History Characters / TouhouImperishableNight

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This page is for ''Touhou'' characters who debuted in ''Touhou Eiyashou ~ Imperishable Night''.
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[[foldercontrol]]

[[folder:Wriggle Nightbug]]
[[quoteright:170:https://static.tvtropes.org/pmwiki/pub/images/rsz_th08wrigglenightbug19.png]]

::''The Insect Of Light Crawling In The Dark''
::'''Wriggle Nightbug'''

-->''"...C'mon, I'll shoot first if you don't!"''

A firefly youkai with the ability to control insects.

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* {{Bifauxnen}}: Since she's one of the few characters who have short hair and wear pants, a lot of fanart likes to depict her as looking very boyish, to the point where most posts of her on Danbooru get the "reverse trap" tag. In fanon she's often depicted with a personality similar to that of [[Manga/RozenMaiden Souseiseki]].
* BoyishShortHair: Which contributes to her fandom portrayal as a {{Bifauxnen}}.
* ButtMonkey: As with a lot of minor characters, she is often depicted as being abused by the more powerful denizens.
* DynamicEntry: WRIGGLE KICK![[note]]To autocollect items in ''Imperishable Night'' you fly to the top of the screen and focus. Midboss Wriggle zooms in from the top of the screen with very little warning, so it's very common for a beginning player to die unexpectedly by colliding with Wriggle. This has [[MemeticMutation mutated]] into the WRIGGLE KICK![[/note]]
* HeartIsAnAwesomePower: Gathering and controlling insects may not seem too impressive, but think about how many freaking ''scary'' insects there are: acid spitting hornets, bullet ants, killer bees, etc. Not to mention the vast ''[[ZergRush numbers]]'' of insects. And according to ''Perfect Memento In Strict Sense'', she is capable of gathering a demonic breed of harvest mites - a kind of microscopic bug, whose bites are hard to detect and fatally poisonous.
* IncrediblyLamePun: She tells Reimu in ''Imperishable Night'' that's she's got some nerve not being bugged by her.
-->'''Reimu:''' [[LamePunReaction Was that a pun]]?
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=jstx6fQheCE "Stirring an Autumn Moon ~ Mooned Insect"]]
* LittleBitBeastly: Firefly antennae.
* TomboyAndGirlyGirl: Back-to-back bosses Wriggle and Mystia are often portayed as the respective tropes.
* WholesomeCrossdresser: This is on the ''other'' side of the {{Bifauxnen}}, a MemeticMutation that started with [[WordOfGod ZUN]] [[ItMakesSenseInContext confirming she is a girl]]. Fans went along with her dressing up as a guy.

[[/folder]]

[[folder:Mystia Lorelei]]
[[quoteright:170:https://static.tvtropes.org/pmwiki/pub/images/rsz_mystiain9.png]]

::''Night Sparrow Youkai''
::'''Mystia Lorelei'''

-->''"A professional doesn't choose their songs."''

A night sparrow youkai who loves to sing. Her singing causes night-blindness to those who hear it, which in-game shrinks the player's field of view. She currently runs a food stand that sells grilled lamprey.

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* BadassBoast: "All humans fear me in the darkness! If I wanted, I could call enough youkai here to eradicate every human in this land.", or "I'll show you the true terror of darkness!" It's all empty bluster, though. And she ''really'' makes herself look stupid by using the "terror of darkness" line when talking to ''Remilia''. A ''vampire''. You know, ''lord of the night''?
* BerserkButton: You'll either frighten or anger her if you talk about grilled/fried chicken around her.
* BookDumb: She's unable to read kanji, but she still runs a successful food stand.
* BrownNote: Her singing will cause confusion and possibly night-blindness for any human who hears it.
* BoisterousWeakling: Severely overstates her abilities. She's so confident that she can defeat the heroines that after she's defeated as a mid-boss, she ''immediately'' starts the boss battle. After the border team beats her Yukari says "[[DeconstructedTrope A weakling acting strong leads to despair all the faster]]."
* ChewToy: Yuyuko's, both figuratively and literally. Rumia also tries to ''eat'' her during their combination attack in ''Touhou Soccer''.
* CoolShades: Wears a pair of these when performing as Choujuu Gigaku with Kyouko.
* CreepyChild: Likes singing. Likes [[ToServeMan eating people]]. Likes singing ''about'' eating people.
* HellBentForLeather: Wears a leather jacket with [[TooManyBelts numerous belts]] while in her Choujuu Gigaku getup.
* InterfaceScrew: her night-blindess power reduces the player's field of view.
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=hXmQDpTY6io "Deaf to All but the Song"]]
* LittleBitBeastly: Night sparrow wings and, oddly enough, furry ears (which sparrows don't have). And talons, when artists remember to draw them.
* MeaningfulName: Her last name refers to the German folk legend of [[http://en.wikipedia.org/wiki/Lorelei#Original_folklore_and_the_creation_of_the_modern_myth the Lorelei]], a water spirit whose beautiful singing voice would cause sailors to become distracted and then crash their ships into the rocks, drowning them.
* NiceHat: Remniscient of a [[https://en.wikipedia.org/wiki/Knit_cap#British_bobble_hat bobble cap.]] Its pom-pom's got wings!
* SnakeOilSalesman: In ''[[AllThereInTheManual Bohemian Archive in Japanese Red]]'', Mystia has started a food stand, selling grilled lamprey that she claims can help cure night-blindness. It turns out she's inducing the night-blindness with her songs and cancelling the effects herself as her customers eat. This has the added benefit of reducing consumption of poultry, which as an avian youkai she finds loathsome.
* PunkRock: Together with Kyouko she becomes Choujuu Gigaku (''dance of bird and beast''), a punk group that holds 'guerrilla concerts' at the dead of night.
* TemporaryBlindness: You'll get night-blindness if you listen to her song.
* UnusualEars: Feathered wing-shaped ears -- weirdly, as sparrows don't have external ears. It's possible they are head wings like Koakuma's.
* WingedHumanoid: Sparrow wings, supposedly, though they actually have a weird bird/bat hybrid design. (Normal bird wings don't have separate fingers.)

