self-loathing is the first step in becoming a demon. After this guy had [[TheUnfavorite identified his insecurity]], strangled him, and then been ''exploded'' because of him, in the course of less than 15 minutes, [[RageBreakingPoint Yukio takes this hard]].]]
** When [[spoiler: Shima's]] preparing to leave with his Illuminati cohorts in Chapter 49, he takes a brief moment to thank the others for [[spoiler: trusting him for so long before saying farewell. Suguro didn't take it well.]]
** [[spoiler: Gale]] tries this on [[spoiler: Konekomaru]]. It works for a while, but they get over it.
* BreakingTheFourthWall: Chapter 44 begins and ends with Mephisto explicitly holding a conversation with the reader about the plot and the nature of human desires.
* BullyingADragon: Rin was bullied and called a demon throughout his childhood due to his SuperStrength and temper.
* CallingTheOldManOut: Rin to Satan. Bon to his dad. [[spoiler: The latter wasn't really called for though.]]
* CastOfSnowflakes: Notably, the only characters who look alike are related (Rin and Yukio, Mephisto and Amaimon), and even then they're easy to tell apart.
* ChekhovsGunman: The Video Game Dude and Bunny Rabbit Puppet Kid. [[spoiler:The Video Game "Dude" is really Kirigakure Shura, a [[UnsettlingGenderReveal big boobed]] Upper First Class Exorcist with a seal for a demonsword on her chest, who was Fujimoto's former student and has now become Rin's mentor. Bunny Rabbit Puppet Kid is actually Takara Nemu, a fully trained exorcist, with the same rank as Shura (Upper-first class), hired by Mephisto to act as a "moderator" for the cram school students.]]
* ChristmasCake: Shura does not react well to those who suggest she is NOT eighteen.
* ChurchMilitant: The True Cross Order, combined with a WizardingSchool.
* ContinuityNod: In Episode 19, Rin states how cooking is his only productive skill. Yukio mentions quietly how he said the exact same thing, which he did in the camping episode.
* CookingDuel: Rin and Ukobach have one in the anime after Rin inadvertently traipsed all over his territory (being the dorm kitchen).
* CoolDownHug: Fujimoto gives one to Rin in a childhood flashback when the latter goes berserk over another boy calling him a [[BerserkButton "demon"]] behind his back.
** In Chapter 26, [[spoiler:Shiemi gives one to Rin after he invokes IAmAMonster on her, telling her to stay away.]]
** And in the anime, [[spoiler: Shiemi gives him one in Episode 16 to stop his berserk mode.]]
* CoolMask: [[spoiler: Lucifer, because his face was blackened by illness. Said mask has been taken off in Chapter 56, and it's seen on a table beside his bed]].
* ConspicuousCG: The Gehenna Gate and "Messiah" (read: atomic bomb mockup) in the anime.
* CrossoverCosmology: Quite a bit of Buddhist and Shinto is mixed in as well.
* CrystalPrison: In the anime, [[spoiler: Rin gets this treatment]] when the [[spoiler: True Cross order find out that he's the son of Satan.]]
* CustomUniform:
** Angel has an extremely fancy uniform.
--> '''[[AntiAntiChrist Rin:]]''' ...when I become Paladin, I won't be dressing like a fashion ''reject''.\\
'''[[{{Jerkass}} Angel:]]''' [[ComicallyMissingThePoint You misunderstand. I had this outfit tailor-made.]]
** None of the main characters wears their uniform like the others. They use shirts, t-shirts, over the knee socks and wear ties or ribbons in their own way to stand out from the rest, according to their personality.
* CurbStompBattle: Not as obvious in the manga, but the anime version of [[spoiler:Rin with his sword drawn vs. Amaimon]] is a huge one in the former's favor. You can clearly see how the latter went from stomping the entire cast to barely keeping up the defensive. Also overlaps with NoHoldsBarredBeatdown. [[spoiler: In the manga: Rin vs. Amaimon in Gehenna was also heavily in Amaimon's favor. Mephisto arranged this so Rin would know that if he couldn't touch the seventh-toughest demon in hell he had no chance of going against their daddy.]]
