[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/Amatsukix_6565.jpg]]

->''Soon you will have to choose. Will you destroy this world, and return to your own? Or will you protect this world, and become its master?''

Tokidoki [[OnlyKnownByTheirNickname "Toki"]] Rikugou is an OrdinaryHighSchoolStudent who, after [[BookDumb failing history]], is forced to visit an incredibly high-tech new virtual reality museum modelling the [[JidaiGeki Edo Period]] for make-up work. As he explores the building, he gets separated from his friends and suddenly encounters a tiny [[TheFaceless masked figure]] riding a huge [[MixAndMatchCritters monster]], which cryptically asks him about the meaning of reality. The monster then attacks, [[EyeScream leaving Toki blind in one eye]] and destroying his VR goggles...but not the simulation. As it moves in for the kill, a [[ActionGirl beautiful swordswoman]] named Kuchiha shows up to slay the monster, right before Toki faints.

Toki wakes to find none other than his [[JapaneseDelinquents notoriously violent classmate]] Kon Shinonome, although looking very different from before. Kon explains that the masked figure is a malevolent [[{{Youkai}} demon]] known as the Yakou, that Toki is now [[FishOutOfTemporalWater trapped in the Edo Period]], and that Kon himself was also attacked and trapped there two years earlier -- despite the fact that Toki remembers seeing him at the museum only a few hours ago. There is no known way to return home, so Kon and Kuchiha, who happen to be acquainted, decide to take care of Toki for the time being.

It's not long before we discover that, in this world of humans and demons where everything is written into [[BecauseDestinySaysSo Heaven's Net]] by the PowersThatBe, Toki is unique. As an outsider, [[ImmuneToFate he's the only one whose destiny has not been predetermined]] -- thus giving him the power to [[RealityWarper change the fates of others]]. Toki then gets caught between various warring factions, some seeking to destroy the world, others to protect it, and all determined to use the "Unwritten Page" to their own advantage.

An manga by Shinobu Takayama that ran from 2002 to 2017 in the {{josei}} magazine ''Monthly Comic Zero Sum'', and was adapted into a ThirteenEpisodeAnime in 2008. While it's often overlooked for its [[JigsawPuzzlePlot extremely complicated storyline]], ''Amatsuki'' has amazing artwork, [[ShownTheirWork accurate and detailed references to Japanese history and folklore]], and a fleshed-out cast of characters.
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!!Provides examples of:

* AdaptationDistillation: Probably in an attempt to make it less confusing and more generally appealing, the anime removed (in its first season) all the things going on in the real world. This effectively deals with the massive MindScrew that shows up later in the manga.
* AllJustADream: [[spoiler:It's implied that the events in Amatsuki could just be Toki and Kon experiencing lucid dreams at the hands of a crazy scientist and some mysterious mind-control device.]]
* AlternateSelf: Almost everyone in Amatsuki[[spoiler: is either based on someone from the real world or actually is that person trapped in virtual reality. Most have no knowledge of the real world, and bear only subtle resemblances to their other selves, in one case even switching genders.]]
** Bonten[[spoiler: - Midori]]
** Ginshu[[spoiler: - Urushibara. Unlike most of these examples, Ginshu has their own heroic personality and only takes on Urushibara's physical appearance. This is because Urushibara is not inserted into Amatsuki's brain farm.]]
** Shinshu[[spoiler: - Lily]]
** Utsubushi[[spoiler: - Hashita]]
** Ainezu[[spoiler: - Aonibi]]
** Susutake[[spoiler: - Wakasa]]
** Tsuyukusa[[spoiler: - Fukagawa. Fukagawa is mostly a post-story character, a symbol that Tsuyukusa didn't get lost or killed when Urushibara's Amatsuki was shut down.]]
** Iemochi[[spoiler: - Chitose. ]]
* AnguishedDeclarationOfLove: [[spoiler:Toki to Kuchiha when she is about to be dragged down to Hell.]]