[[/folder]]

[[folder:Keine Kamishirasawa]]
[[quoteright:160:https://static.tvtropes.org/pmwiki/pub/images/rsz_th08keinekamishirasawa11.png]]

::''Half-Beast Of Knowledge And History''
::'''Keine Kamishirasawa'''

-->''"Tonight, I'll make an imperial feast out of your history!"''

A were-hakutaku who helps run a [[http://en.wikipedia.org/wiki/Terakoya temple school]] for the children of the Human Village.[[note]]{{Fanon}} has it that various "child" characters, like Cirno, Mystia, Rumia, Daiyousei, and sometimes even Tenshi, Parsee, and Kisume, all attend her school as well, but in canon she refuses to teach youkai.[[/note]] Despite transforming into a youkai on the full moon, she is staunchly on the side of humanity, and protects the village in times of danger. Keine possesses the ability to "eat history" in human form, and to "create history" in hakutaku form, but her powers only affect how things are perceived (i.e. she can conceal an object by eating its history, but not destroy it). She's also one of Mokou's few friends.

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* {{Animorphism}}: She turns into a [[http://en.touhouwiki.net/wiki/Hakutaku Hakutaku]] during the full moon, but the only apparent physical changes are that she grows a tail and horns (complete with ribbon) and her hair turns green.
* AnimalMotifs: Fanon often likens her to a cow because of the horns and tail of her hakutaku form.
* BewareTheNiceOnes: Fanon sometimes portrays Keine as a gentle if stern person who becomes an AxCrazy psychopath that likes to CAVE people during a full moon.
* BoobsOfSteel: Often depicted as such due to her vaguely-defined powers, use of corporal punishment... and the resemblance of her hakutaku form to a cow.
* FanNickname: "EX Keine" for her hakutaku form, due to its appearance on the Extra Stage. [[invoked]]
* FantasticRacism:
** Keine is the first character in the series to express the sentiment that youkai and humans should be segregated. And it need not be said that she'd take the side of the humans if push came to shove (and indeed that's exactly what she does in IN). To be fair, it's based on the theory that youkai will die out if humans stop fearing them, so maintaining a mutually antagonistic relationship is for the benefit of both sides. Made especially interesting by the fact that her were-hakutaku nature causes her to be considered half-human and half-youkai.
** It's probably also connected with what the Hakutaku, or Bai Ze in the original Chinese, was. The Bai Ze is said to have approached the Yellow Emperor to warn him about 10,000+ different kinds of yaoguai (original Chinese term for what the Japanese call youkai), their respective threat levels, and how to arbitrate with, repel, and/or destroy them. The Bai Ze was very much a fantastic beast in its own right.
* HarmfulHealing: {{Fanon}} sometimes gives her "healing" abilities similar to those of Miranda Lotto from ''Manga/DGrayMan'' - by eating the history of an injury, she can allow someone to temporarily ignore its effects, but exerting the injured body part too much will just make things worse when her power wears off.
* InfoDump: According to Mokou in ''Cage of Lunatic Runagate'' if given the chance Keine will go into extreme detail while explaining something unless cut off.
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=nNUrFwllEwE "Plain Asia,"]] and [[https://www.youtube.com/watch?v=tPRtnFwouzc "Extend Ash ~ Hourai Victim"]] for her Extra Stage appearance. Occasionally [[https://www.youtube.com/watch?v=AYcsE2h2pLo "Nostalgic Blood of the East ~ Old World"]] as well.
* LittleBitBeastly: When transformed, she grows a pair of horns and a tail.
* {{Lunacy}}: While she does turn into a hakutaku during a full moon, she doesn't become evil or anything. Though it's still best not to interrupt her work.
* MeaningfulName: If you read every single kanji in the name "Kamishirasawa" differently, it would be pronounced ue-hakutaku, ie: were-hakutaku with a Japanese accent.
* NiceHat: A bento box? A miniature pagoda?
* OurWerewolvesAreDifferent: In her case, a were-hakutaku.
* [[PaintItBlack Paint It Green]]: A variant - when she becomes a hakutaku, her blue dress turns green to match her hair.
* PerceptionFilter: Her history-eating powers seem to be an UpToEleven version of this, verging on RetGone. It's not perfect, however, as the ''Imperishable Night'' protagonists can still tell that the Human Village is missing, Yukari can see through it, and Akyuu claims that Keine has no power over her family's Gensokyo Chronicles.
* ProHumanTranshuman: Despite being half-youkai, she protects the human village from youkai.
* {{Protectorate}}: Both the human village and Mokou.
* SadistTeacher: Forgot to hand in your homework? ''Headbutt''. As noted in the supplementary materials, this is particularly painful on a full moon, when she has ''horns''. According to ''The Grimoire of Marisa'', she even uses spell cards in her lessons!
* {{Schoolmarm}}: In fanon, whenever she's shown teaching she's more often than not depicted as this. However, it's been {{Jossed}} as of ''Manga/ForbiddenScrollery'', where it's shown that she works at an elementary school with more than one teacher.
* StoneWall: Fan games usually place her somewhere between StoneWall and JackOfAllStats. Sometimes her hakutaku form is made a GlassCannon for contrast.
* UnPerson: Her ability as a human is to ''hide'' history, not destroy it. As in, ''hiding an entire Human village from history'' to make sure Youkai don't find it, yet still letting it exist. It is also a RunningGag in the fandom that missing characters were also hidden by her powers, like [[DummiedOut Rin Satsuki]].
* UseYourHead: Keine gives out headbutts to anyone who fails to hand in their homework. Getting headbutted on the full moon when she's in EX-mode is the other major definition of CAVED.