** ''Shiemi'' of all people, delivers one to her zombie in Chapter 58.
* DarkIsNotEvil: Aside from the protagonist, there are plenty of "demons" around that simply want to exist and not bother anyone. Kuro is one of these.
* DarkLordOnLifeSupport: Lucifer, at least, before his BigEntrance.
* DemonicPossession: Any demon's only way into Assiah.
** Happens to Shiro Fujimoto. He is possessed by Satan [[DyingMomentOfAwesome until he kills himself]] [[PosthumousCharacter to save Rin.]]
** Happens to [[spoiler:Konekomaru Miwa by Gale and Yukio by Satan]] in the anime.
** [[spoiler: Izumo's]] mother became possessed by [[spoiler: the Nine-Tailed Fox]] as a result of her depression.
* DemonLordsAndArchdevils: The Eight Demon Kings.
* DemonSlaying: [[CaptainObvious The exorcists.]]
* DevilButNoGod: But there is a Bible.
** Recited Christian scriptures assume there is a god. Recited Buddhist scriptures assume there was Buddha. Maybe it's all a matter of faith and [[AllMythsAreTrue all religions are true]]?
** If Satan is the Ultimate Evil in the underworld, could there be a Uber-God who is the ultimate good?
** One anime episode has the cast baking a cake for a classmate. Rin accidentally bakes a ''Christmas'' cake first. When the class realizes the mistake, they drop it off at Mephisto's office for him to eat instead, at which point he gleefully hangs a lampshade on the whole absurd situation.
* DyingMomentOfAwesome: Fujimoto's final scene, as pointed out in the second chapter:
-->'''Yukio:''' What were his final moments like?\\
'''Rin:''' He was awesome.
* ElaborateUniversityHigh: True Cross Academy owns this trope and takes this UpToEleven, since it also has an ''amusement park'', a freaking ''town'' based around it and lots of secret passages due to being an important base for the True Cross Order in Japan. And everything is BIIIIIG! Possibly {{Justified|Trope}} as [[{{Otaku}} Mephisto]] is the headmaster.
* EnergyAbsorption: If one uses an elemental attack on a demon of the same element, if the attack is not strong enough the demon will absorb it.
* EveryoneKnewAlready: [[spoiler: Mephisto being a demon and one of Satan's sons]].
* EyeObscuringHat: Donned by Lewin Light (a.k.a. Lightning)
* FaceOfAThug: Rin and Bon. Bon's father was said to have one as well.
* MrFanservice: [[TroubledButCute Rin]] and [[{{Bishounen}} Yukio]].
* FaceHeelTurn[=/=]WellIntentionedExtremist: [[spoiler:Bon's serpent-wielding relative, who cannot stand that the exorcists are allowing the son of Satan to live.]]
** [[spoiler:Renzou Shima is revealed to have joined the Illuminati before entering True Cross Academy and reveals his true colors in Chapter 48]].
* {{Familiar}}: Strong exorcists have 'em. Rin acquires Kuro/Blacky, Shiemi has Nii-chan.
** Izumo has, not one, but two of 'em.
** Arthur Angel's sword talks to him [[PreAsskickingOneLiner just prior to battles]], usually an admonishment about how he's working too hard.
** Shima has one [[spoiler:much to the surprise of Izumo, not to mention the audience. Not only is Yamantaka an incredibly powerful High-Level-Myo-O Demon, but according to Shima it's been his familiar since he was a child.]]
* FanBoy: Played straight with [[spoiler: Gedouin]] to [[spoiler: Lucifer]], complete with sparkles and delusional fantasies. [[spoiler: Lucifer]] seems to ignore this.
* FangsAreEvil: The demons have these, along with PointyEars.
* FantasticRacism: [[spoiler:When Rin's friends find out he's the son of Satan, things get... ''awkward''.]]
** This trope is subverted in that it's not the fact that he is [[spoiler: part demon that they hate. It's that he's part ''Satan'' that gets to them.]]