* AntiHero: Pretty much anyone can qualify for this, but mostly Bonten.
* ArtEvolution: The characters have steadily become softer and more fluid. Early artwork is almost unrecognisable compared to what was drawn recently.
* AuthorAppeal: Takayama Shinobu really loves drawing her characters in fashionable modern Japanese street clothes on cover pages, with plenty of hair accessories (especially on boys). Most artwork also seems to depict the characters stuffing their faces with food. Toki has worn fox-masks on a number of occasions. And then there's Kon and his OralFixation...
* {{Backstory}}: Everyone, especially when it comes to a DarkAndTroubledPast.
* BadassBiker: Suoh, being a courier.
* BreakingTheFourthWall: Happens occasionally in the manga. In the {{omake}} and drama [=CD=]s, there is NoFourthWall. Period.
* BreakTheCutie: [[spoiler:Tsuruume after the reset.]] This trope also applies to Toki himself after he [[spoiler:loses Kuchiha and Kon]] as a consequence of his own decisions, and if we get to count the past, [[spoiler:Hiwa/Bonten, Shinshu, and Ginshu.]] Though one might argue that [[spoiler:Ginshu]] was broken from the start.
* BrotherSisterIncest: It would seem that Kurotobi is straight... if only, apparently, for his sister.
* CastFullOfPrettyBoys: Plenty of good-looking male characters for the fans to enjoy, both human and non-human.
* ChekhovsGun:
** Toki's eyepatch, which he [[spoiler:gave to Kon before the latter lost his memories]], and which Kon finds by accident, causing him to question whether or not Toki was telling the truth about them [[spoiler:being friends]].
** The jellyfish created from Toki's soul in Edo Castle [[spoiler:becomes Tsuyukusa's new vessel]].
* ChekhovsGunman:
** Kon, who turns up right at the beginning and later appears in Amatsuki as a major character. Also Ainezu, briefly introduced as a nameless doctor and then forgotten, only to turn up much later as a member of the infamous Divination Bureau.
** Imayou and [[spoiler:her master the tree spirit, who was reborn,]] show up to help rescue Tsuyukusa from the centipede demon poisoning the forest.
** Kosen, a young monk from Sakagami Shrine introduced in a side story, [[spoiler:is revealed to have been turned into Kon's CloneByConversion after the reset]].
* CoolMask: Benitobi and Suzume's demon masks.
* [[spoiler:CosmicRetcon]]: Teiten makes it so that [[spoiler:Ginshu never existed]] and many human characters [[spoiler:never met Toki either, including Kon]].
* CrashIntoHello: Heihachi and Tsuyukusa... in an odd way.
* DeadlyRinger: The demonic Yakou carries around a little bell that [[BrownNote drives anyone who hears it insane]].
* DefrostingIceQueen: More than half the cast, most notably Kuchiha, and to a certain extent, Tsuyukusa.
* DontTryThisAtHome: When Toki headbutts Kanzo and gives himself a concussion.
* DynamicEntry: Lucky Kuchiha gets to make lots of these.
* ElegantGothicLolita: Lily, since Shiraai really loves those sorts of clothes.
* EnemyMine: Various degrees of this occur between the main characters, the demons and the Divination Bureau. [[spoiler:Then ''everyone'' teams up to take on the Yakou and Heaven itself.]]
* FakeMemories: Teiten has the ability to rewrite Heaven's Net to his liking, thereby altering everybody's memories and history.
** Turns out that [[spoiler:Kon Shinonome]] also has this ability.
* {{Fanservice}}: Kuchiha at one point pulls her shirt away, revealing her chest... it was meant to scare off some drunk samurai, but not the point.
** Kon has a habit of wearing very loose-fitting clothes, or going shirtless altogether.
* FirstNameBasis: After they hang out together for awhile, Toki eventually drops the [[{{Honorifics}} honorific]] on Tsuyukusa's name. Tsuyukusa, however, is [[{{Tsundere}} very taken aback]] by this and [[HeyYou deliberately avoids calling Toki by his first name]] until Chapter 58.