[[/folder]]

[[folder:Tei Inaba]]
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/rsz_tewiin12.png]]

::''White Rabbit of Good Fortune''
::'''Tei/[[SpellMyNameWithAnS Tewi]] Inaba'''

-->''"I don't lie just for my own fortune, but for those I trick, too. If you want bring good fortune to someone, you've got to lie."''

An earth rabbit youkai and leader of the earth rabbits of Eientei. Her explicit power is the ability to bring good luck to people, but usually she's just a prankster. Started as another stage midboss with no dialogue, only a name and profile, but later got more coverage, including a major role in ''Manga/InabaOfTheMoonAndInabaOfTheEarth''.

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* ADayInTheLimelight: Is a central character in Chapter 31 of ''Wild and Horned Hermit'', where she's behind a pet rabbit craze for the sake of making more youkai rabbits out of those the humans inevitably abandon.
* AscendedExtra: She was originally a midboss who wasn't even named in-game, just in the [[AllThereInTheManual manual]]. She however got a speaking and playable role in ''Phantasmagoria of Flower View'' and then became one of the main characters of ''Manga/InabaOfTheMoonAndInabaOfTheEarth''.
* TheBarnum: In an [[AllThereInTheManual interview]] she claims that while she's selling people lies, she still sort of gives them what they want.
* BornLucky: It's her explicit power to bring luck to other people, but as shown in ''Manga/InabaOfTheMoonAndInabaOfTheEarth'', she can use her power for herself as well. This resulted in the finding of a gold and jewels filled chest and... an anti-tank mine.
* TheCameo: One of Reisen's intros in the [=PS4=] version of ''Urban Legend in Limbo'' has Tewi push her out into the arena.
* CatSmile: She's often shown with one of these, befitting her mischievous nature; prime examples include her appearance in ''Manga/TouhouIbarakasenWildAndHornedHermit'' or on the [[http://www.amiami.com/top/detail/detail?gcode=CGD2-61809 Gift plushie]].
* CrazyPrepared: Again in ''Manga/InabaOfTheMoonAndInabaOfTheEarth'', Tei is shown to have packed sake on a fishing trip to go along with the fish they catch. When Reisen says it's only good if they caught fish, Tei pulls out four dried sardines on a stick, just in case the trip is a total loss.
* DoesNotLikeShoes: Canon and the majority of the Fanon usually draw her barefoot. The bonus materials of Volume 7 of ''Wild and Horned Hermit'' lampshade the fact that even in winter she's still barefoot.
* TheFairFolk: While she isn't a fairy, Akyuu describes her as having a mindset more akin to one than that of a rabbit.
* ImmortalImmaturity: While very intelligent and capable of handling responsibility, she much prefers mischief.
* JerkWithAHeartOfGold: Although she's a scammer and prankster, she helps people find their way when they get lost in the bamboo forest.
* KingIncognito: In ''Literature/CageInLunaticRunagate'', Reisen asks why Tei's shenanigans are tolerated. Eirin's private thoughts reveal to the reader that it's ''Tei'' who allowed the Moon natives to stay in Eientei when they first arrived, offering to help keep the exiles hidden so long as Eirin shared her knowledge with the earth rabbits, whom all obey Tei. The reason the Earth rabbits obey Kaguya and Eirin is only because Tei tells them to. So the Lunarians are not tolerating Tei. ''Tei'' is tolerating ''them.''
* LargeAndInCharge: Downplayed, ''Silent Sinner in Blue'' and ''Inaba of the Moon and Inaba of the Earth'' depict her as taller than the earth rabbits she leads as well as Reisen II, but she's still the shortest named character in the Eientei CastHerd.
* {{Leitmotif}}: Her official theme in ''Phantasmagoria of Flower View'' is [[https://www.youtube.com/watch?v=SUU60xes21w "Lord Usa's Elemental Flag,"]] but she's more associated with the stage five theme from ''Imperishable Night'', [[https://www.youtube.com/watch?v=41rsKG2ZqaQ "Cinderella Cage ~ Kagome, Kagome."]]
* LittleBitBeastly: She's an Earth rabbit who looks mostly human save for her ears and tail.