** Subverted again, at least in the matter of Bon. [[spoiler: Turns out most of his anger has to do with Rin deciding to shoulder such a burden secretly by himself, [[{{Foreshadowing}} something that Bon has complained about before]].]]
*** Also subverted with Izumo and Shiemi. [[spoiler: Izumo didn't really give a damn about it , while Shiemi was more hurt by the fact that Rin, her first friend, didn't tell her something so important. Shiemi, being the FragileFlower she is, took it a little too personally..]]
*** Subverted as well with Shima [[spoiler: who, while definitely being freaked out by Rin being the Son of Satan thing, was more worried about how troublesome being around Rin would be. After the two [[FriendshipMoment ate dinner together]] Shima realized that Rin was a genuinely good person and that it would "be more troublesome trying to avoid him".]]
** Played completely straight and justified in Konekomaru's case though. [[spoiler: His entire family was killed on the Blue Night and having as much resentment against Rin as he did was only to be expected, and when he finally gets over it, the [[FriendshipMoment Friendship Moment]] between the two is pretty friggin heartwarming.]]
** While most of the examples of this trope are subverted as listed above, the anime adaptation plays this trope completely straight once Rin's friends find out.
** Angel and Neuhaus play this trope completely straight - while other exorcists don't mind demons that aren't actively hostile or harmful towards humans, Angel hates demons in general and never has anything nice to say to Mephisto or Rin despite their fight against Satan while Neuhaus[[spoiler:, like the Cram School students,]] hates any spawn of Satan
* FantasticRankSystem: The Exorcists have one. See the trope page for details.
* AFatherToHisMen: Bon's dad. Whose name, for the record, is Suguro Tatsuma.
* FireballEyeballs: Rin and Satan have these in various color pages. [[spoiler: In Chapter 30, when Yukio was about to be killed by [[ManipulativeBastard Toudou]], he got these for a few pages.]]
* FiveManBand: The Exorcist Cram Students form this and is almost lampshaded by Konekomaru's advice on how everyone could improve in order to become a better team.
** TheLeader: Rin, the headstrong and hotheaded protagonist.
** TheLancer: Bon, the equally headstrong but more level-headed rival for Rin.
** TheSmartGuy: Konekomaru,the team strategist and even figured out everyone else's weakness and how they can be overcome.
** TheBigGuy: Renzou, who has lot of physical potential that he is wasting and should be trying to be a knight meister instead of an Aria.
** TheChick: Shiemi, the only one capable of calming down a berserk Rin and focuses on protecting or healing her friends instead of fighting.
** SixthRanger: Izumo, who tries to keep her distance from the group and would rarely help them without being forced in some way at first.
* FlamingSword: Kurikara, since it currently contains Rin's blue flames.
* FoolishSiblingResponsibleSibling:
-->'''Shiemi:''' You look like the older one!\\
'''Yukio:''' Yes, it is easy to mistake.\\
'''Rin:''' ''[twitches]''
* {{Gainaxing}}: Shiemi in the anime while wearing the True Cross Academy uniform. The guys don't miss seeing it at all.
** It's [[GagBoobs no wonder once Shura comes in]], she is the next to sport gainaxing.
* GeckoEnding: Around episode 15 the anime splits from its source material to make [[AlternateContinuity an original storyline]] so the season could have a proper [[AndTheAdventureContinues "ending"]], since it OvertookTheManga.
* GetAHoldOfYourselfMan: [[spoiler: Bon]] finds himself doing this (nonviolently) for [[spoiler: Konekomaru]] who just had his BerserkButton pushed by [[spoiler: Takara]].
* GoodThingYouCanHeal[=/=]HealingFactor: [[spoiler:Angel ''chops Rin's foot off'' to control him during his "trial", knowing he'll be fine. Shura and even the online translator are disgusted.]]
* GratuitousGerman: Aside from Mephisto's Eins Zwei Drei, the manga has now "Das stärkste Gefängnis".
* [[GratuitousForeignLanguage Gratuitous Polish]]: [[spoiler: "Nie popuszcz... takiego, powi...zanego z Szatanem"]] in Episode 20. Not only is it written incorrectly, but also one of characters translates it as [[spoiler: "Satan's kin must die"(lit. "Potomek szatana musi umrze...")]]