** Toki switches to first names with Kon since the latter insists, though Toki takes a while to adjust.
* {{Flashback}}: About one third of the story... and just about half of the plot.
* GlamourFailure: When [[spoiler:the real Kon]] unveils his doppelgänger's identity, [[spoiler:Kosen's]] YouthfulFreckles momentarily reappear.
* GreyAndGrayMorality: Everyone is fighting for unique and what they believe to be legitimate reasons.
** However considering he's a [[NatureSpirit tree]], I think we can let him off on that one.
** Shiraai and Aonibi appear to have blue hair, and Wakasa's is bright pink (though he probably dyed it). Also PrettyBoy Ginshu had reddish hair before his [[spoiler:UnwantedRevival]].
* HilarityEnsues: Even the most depressing situations can turn hilarious at a moment's notice.
* HostileShowTakeover: In the {{omake}} comics and drama [=CDs=].
* HomoeroticSubtext: Numerous instances. Including but not limited to Kon/Toki, Ginshu/Bonten ([[AmbiguousGender if you consider it Ho Yay]]), and Toki/Tsuyukusa.
* HumansAreTheRealMonsters: While they may not be evil, none of the humans introduced so far are above manipulating everyone around them for their own benefit. But the demons have their bad points too, most of which are born of revenge against human actions.
* [[spoiler:InsideAComputerSystem]]: [[MindScrew Probably]].
* InterspeciesRomance: Ginshu and Bonten, [[HoYay if you like that sort of thing]]. Also Imayou and her master, possibly.
* IronicNurseryRhyme: [[https://www.youtube.com/watch?v=SlI90w1oHEE "Toryanse"]], a traditional Japanese children's song which is used to incredibly creepy effect, especially when the Yakou is involved.
* JigsawPuzzlePlot: Just continues to get more and more confusing as time goes by. Even over 100 chapters in, we still know very little about the main characters or the connection between Amatsuki and the real world. While there have been various hints, these are few and far between, and hard to fit together.
** Used symbolically at the end of Chapter 99, when the pieces "snap into place" for Toki.
* {{Josei}}: Although it gets mistaken rather often for {{Shonen}}.
* KidAnova: Despite appearances, Toki has proved to be awfully good when it comes to the lady types.
-->'''Bonten:''' He's got a way with women...\\
'''Tsuyukusa:''' He'll talk his way right into bed at this rate...
* KnowledgeBroker: Hashita, Shiraai, Aonibi, and Wakasa are all part of a spy organisation dealing in stolen IT.
* LaserGuidedAmnesia: [[spoiler:Pretty much the ''whole cast'', except Toki.]]
** [[spoiler:Bonten believes that absolutely everything Toki says is the truth, because, well, he's the Blank Page.]]
* LetsGetDangerous: Sure, Toki noticed sword calluses on Beni's hands, but it's a different matter when she's suddenly moving at super speed...
* LotusEaterMachine: A clam demon traps [[spoiler:Kanzo]] in an alternate childhood born of his secret desire to be free of [[spoiler:the Inugami]]. Toki and the others are also pulled in and have to find a way to wake him up.
** KillItWithFire: [[spoiler:Kanzo]], ostensibly to rid himself of any more weakness, sets the whole illusion ablaze and [[spoiler:boils the clam demon alive]].
* LoveTriangle:
** Toki-Kuchiha-Kanzo. Sort of.
** Also Kon-Toki-Kuchiha. Sort of.
* MadScientist: Urushibara is a truly terrifying example, bereft of morals and focusing most of his research [[spoiler:exclusively on children]].
* MarkOfTheSupernatural: Toki's red left eye, Ginshu's scaly skin, the bite marks on Kanzo's forehead.
* MeaningfulName: Practically everyone.
** "Amatsuki" is an abbreviation of the term "Amayo no Tsuki", which means "moon on a rainy night", i.e. something that cannot really exist. Bonten believes that the world of Amatsuki is an illusion.