* OOCIsSeriousBusiness: Both Eirin and Reisen get worried when Tewi comes back to Eientei near delirious in her ''Phantasmagoria of Flower View'' ending, as the Yama's words actually managed to have an effect on her.
* PublicDomainCharacter: Marisa's comments on her "Ancient Duper" Last Word in ''The Grimoire of Marisa'' imply that Tewi is indeed the White Hare of Inaba from the legends.
* RefugeInAudacity: Tewi's reaction when Kasen admonishes her for selling rabbits in Chapter 31 of ''Wild and Horned Hermit'' is to... attempt to sell her a rabbit after going over her reasons for doing so, which actually works.
* RascallyRabbit: Naturally. It's implied that this is a characteristic of Earth rabbits that Moon rabbits aren't seen to display.
* ReallySevenHundredYearsOld:
** She was specifically mentioned as being one of the oldest youkai in Gensokyo. There are records of her existence in the first Gensokyo Chronicle, written by Hieda no Aichi over a thousand years ago. If you take ''The White Hare of Inaba'', a tale of a trickster rabbit, as the legend Tei is based off of, then this places her as ''several thousand years old'', as the myth appears in the Kojiki, the oldest surviving text of Japan.
** And since youkai [[StrongerWithAge gain power with age]], it's no wonder she's so carefree in everything she does. Even if, as a youkai rabbit, she'll never be a powerhouse, [[{{Fanon}} her luck powers have likely developed to the point that she's literally incapable of being harmed]].
* ScrewySquirrel: She is a known chronic habitual liar, a prankster (usually at Reisen's expense), and [[LittleMissConArtist a scammer]].
* SpeciesSurname: Inaba is what Kaguya calls all rabbits. It probably refers to the fairy tale ''[[http://en.wikipedia.org/wiki/Hare_of_Inaba The Hare of Inaba.]]''
* SpellMyNameWithAnS: Her given name has also been spelled "Tewi". However, the "wi" character has been rendered obsolete in modern Japanese, and is pronounced the same as the Japanese "i" anyway. Considering that Tei is supposed to be [[ReallySevenHundredYearsOld over 1200 years of age]], the "wi" character could have been chosen as a nod to her actual age, despite her childish looks and attitude. See also Tenshi's entry.
* StealthHiBye: According to Eirin's inner monologue in ''Cage in Lunatic Runagate'', she does this all the time.
-->'''Eirin:''' This wasn't the first time Tewi had pulled this stunt. She'd be beside you before you know it, and she'd disappear just as quickly. Still, she'd always be around when you really needed her.
* TheTrickster: Loves pulling pranks, with Reisen as her favorite target.
* {{Troll}}: Fanon often depicts her going too far with her pranks. Like Yukari, this has earned her a Danbooru pool of her trolling.
* WhatTheHellHero: Is on the receiving end of this from Kasen in Chapter 31 of ''Wild and Horned Hermit'' when she figures out the Tewi is behind the rabbit craze in Gensokyo, as she remembers how the Meiji rabbit craze long beforehand led to a whole bunch of abandoned rabbits. Tewi responds that she's doing this to give them a life of pampering, and to make youkai rabbits out of those the humans inevitably abandon.

[[/folder]]

[[folder:Reisen Udongein Inaba]]
[[quoteright:160:https://static.tvtropes.org/pmwiki/pub/images/rsz_reiseinin19.png]]

::''Lunatic Moon Rabbit''
::'''Reisen Udongein Inaba'''

-->''"I'll show you two everything of the moon's insanity!"''

Formerly a Lunar Rabbit named Rei'sen who fled from the Lunar War,[[labelnote:*]][[BeethovenWasAnAlienSpy which supposedly started with Neil Armstrong landing on the moon and planting a flag]][[/labelnote]] abandoning her comrades. It's not known whether [[DirtyCoward she did it out of cowardice]] or something else. She was found in Eientei by Kaguya and became her pet and Eirin's student. Changing her name to "Reisen", and receiving the nicknames "Udonge" from Eirin and "Inaba" from Kaguya (though that's what Kaguya calls all rabbits), she now loyally serves and protects her master and teacher. Being a Lunar Rabbit, she is gifted with the [[MagicalEye madness-inducing eye]], though ''Phantasmagoria of Flower View'' reveals that her eyes actually control waves in general, including mind waves and electromagnetic waves.