* HalfHumanHybrid: Rin of course. [[spoiler:Although, apparently, there's a lot of demon-blooded exorcists.]]
* HarmfulHealing: How Yukio exploits a Zombie Chimera's healing factor. [[spoiler:It absorbs whatever is around it as it regenerates so he kept shooting it down to the ground so that it tried to absorb the alloy. It pinned itself to the floor permanently.]]
* HeWhoFightsMonsters: The trope-naming passage is quoted in reference to [[spoiler: Rin and Yukio]]. Further noted that this is a problem for most Exorcists who could become demons because of their inner hatred or repressed feelings.
* HolyBurnsEvil: Holy water does this to demons. It hurts Rin as well, but not as much.
* HotForStudent: Yukio to Shiemi. Though really they're about the same age.
* HotTeacher: Yukio, at least to Shiemi.
* HumansAreSpecial: Why Mephisto's on the Exorcists' side: "[[TakeThatAudience The shameless greed the Japanese have for entertainment is spellbinding!!]] [...] The imaginations and creations of human beings have as much potential as the magical powers of demons..."
* HypocriticalHumour: Mephisto, in Episode 6.
-->'''Rin:''' But why the hell does a school cafeteria need first-class food?\\
'''Mephisto:''' Food is culture! Experiencing the highest-end food will make your lives fuller! ''[opens a cup of instant ramen and eats it]''
** But then again, there ''is'' a bit of FridgeBrilliance in that. Mephisto [[spoiler:is [[ReallySevenHundredYearsOld actually more than 200 years old]] and, knowing his love of culture, has probably ''already'' experienced all of the "highest-end food." Now he just wants to sit back and eat ramen. Nothing hypocritical about that.]] Pre-FridgeBrilliance, the scene is still an example though.
* IAmAMonster: Rin says a variation of this in Episode 9.
-->'''Rin:''' [[HealingFactor My wounds have always healed quickly.]] And now I really am a monster.
** And then word for word in Chapter 26 [[spoiler: before Rin and Shiemi make up.]]
* IHaveManyNames: "Mephisto" is just the latest, he's also been called [[TricksterGod Loki, Raven, and plain ol' Trickster]].
* TheIlluminati: [[spoiler: Are responsible for creating a Gate to Gehenna]].
* ImagineSpot: [[spoiler: Gedouin has a little fantasy about Lucifer hugging a much better looking version of him.]]
* JapaneseChristian
* KatanasAreJustBetter: Justified in Rin's case, as said katana seals his demon powers [[spoiler: it's also his demon heart]].
* KickTheDog: In Episode 2, Satan [[GrandTheftMe possesses]] [[spoiler:Rin's adoptive father]] (which has some [[BodyHorror unsettling side-effects]]) and promptly tosses the terrified kid into the [[HellGate gate to Gehenna.]]
* LawfulStupid: In the anime, Angel tries to kill Rin right after the kid saved the day by [[spoiler: defeating Amaimon.]]
** In Episode 20, Angel also stops Mephisto (with a firetruck) from saving several student hostages because he's under suspicion for performing acts forbidden by the Vatican. What, the moron couldn't give him another minute?
* LightIsNotGood: Arthur, the current paladin, exemplifies this trope. He even uses Light-based powers.
** And now the Demon King of Light has shown up; as the current BigBad.
* LimpAndLivid: Satan in Fujimoto's body, especially when he unleashes his disconcerting EvilLaugh.
* LoveTriangle: [[SiblingTriangle Both Rin and Yukio have a crush on Shiemi]]. Shiemi is completely unaware of this, though she cares for both of them greatly.
** [[{{Tsundere}} Izumo]] has a pretty obvious crush on Rin...who, so far, only notices Shiemi.
* LukeIAmYourFather: [[spoiler: Mephisto revealed to Rin that he and Amaimon are also sons of Satan (first and sixth, respectively).]]