** Midori Sensai's name is brought attention to in-story. Shiraai links the "thousand-year-old green" colour to a hypnotic, dreamlike state.
* MergedReality: The demons aim to achieve this... by devouring all humans and destroying Amatsuki altogether.
* {{Miko}}: There are many traditional examples at the Sakagami Shrine.
* MindScrew: The anime is for the most part fairly straightforward. The manga, on the other hand, quickly proves everything the characters originally believed to be false, and then rather than solve any mysteries it just keeps opening up more and more. [[spoiler:Things started to become set in stone approaching Chapter 100.]]
* MonochromaticEyes: Whenever Sasaki actually ''does'' open his eyes, they are [[MilkyWhiteEyes completely white]]. This also applies to Kurotobi and Benitobi, whose eyes are almost completely black.
* MoodWhiplash: The series likes to yoyo back and forth between heart-rending tragedy, ridiculous comedy, bursts of action, lengthy plot explanations, and friendship.
* MotorMouth: Toki in the drama [=CD=]s fits this trope to a T. Calm down, Creator/JunFukuyama!
* MrExposition: Kon mostly. Ginshu, Bonten, Kurotobi, Tsuruume, and Hashita tend to dabble as well when required. In fact, this trope applies to pretty much everyone except [[IdiotHero Toki]].
* MysteriousPast: All the main characters, though Kuchiha, Ginshu and Bonten have had theirs explained somewhat. Toki's is still fragmented and downright confusing, whilst Kon has virtually no backstory whatsoever.
* NiceJobBreakingItHero: Happens again and again and ''again'', since Toki has the powers of a god and no idea how best to use them.
* {{Ninja}}: Sasaki commands a whole group of them, two specific examples being Kurotobi and Benitobi.
* ObfuscatingStupidity: Ginshu is fairly effective with this in his/her entrance, but really peaks in the flashback "The Butterfly's Dream" when he/she first interacts with [[spoiler:Bonten.]]
** From the start Bonten doesn't hide his knowledge of the modern world, however it's not until much later that he reveals he also [[spoiler:knows the true identity of Teiten]].
** Turns out [[spoiler:Kon]] is the absolute master of this.
* OhCrap: After Toki stabs a mirror demon... and then it shatters and he realises he's about to get pelted by hundreds of shards of falling glass.
* OnlyOneName: Multiple, including anyone not human and generally the people associated with the supernatural.
** Invoked when Heihachi asks Kon why a regular guy like him has a family name, since only samurai and nobility had them in the Edo period.
* OrpheanRescue: The heroes must travel into an illusion of the hellish SpiritWorld (which is also a gateway to the past) to try and rescue [[spoiler:Kuchiha and the Shogun]].
* OurSoulsAreDifferent: Amongst other things... butterflies?
* ParentalAbandonment: Toki's parents didn't want him. Kuchiha is an orphan, as was Ginshu, and Tsuyukusa lost his only parental figure when he was young.
* ParentalSubstitute: Suoh and Chitose, who took care of Toki after he was sent away from home. Hashita also rescued Lily from her abusive father and officially adopted her.
* PosthumousCharacter: Suoh, who died under mysterious circumstances sometime before the start of the story. There's also Byakuroku, [[spoiler:although technically his soul lived on in Ginshu... until Ginshu dies, that is.]]
* PowersThatBe: The god Teiten, and to a certain extent the other members of Heaven's Seat.
* PronounTrouble: It's tough talking about the genderless Ginshu in English.
* PurelyAestheticGlasses: Kon, and Toki in a few colour spreads.
* RageAgainstTheHeavens: [[spoiler:Bonten wants to overthrow Teiten and put Toki in his place to stop the world being destroyed.]]
* SamaritanSyndrome: Toki is becoming prone to this. And it's already gotten him in trouble.
* SceneryPorn
* ScrewDestiny: The entire plot is driven by people trying to use Toki's power in order to change the fate that has been assigned to them.