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* ADayInTheLimelight: Reisen's scenario of ''Legacy of Lunatic Kingdom'' more or less revolves around her CharacterDevelopment and her feelings about the Moon she left behind.
* AlternateCharacterReading: Reisen's spell card names are an oddity - they all have one name in kanji, but they're then given an official pronunciation in katakana, which creates a totally different phrase. For example, her first spell card's name is "Wave Sign: Red Eyes Hypnosis," but going by the katakana will get you "Wave Sign: Mind Shaker". Interestingly, only the katakana expression will change with difficulty level.
* TheApprentice: Is Eirin's in medicine to some extent.
* BadassBoast: "The moon can drive people mad. So can you really beat me, the rabbit whose eyes contain the moon's power?"
* BadassInANiceSuit: She only wore a suit jacket in her first game appearance, and exclusively wore short-sleeved dress shirts in all subsequent games, but the suit has become her IconicOutfit. In ''Manga/InabaOfTheMoonAndInabaOfTheEarth'', she wears the suit most of the time, and only takes the jacket off in summer.
* BadPowersGoodPeople: Her power, aside from being able to manipulate waves, is to [[MindRape drive people insane]] with her eyes. She doesn't really do this, though; she's depicted as one of the most level-headed characters in all of Gensoukyou, and only uses this power during ''Imperishable Night'' in order to protect Kaguya.
* BirdRun: Her dash in ''Scarlet Weather Rhapsody''.
* BitchInSheepsClothing: Reisen's profile in ''Scarlet Weather Rhapsody'' says that she is ''not'' a nice person, merely good at acting the way people expect her to, and that [[BlueAndOrangeMorality she doesn't think like a human]]. By the time of ''Legacy of Lunatic Kingdom'', however, she has spent longer in Earth's impure environment and seems to have [[BecomingTheMask become more genuine]] for it.
* BondGunBarrel: Her Occult Last Word in ''Urban Legend In Limbo'' has the camera focused on Reisen through what appears to be a bullet hole.
* TheBusCameBack: After not being playable in ''Hopeless Masquerade'' or the original release of ''Urban Legend in Limbo'', she's playable in the [=PS4=] port of ''Urban Legend in Limbo''.
* ButtMonkey:
** Everyone Reisen met treated her as a ButtMonkey in the semi-canonical ''Manga/InabaOfTheMoonAndInabaOfTheEarth''. She often suffers through ''"punishment time [[SayItWithHearts <3]]"'' at the hands of her master Eirin who sometimes knocks her out for days or weeks at a time, takes the brunt of whatever whims [[{{Cloudcuckoolander}} Princess Kaguya]] is having, and is the favorite target of Earth rabbit Tewi for her pranks. Both Mokou and Keine considered eating her, Suwako beat her up, Patchy teleported her into a wall after she almost got eaten by BooksThatBite, she almost became bait for Flandre, Alice used her as bait against a carnivorous mushroom, [[Manga/TouhouBougetsushou the other Reisen]] kicked her in the face when she landed, Yorihime ran her through TrainingFromHell, and even Wriggle, a stage one boss, completely overwhelmed her with her bugs. Poor MoonRabbit.
** One of her entrances in ''Urban Legend in Limbo'' has Tewi push her into the arena.
* CatSmile: She sports one in her appearance in ''Forbidden Scrollery'', mostly when she's explaining her rat-repelling cat statue to Marisa.
* CharacterDevelopment:
** Goes from to some extent believing herself to be superior to Earthlings in general like other lunar denizens to considering herself just "an earth rabbit who came from the Moon."
** Following the events of her story in ''Urban Legend In Limbo'', Reisen decides that she'll get to the bottom of the upcoming incident even without Eirin's help, as she's an earth rabbit now.
* ConfusionFu: Fittingly for a character who induces insanity, her fighting style revolves around being unpredictable:
** In {{Danmaku}} games, her gimmick is bullets that do not behave as they initially appear. Bullets will seem to fly in all directions, only to fold into patterns that are manageable if the player didn't panic and try to dodge the initial pattern. Bullets will vanish, multiply and divide, slow to a crawl at the oddest times, etc.
** In the fighting games, her moveset is similarly built around deceptive attacks, like a missile whose explosion appears ahead of the missile itself, two physical attacks that look the exact same on startup, or a movement technique that creates copies of herself. Her temperment in ''Scarlet Weather Rhapsody'' manifests as Mountain Vapor, which hides the current spell cards the opponents are using.
* CulturalPosturing: Occasionally shown to look down on Earthlings for being inferior to Lunarians. Notably in ''Manga/SilentSinnerInBlue'' she bursts into laughter on seeing Remilia's attempt at building a spaceship, only to be corrected by [[TheProfessor Eirin]] that it's astonishingly well-designed. That said, see GoingNative below.
* DeflectorShields: Reisen's bomb in ''Legacy of Lunatic Kingdom'', ''Barrier Wave (Evil Undulation)'', surrounds her in a three-layered shield. Each layer can negate one attack that hits her, and provides a brief period of MercyInvincibility afterwards.
* DisabilityImmunity: From a Lunarian perspective; because Reisen became impure as a result of her stay on Earth, she is capable of fighting Junko's minions alongside Reimu and the others because she no longer rejects life and death.
* DoppelgangerSpin: Some of her attacks in ''Urban Legend in Limbo'' involve making illusory versions of herself all shooting at once.
* DoubleMeaning: She is a Lunatic Rabbit. This can be taken to mean that she causes insanity, and it also fits her because of the fact that she is ''from the moon''.
* DropTheHammer: Her secondary weapon in ''Urban Legend in Limbo'' is a [[ImprobableWeapon mochi hammer]] used in tandem with the kunekune.
* ExplosiveOverclocking: Drinking too many potions (more than 3) in ''Scarlet Weather Rhapsody'' causes an explosion and a loss of the buffs given by the potions. Despite the loss of the buffs, this is actually a useful attack. The explosion does not harm Reisen herself and deals ludicrous amounts of damage to her opponent.
* EyeBeams: As an attack in ''Scarlet Weather Rhapsody'', and expanded on in ''Hisoutensoku'' with her new ''Red Eye "Viewing The Circle Moon (Lunatic Blast)"'' spell card.