* MakeThemRot: Astaroth, the King of Rot, and his kin. He has yet to make an appearance himself ([[AlternateContinuity except in the anime]], where he [[AdaptationalBadass posses the bully]] in episode 1 instead of the [[{{Mook}} nameless demon]] from the manga) but his "pet", the Impure King, was a major antagonist.
* MarshmallowHell: A half-example. In Chapter 10 Shura clutches Rin's head under her arm, giving him a faceful of her left boob. The other male students were envious. Strangely though, Rin doesn't really react.
* MeaningfulName: The new Paladin is called Arthur Angel. [[spoiler:Averted, as he mocks Shura and ''cuts off Rin's foot'' in trial.]]
** Shura means 'carnage/bloodshed'.
** Mamushi means 'pit viper' in Japanese.
** [[KindheartedCatLover Konekomaru's]] name can be translated to "circle of kittens".
** Rin, when written in kanji, can be read as phosphorus, an igniting compound in chemistry. In turn, phosphorus comes from the Greek word "light-bearer" and light-bearer is another term used to describe the fallen angel Lucifer.
** Subverted with Shima. His given name, Renzou, can mean "pure" or "honest". Shima is, of course, known better for his perverted antics and being a liar.
* MegaNeko: Kuro, Rin's demonically adorable familiar. In SleepModeSize he's a HeadPet.
* {{Miko}}: Izumo is quite proud of her heritage as a shrine maiden.
* MoreHeroThanThou: What the other students think Rin is playing up when he appears to be taking unnecessary risks by fighting alone ("Don't forget you have friends!") when he's actually hiding his demonic powers, especially from the guy who has a blood feud against Satan. Having everyone think that he either doesn't trust them or that he's being a [[BigDamnHeroes glory-hound]] is really annoying to Rin.
* MulticoloredHair: Shura, she has red hair that ends in bright yellow.
* [[MultinationalTeam Multi-Denominational Team]]: In addition to Catholic priests, there are Buddhist monks and Shinto mikos. Shiemi could count as a shaman/apothecary.
* MsFanservice: Shura's everyday appearance in a nutshell.
* MundaneMadeAwesome: The cooking battle between Rin and Ukobach.
* NamesToRunAwayFromReallyFast: Mephisto Pheles. [[http://en.wikipedia.org/wiki/Mephistopholes What does that sound like?]]
* NoEyeInMagic: [[spoiler: Konekomaru]] pulls this off quite nicely in chapter 43 by [[spoiler: taking off his glasses so the demon couldn't make him see his fear]].
* OccultBlueEyes: Rin Okumura has these (does fit the demonic type, being the son of {{Satan}} and all).
** And then [[spoiler: his sibling Yukio]] got them for a few pages after nearly getting killed by [[spoiler: Toudou. Toudou goes as far to say "those are not your eyes".]]
** In the manga it seems ''all'' of Satan's children are born with blue eyes, see AdaptationDyeJob for Mephisto. Rin and [[spoiler: Yukio]] are just notable for sometimes having their blue eyes change to look identical to those of Satan himself.
* OlderThanTheyLook: [[ManipulativeBastard Toudou]] got younger after [[spoiler:"swallowing" Karura. He started out as a middle-aged man and currently looks about eighteen.]]
** [[ReallySevenHundredYearsOld Mephisto]] and presumably Amaimon.
** Shura
* {{Oneesama}}: Houjou Mamushi to her sibs.
* TheOnlyOneAllowedToDefeatYou: [[spoiler:Lucifer outright refuses to allow Yukio or Rin come to harm at first because Rin is for their father to defeat]].
* {{Otaku}}: Mephisto. His room makes [[SpiritedAway Yubaba's baby's nursery]] look like a bare cell.
* OurDemonsAreDifferent: The humanoid ones have elf ears and tails. The other ones range from foxes, ghoulish-sewn-together-bodies, cats, plant... things, anthropomorphic phoenixes, and giant fungus buildings.
** OurAngelsAreDifferent: They're demons and are the kin of the King of Light [[spoiler: Lucifer]].
* OurZombiesAreDifferent: Zombies differ from Ghouls in that they are living humans being parasited on by demons, craving flesh and requiring Head Shots to kill. [[spoiler:And even then they somehow became immortal due to all the experimenting with Tamamo.]]