* SexyBacklessOutfit: Bonten regularly wears one, accentuated by the fact that he never puts his haori on properly. Kon joins in on the second volume cover (see above picture).
* SlidingScaleOfSillinessVersusSeriousness: Amazingly so far the manga has managed to stay firmly in the middle, never having too much of one without the other to balance it out. The anime however was planted firmly on the Serious side of things.
* SpiritWorld: The demon paths connect the human world and the spirit world, allowing demons to travel huge distances in a matter of minutes. However, their world is implied to be a sinister place, the paths are deceptive and losing your way means being trapped forever in purgatory.
* SpotlightStealingSquad: Bonten's group have appeared on almost every cover since Volume 7, meaning that, aside from [[TheFace Toki]], few other characters take centre stage.
* SproutingEars: Particularly Kuchiha (which makes sense, since she's a dog god) and Susutake when he's being mischievous.
* SuperDeformed: Happens all the time in the manga, when characters tend to go chibi for absolutely no reason, other than comic relief.
* TeenGenius: Midori Sensai graduated university when he was about 14. Also, according to later chapters, [[spoiler:Kon is a highly tech savvy hacker]].
* ThemeNaming
** ColorfulThemeNaming: Very nearly all the characters are named after traditional Japanese colours used in painting and fabric dyes.
** FloralThemeNaming: As can be expected, several characters are named after flowers, like Ayame (iris), Kanzo (daylily) and Tsuyukusa (spiderwort). The chapters are also frequently given floral titles related to ''hanakotoba''.
** AnimalThemeNaming: Many names also have a double meaning as birds, such as Toki (ibis), Kurotobi (black kite) and Suzume (sparrow).
* TheRival: Toki to Kanzo and vice versa, when it comes to Kuchiha's affections. PlayedForLaughs more often than not.
* TrappedInAnotherWorld: Ah, but what is the nature of this other world? That is the question.
* TheTriadsAndTheTongs: Shiraai has family ties to them.
* TrueCompanions: Toki, Kuchiha, and Kon... and later, [[spoiler:Toki, Tsuyukusa, and Bonten. [[VitriolicBestBuds Kinda]].]]
* UnluckyChildhoodFriend: Momiji for Toki and possibly Kanzo for Kuchiha.
* WhamEpisode:
** Chapter 24 - [[spoiler:Ginshu's death and the CosmicRetcon.]]
** Chapter 81 - [[spoiler:It's confirmed that everyone in Amatsuki is an "avatar" of a real world "player".]]
** Chapter 95 - [[spoiler:There are two Kons. The Kon who lost his memories was actually a doppelgänger created by the real Kon, who's aware of Amatsuki's true nature and has powers similar to Bonten. The ending of Amatsuki's "plot" is also wholly dependent on Toki's decisions.]]
* WhatYouAreInTheDark: The mirror demon in the castle uses its ability to reveal demons' true forms and people's true nature to intimidate Bonten, Kon and Toki.
* WildCard: A lot of the characters work for this, but possibly Toki as the best example, since he will always choose to help people no matter the consequences.
* WouldntHitAGirl: Subverted because although Kon has no qualms assisting in the smackdown of Tsuruume, he doesn't actually hit her at any point, and Toki scolds him for fighting with girls.
* YearInsideHourOutside: When Toki is transported to Amatsuki, Kon has apparently been there two years already, despite Toki having seen him in the present time just ''minutes'' beforehand.
* {{Youkai}}: Called ayakashi in this case.
* NinetyPercentOfYourBrain: The "ten percent" myth is mentioned first in Chapter 48 by Urushibara, a crazy doctor trying to push the limits of the human body. It returns once Amatsuki's origins are explored.
** [[spoiler: Urushibara and Sensai Moegi maintain Amatsuki's resource-intensive artificial reality by overworking tens (possibly even a hundred or more) human brains to 100% capacity, ensuring that the AR never lags for any of the inhabitants.]]

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