* FacialProfiling: In ''Manga/ForbiddenScrollery'' she is sometimes drawn with features common to Japanese depictions of Caucasians (such as a prominent nose when seen from the side), albeit she's considerably more lanky than the stereotype.
* {{Familiar}}: The kunekune in ''Urban Legend in Limbo'' can hang around while Reisen does other attacks.
* FatalFlaw: Eiki says in ''Phantasmagoria of Flower View'' that her cowardice and selfishness are her greatest sins.
* FingerGun: Fanworks love showing off her skills without guns by using this instead, while canonically ''Scarlet Weather Rhapsody'', ''Urban Legend in Limbo'', and ''Antimony of Common Flowers'' have her do this while firing danmaku. [[https://www.youtube.com/watch?v=Cc6SKGXJpEc This, for example, shows it off.]]
* FriendlyEnemy: Despite technically being enemies due to Mokou's feud with Kaguya, she and Reisen have a mostly cordial relationship as revealed in ''Urban Legend in Limbo'', even if Mokou can be slightly condescending towards her. Two of Reisen's victory quotes even have her invite Mokou to Eientei to see a moon viewing, one by her own prerogative and the other by Kaguya's suggestion.
* GlowingEyesOfDoom: If she does ''that'', you are [[MindRape fucked]].
* GoingNative: Despite Reisen's moments of CulturalPosturing, in ''Legacy of Lunatic Kingdom'' she admits to Seiran after their battle that she thinks of herself as an earth rabbit nowadays and displays outright contempt towards the Lunarians for their selfishness. Both Doremy and Sagume tell her that they can sense the "earthiness" coming off her due to Reisen's acquired impurity.
* GunFu: Her fighting style in ''Urban Legend In Limbo'' involves gunplay combined with kicks and acrobatics.
* GunTwirling: Her victory animations in ''Urban Legend in Limbo'' have her twirl her handgun around, with the second having her manage to drop it mid-twirl.
* GunsAkimbo: Her "Moon Surface Ricochet (Lunatic Double)" spell card in ''Urban Legend in Limbo'' has her fire using two guns rather than just one.
* TheGunslinger: In ''Touhou'' fanworks, Reisen is the character who is most likely to be seen with a gun of some sort. Though given the nature of her danmaku, she's just as likely to be depicted firing actual bullets ''without'' a gun. Funny thing is that with the ''Touhou 15'' reveal, she IS given a gun...[[http://kourindou.exblog.jp/iv/detail/index.asp?s=22976576&i=201504/22/42/e0088742_20171870.jpg a rather small one]].
* HiddenDepths: You wouldn't expect someone like Reisen to be into punk rock considering her reserved personality, but ''Symposium of Post-Mysticism'' reveals that she's a fan of Choujuu Gigaku concerts.
* HumanityIsInfectious: Or something like that, though the actual reason is less CuriosityCausesConversion and more FisherKingdom. Prolonged exposure to the impure environment of Earth has slowly made Reisen impure (i.e. mortal) herself, causing her to think more like a human.
* IAmNotWeasel: A MoonRabbit who moves to Earth and starts calling herself an earth rabbit, despite being a different species. Most Earthlings treat her as a {{Youkai}} rabbit, which technically isn't true, but Reisen probably wouldn't have much success in trying to explain the difference.
* {{Invisibility}}: Sometimes (usually in the fighting games) she makes appearances by revealing herself to have been in the room, invisible, the whole time. It's part of her manipulation of waves; by keeping light waves from contacting her, she becomes invisible.
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=TbYikXsMCH4 "Lunatic Eyes ~ Invisible Full Moon."]]
* LittleBitBeastly: She's a MoonRabbit that looks mostly human save for her ears and tail.
* LonersAreFreaks: Reisen tends to keep to herself when she doesn't have business in the Human Village.
* {{Lunacy}}: In both senses of the word, she's from the Moon and can turn people insane with her powers.
* MakeMeWannaShout: Reisen's pistol in ''Urban Legend in Limbo'' resembles a megaphone, and she can scream into it to blast her opponents with sound waves.
* MasterOfIllusion:
** She can use her MagicalEye to bend light or mess with her enemies' senses directly, enough to cause [[MindRape lunacy]] to the target. Ironically, given her powers, she is said to be [[OnlySaneMan one of the most stable characters in the series]].
** One of her intros in ''Urban Legend in Limbo'' has her use her illusion powers to switch from her ''Forbidden Scrollery'' medicine seller outfit into her battle outfit.
* MeaningfulName: Eirin gave Reisen the surname "Udongein" from the lunar udonge, a plant created by Lunarians which blooms into the Jewelled Branch of Hourai in the presence of impurity. On the Moon seeing an udonge blossom is cause for alarm, while on Earth it is legendary for its beauty. As such, Kaguya is unsure whether Eirin was thinking of Reisen as a canary to measure the effects of impurity on themselves, or as a mundane thing that would only become beautiful when brought to Earth.
* MeaningfulRename: On the moon she was known simply as "Reisen"... or at least [[JapaneseRanguage something that would be approximated in Japanese phonics as Reisen]]. When she moved to Earth she started spelling her name as 鈴仙 (pronounced Reisen) and added a surname, to better blend in. Translations sometimes spell her moon name as [[PunctuationShaker "Rei'sen"]] for clarity. Can be considered an {{inversion}} of sorts of NameFromAnotherSpecies.
* {{Meganekko}}: Not normally, but one of the covers for ''Inaba of the Moon and Inaba of the Earth'' depicts her wearing glasses.
* MindRape: The usual result of her powers. Her Urban Legend in ''Urban Legend in Limbo'' is the kunekune, a youkai with the ability to drive anyone who sees it up close insane.
* MoonRabbit: Though she lacks the mochi hammer motif until ''Urban Legend in Limbo'', which has her using a mochi hammer and a kunekune in a mochi pot.
* MoralMyopia: In [[http://en.touhouwiki.net/wiki/Bohemian_Archive_in_Japanese_Red/Reisen her article]] in ''Bohemian Archive in Japanese Red'', she launches a protest against a Hakurei Shrine festival serving rabbit meat. Then launches another protest when the festival no longer has any meat to eat. Then dismisses [[{{Tengu}} Aya's]] uneasiness with the festival serving poultry. To make things worse, it's unclear if the youkai rabbits even care about the issue or if Reisen is just dragging them along.