* OvertookTheManga: At the time the anime aired, only 30+ chapters of the manga were even out.
* PimpDuds: Mephisto Pheles.
* PlayingWithFire: Rin's flame.
* PowerLimiter: Rin's katana is a limiter to his demonic power. When sheathed the only things that remain are slightly pointy ears and a tail. When he takes it out--all hell breaks loose around him. [[PlayingWithFire Quite literally]].
** All powerful demons seem to try to have this in place, or at least when they come to Assiah so they don't damage or destroy their hosts, since they need to hide their "Demon Heart" which acts as both their [[AchillesHeel major weak point]] and what lets them access their [[OneWingedAngel true form and all of their powers]].
* PossessionBurnout: Anyone possessed by Satan.
* PosthumousCharacter: Fujimoto Shiro, who adopted and raised [[AntiAntiChrist Rin]], is later developed to be, not only in the church of badass preachers, but THE BadassPreacher.
* PrimalStance: Rin in his first confrontation with Amaimon.
* PowersViaPossession: Konekomaru gains these briefly when he [[spoiler:is possessed by Gale in Episode 17.]]
* RantInducingSlight: Takara draws this response from, of all people, Konekomaru when he [[spoiler: reveals that he is actually a prodigy exorcist, and a second year at that.]]
* TheReasonYouSuckSpeech: [[spoiler: Konekomaru]] soundfully delivers this to EVERY SINGLE ONE of his classmates, in the middle of a battle, no less.
* ReptilesAreAbhorrent: Bon's female cousins have snake tattoos to go with their serpent familiars, not to mention HellishPupils. And they certainly act like a bunch of {{smug snake}}s to their other relatives. [[spoiler: One of them turns traitor. But this is a subversion, as she was doing so in response to the perceived threat of Mephisto concealing the Eyes of the Impure King and keeping the son of Satan alive.]] Amaimon also has an alternate, more demonic form which has some lizard aspects to it when he unleashes his [[OneWingedAngel true power]].
* RestrainingBolt: The ring on Rin's tail seems to serve as one: when Shura begins to recite certain verses, it quickly drains him of his power.
* RevengeByProxy:
** Neuhaus, a survivor of the "Blue Night" in which Satan went on a killing spree, took it upon himself to try to kill Rin, the son of Satan.
** [[spoiler: Konekomaru]] attempted to do this to Rin in the anime while [[spoiler: he is possessed by Gale in order to avenge his parents.]] Ultimately, though, he realizes that killing Rin won't bring back his parents, so he gives it up.
* RuleSixtyThree: Kato Kazue, the creator, posted on Twitter sketches she made of the [[https://pbs.twimg.com/media/BNsxCFDCIAAiPiC.jpg:large main]] [[https://pbs.twimg.com/media/BNsxMPtCEAAyP8c.jpg:large cast]] [[https://pbs.twimg.com/media/BNsxa_PCUAA54i3.jpg:large gender]] [[https://pbs.twimg.com/media/BNsyCN3CYAAcILA.jpg:large swapped]].
* SchoolClubFront: The Exorcists train the students exorcists in the academy under the guise of a "Cram-Class".
* ScrewTheRulesImDoingWhatsRight: [[spoiler:Bon's dad, in a flashback, helped Fujimoto escape with the Koumaken despite the law that all intruders to the sect who know about the Koumaken must be killed.]]
** Also when Shura orders Rin's classmates to [[spoiler:break him out of prison despite the Vatican's decision to execute Rin.]]
* SealedEvilInACan: The Eyes of the Impure King, an ancient demon so powerful that just these two eyeballs expel a flood of miasma.
** The Myou Dha sect used [[spoiler:''itself'' to seal the Impure King, so the Myou Dha was the can.]]
** At one point, there was a flame demon, Kurara, sealed in [[spoiler: Koumaken. It's since left. Koumaken's still a Can, since it contains Rin's demon powers.]]