* MorphWeapon: In ''Urban Legend In Limbo'' her pistol is revealed to have the ability to change its size and transform into rifle and shotgun variations.
* MundaneUtility: In ''Manga/ForbiddenScrollery'' she uses her knowledge of waves to create and sell an ultrasonic pest repellent.
* NoGoodDeedGoesUnpunished: In ''Forbidden Scrollery'', Reisen helps the human village deal with an infestation of rats by selling them a device that emits an ultrasonic noise and repels the pests. It works exactly as intended, it's humane, and because it's designed to look like a cat statue people keep them around afterwards as a good luck charm. However, she still gets punished because she did it behind Eirin's back.
* NotMeThisTime: Reisen ends up fighting people in ''Urban Legend in Limbo'' mainly because they end up blaming Eientei for the urban legends continuing to show up and then picking a fight with her because Reisen happens to be nearest member of the faction who's also guarding the way in.
* NotSoDifferent: One of her victory quotes against Mamizou has her mention that both rabbits and tanuki are seen as villains in stories.
* OnlySaneMan:
** [[{{Irony}} Ironic]] since she's a master of [[MindRape Lunacy]], but she's one of the most levelheaded people in Gensokyo.
** In ''Legacy of Lunatic Kingdom'' she's the least fight-happy out of all the playable protagonists and actually regularly attempts using reason, not that it actually works at preventing her from having to fight, since being a moon rabbit and deserter means that almost everyone has a reason to try fighting her.
* PowerNullifier:
** Her power over waves makes the stealth abilities of the [[Characters/TouhouOtherOfficialWorks Three Fairies of Light]] useless against her.
** According to Koishi's victory quote against her in ''Urban Legend in Limbo'', it apparently allows her to perceive Koishi despite the nature of her power as well.
* RapunzelHair: It goes down all the way to her ankles in some depictions, and keeps getting longer. In her ''Urban Legend in Limbo'' sprite, her hair is almost a whole foot longer than her entire body. Good thing she can fly...
* RedEyesTakeWarning: When she's using her Lunatic powers her red eyes will start glowing. This is also shared by her kunekune Urban Legend.
* RewardedAsATraitorDeserves: The LighterAndSofter version, but one interpretation is that everyone treats Reisen as the ButtMonkey as a kind of karma for her deserting the moon's army during wartime.
* ShellShockedVeteran: Her most serious portraits tend to depict her as this due to deserting during the Lunar War.
* ShoutOut: Reisen has [[Music/{{Vocaloid}} Miku, Rin/Len, Luka, Meiko, Kaito, Gakupo and Gumi]] as alternate palettes in ''Hisoutensoku''. In ''Imperishable Night'', one of her spellcards has the opponent's screen surrounded by a look [[Film/JamesBond down the barrel of a gun]].
* SmallGirlBigGun: Reisen is often depicted in fanon carrying and using a wide variety of guns, from pistols, rifles, and uzis, up to rocket launchers and even a turret-mounted chain gun. Conversely, she is just as often depicted firing bullets from her fingers, with just the index finger pointed and thumb raised, as she does in the fighting games. Because of this, Reisen is the only ''Touhou'' character who may actually qualify as a [[HyperspaceArsenal Walking Arsenal]].
* SourSupporter: Reisen will follow orders, but don't expect her to be happy about it. According to Doremy, even this level of ''actual loyalty'' is [[PunchClockVillain rare for a moon rabbit]], and Reisen probably only developed it after she came to Earth.
* SpeciesSurname: Like Tewi, she has the surname "Inaba" because Kaguya can't tell all the rabbits apart.
* StatuesqueStunner: ''Forbidden Scrollery'' reveals that Reisen's pretty tall compared to the human villagers, and she's also much taller than the average child-sized earth or moon rabbit, though Eirin's still much taller than she is.
* SwissArmySuperpower: Her power over waves has a huge number of uses, albeit most of them boil down to "sense things" or "confuse enemies".
* TelepathicSpacemen: All {{Moon Rabbit}}s are telepathic.
* {{Telepathy}}:
** Reisen can communicate psychically with other moon rabbits. Normally she doesn't in order to hide Eientei from the Moon, but in ''Literature/CageInLunaticRunagate'', Eirin has her asking other moon rabbits about rumours about spies and an incoming attack from Earth. [[spoiler: Which, intentionally on Eirin's part, caused those rumours to start existing]].
** She can also read people's brainwaves, giving her a rough idea of their personalities (or at least their pace in life), and can forcibly speed them up or slow them down to [[MindRape screw with their minds]].
* UnsympatheticComedyProtagonist: Reisen is an odd case. When she's a minor character she's sometimes shown with an inflated sense of self-worth, yet very little of this shows up in ''Manga/InabaOfTheMoonAndInabaOfTheEarth'' (where she's an actual protagonist).
* VitriolicBestBuds: One interpretation of her relationship with Tewi common in fandom, where despite their personality differences and Reisen being Tewi's favorite pranking target, the earth rabbit knows not to go ''too'' far and cares about her in her own way.
* WhatDidIDoLastNight: Suffers from this twice, ''in succession'', in ''Inaba of the Moon & Inaba of the Earth''. First, she gets drunk shortly before the second Lunar Expo, and stays drunk through all of it and awakens days after it's over. Soon after she wakes up for good, Tewi invokes HairOfTheDog and forcefeeds her sake. Reisen wakes up during another party, ''seven days later''.
* YouCantGoHomeAgain: Aside from the fact that she's a fugitive from the Moon, by ''Legacy of Lunatic Kingdom'' her stay on Earth has made her about as impure as any other living thing.
* YouCannotGraspTheTrueForm: Some of her spell cards work by using wavelengths that normal humans can't perceive.
* YouGottaHaveBlueHair: Or to be more exact, lilac hair.
* ZettaiRyouiki: In her article in ''Perfect Memento in Strict Sense'' and sometimes in ''Inaba of the Moon & Inaba of the Earth''. Nowhere else, though.
[[/folder]]