** And then Kurara set up a partnership with [[spoiler: Suguro Tatsuma. Finally Toudou, now a major villain, has forced it to possess him, making him much more powerful. [[{{Bishonen}} Prettier, too]].]]
* ShipTease: A little, perhaps with a dash of FoeYay, with Mephisto and Shura in the manga. When [[spoiler:Shura tries to interrogate him, it at first [[http://www.mangahere.com/manga/ao_no_exorcist/v08/c034/15.html looks like she's flirting with him, and then she goes ahead and straddles him]]. He calls the view of her chest "a nice view" and eventually tells her that "it would be a pity if a beautiful woman like [her] died at such a young age." And, when she backs off and leaves the room, he muses, "how lovely" in a rather ambiguous fashion.]] She then concludes that Mephisto will [[spoiler:protect Rin from execution.]] Yeah. Theirs is an [[BelligerentSexualTension odd]] relationship...
* ShootTheHostage: When Shiemi is drained by a pansy demon, it uses her body as a shield. Yukio pulls out his gun, and the demon taunts he wouldn't shoot Shiemi. He does. The pansy demon freaks out and flees. Rin is reasonably pissed off, but Shiemi is fine in the end. [[SubvertedTrope Yukio reveals]] to Rin that he used red dye bullets, having no intention of harming Shiemi at all.
* ShotgunsAreJustBetter: Rin's dad uses one in episode two. To fight a hoard of demons. And does pretty well.
* ShoutOut: In Episode 19 of the anime, Paku and Izumo go to [[{{Working}} Magnaria]].
** gg subs included a disclaimer for Episode 24, stating: "[[Literature/GoodOmens NOTICE - Kids! Bringing about Armageddon can be dangerous. Do not attempt it at home.]]"
** In Episode 22, there's a forest spirit lord who takes the form of a giant boar, and who's hella angry at the exorcists for attacking its kin. [[Anime/PrincessMononoke Where have we seen that before?]]
** The third of the Seven Mysteries is a "ghost" (actually [[spoiler: the accumulated frustrations of many, ''many'' high school girls]]) who [[Literature/HarryPotterAndTheChamberOfSecrets sounds like she's underwater and haunts a fancy girls' toilet with an fountain-like central sink]].
** In the Anime Only, later episodes have Rin's right eye light up in blue flames - just like ''Franchise/BlackRockShooter''. Seems the fans weren't the only ones to notice the resemblance between them...
* TheShortGuyWithGlasses: Konekomaru to a T.
* SpellMyNameWithAnS: It been stated by the creator that The Paladin's middle initial is 'A' not 'O' like some fans has believed.
* StabTheScorpion: When confronted by his human brother about his existence, Rin draws his sword and charges... to kill a demon behind him. "I am not low enough to fight my own brother."
* StandardFemaleGrabArea: This trope is pulled on Shura of all people, when Arthur Angel grabs her by the wrist from behind while they are fighting. A bit justified considering the wrist he was holding was connected to her sword hand and he had his own sword against her neck.
* TheStrategist: Konekomaru
* SuperStrength: How about headbutting a giant cat-demon into submission?
* {{Stripperific}}: Shura could count as this. Kind of justified because she needs to have free access to her tattoos when she has to take something from their dimensional pockets... but not much.
* SoulJar: Rin's sword is also his "demon heart".
* TakeAThirdOption: Subverted initially when Rin first meets Mephisto. He offers that Rin either kill or be killed, and later jokingly adds that Rin could always kill himself too. Rin declines, and demands to be an Exorcist instead.
-->'''Mephisto:''' The way I see it, you have two options. You can either be killed by us, or you can kill us and run away. Or, of course, you could just kill yourself, and save us the trouble, so that's three options you have. So, which one do you choose?\\
'''Rin:''' Make me one of you. Make me an Exorcist.\\
'''Mephisto:''' Okay. Let's say that Satan's son ''could'' be an Exorcist. What would you do?\\
'''Rin:''' KICK SATAN'S ASS!
* TastesLikeFriendship: How Shirou (and later Rin) tamed Blacky--with special wine.
* TearsOfBlood: It happens to the people Satan tries to possess, especially on the Blue Night sixteen years ago. [[spoiler: [[DemonicPossession And it happens to Rin's dad]]]].
** This also happens to [[spoiler: Lucifer in Chapter 56]] when he strains himself too much.
* TechnicolorFire: The main character wields vivid ''blue'' fire, which in the series is the trademark of Satan. The title [[CaptainObvious represents this, of course]].
* TimeMaster: [[spoiler: Mephisto]]: "I am second in Gehenna's hierarchy, The King of Time, Samael."
* TimeStandsStill: When faced with [[spoiler:an expanding artificially created Gehenna Gate, Mephisto]] stops time around it, but notes it won't last indefinitely. They have only bought a few months to fix the problem.
* TitleDrop: From Chapter 33, summing up Rin's mission after he's demonstrated it by [[spoiler: defeating the Impure King and annihilating all its insidious spores more or less by himself]]:
--> '''Mephisto:''' It's the birth of a blue exorcist... whose self-imposed fate is to [[AntiAntiChrist kill his own comrades]].
* TrueCompanions: Rin and his classmates. [[spoiler: more so after they discover his secret, although in the manga it takes some time for them to get over it.]]
* {{Tsundere}}: Kamiki Izumo.
** Rin is a milder male version.
** Suguro Ryuji is too, but only towards Rin, who he can't stand and has a hard time showing gratitude for honestly. He's relatively nice to everyone else.
* UnPaused: In the manga [[spoiler: the cuckoo clock Mephisto made during Amaimon and Rin's second fight just kept Amaimon trapped in a pocket dimension where TimeStandsStill (since his HealingFactor was paused as well based on his burns) when Mephisto uses it to summon him to CurbStomp Rin it's clear Amaimon is under the impression that they are still in the middle of that fight.]]
* UseYourHead: This is step one for Rin in regards to calming down Kuro. Yukio has the appropriate [[http://static2.wikia.nocookie.net/__cb20110916063909/aonoexorcist/images/9/98/Ao_no_Exorcist_-_10_-_Large_16.jpg reaction]] to this.
* UnusuallyUninterestingSight: Nobody is concerned about Rin's [[FangsAreEvil fangs]] or [[PointyEars ears]] (and sometimes even his ''[[UpToEleven tail]]''!). WordOfGod is that it is "surprisingly complicated", and seems to rely on them [[FailedASpotCheck failing a spot check]] (if one ditches the chuff of Mephisto's rant on this point). Even exorcists aren't bothered, as there's a of number half-demons and even demons (like Mephisto) who are exorcists. Subverted with Rin's blue flames, since a) blue flames are Satan's signature power and b) can only be seen with those with a masho.
* WeaksauceWeakness: Rin's tail and his sword are direct connections to his "demon heart". Notice that we've never seen [[spoiler: Mephisto and Amaimon]]'s tails.
** As of Chapter 39, we finally get to see [[spoiler:Amaimon's tail]]. Unfortunately for Rin, [[CurbStompBattle he doesn't get to take advantage of it in a fight]].
** Then Chapter 49 brings with it the introduction of [[spoiler: Lucifer, the King of Light, leader of the Illuminati, and a Demon King strong enough, even when weakened, to ward off ''Mephisto''.]] He makes absolutely no effort to hide his tail.
* WhamEpisode: Chapter 48. Holy SHIT.
* WhatTheHellHero:
** "Why the hell is [[spoiler: Satan's kid]] at our school!?"
** Also, the online translator is shocked that [[spoiler:[[ThePaladin Angel]] ''chopped Rin's foot off'' to hold him still during his "trial".]]
* WordsCanBreakMyBones: Most lesser demons have a line in the scriptures that exorcises or binds them, as demonstrated by Suguro Ryuji and the Bible.
* ZettaiRyouiki: Part of the girl's uniform, but notable on [[TheChick Shiemi]], [[{{Tsundere}} Kamiki]], and [[MsFanservice Shura.]]
** Also when [[ItMakesSenseInContext the boys cross-dressed to get into a girls' washroom.]]
----