[[folder:Eirin Yagokoro]]
[[quoteright:220:https://static.tvtropes.org/pmwiki/pub/images/rsz_th08eirinyagokoro9.png]]

::''Brain Of The Moon''
::'''Eirin Yagokoro'''

-->''"There are also foolish humans who deliberately come all the way to the moon, and in the end, stick a flag on it as if it were their own. That's why Earthlings have always been, are now, and will forever be inferior."''

A Lunarian and a genius pharmacist who serves Princess Kaguya. She is the one who created the Hourai Elixir consumed by Kaguya and Mokou, as well as many other miraculous inventions. Eirin was an elite member of the moon's ruling class and part of the Lunar envoy sent to retrieve Kaguya, but instead betrayed and killed the other envoys and fled into hiding with Kaguya at Eientei. During the events of ''Imperishable Night'' it was she who stole the moon, by sealing Earth itself in a magic chamber, thus preventing the Lunarians from coming to Earth. Subsequently she has opened a pharmacy catering to both humans and youkai.

----

* AlchemyIsMagic: She makes immortality potions along with her varying medicines and potions.
* AlmightyJanitor: While a famous and respected sage who was instrumental in the creation of the Lunar Capital, Eirin's official rank among the Lunarian nobility doesn't seem to have been particularly high, which is implied to come from her [[{{Dismotivation}} lack of ambition]]. She is also [[HypercompetentSidekick much stronger and smarter than Kaguya, her current master]], but [[WillfullyWeak holds back her full strength out of respect]].
* AmbiguouslyHuman: As ex-Lunarians, it's not entirely clear how Eirin and Kaguya fit into Gensokyo's normal social structures; when Eientei was opened to the world, it's noted that they could have chosen to live as humans or as {{youkai}}. They chose to be human... but Yukari deciding that they don't really get what that ''means'' leads to the events of ''Manga/TouhouBougetsushou''.
* ArcherArchetype: Calm, cunning, often depicted with a bow and arrows,[[note]]She's merely holding a bow and arrow in-game, with no arrow danmaku or shooting animation, but was depicted firing danmaku from her bow in her illustration in ''The Grimoire of Marisa''[[/note]] and effectively a SpaceElf to boot.
* TheArchmage: Is among the most skilled magic users in the setting, personally considering the spell she used in ''Imperishable Night'' to encase the entire planet in a vessel to be "hardly [her] most powerful spell."
* BadassBookworm: In Gensokyo she's mostly known as a pharmacist, but she's actually the strongest person in Eientei (and likely one of the strongest in Gensokyo as a whole).
* BeenThereShapedHistory: She is implied [[AllThereInTheManual in an ingame spell-card description]] to have been responsible for the failure of the Apollo 13 mission.
* BewareTheNiceOnes:
** Sure, she's polite most of the time, and in her day job she's a physician, but she's also one of the founders of a civilization with a rather bloody history and isn't afraid to get her hands dirty if she has to.
** In ''[[Manga/TouhouBougetsushou Silent Sinner In Blue]]'' she sneaks up behind [[Characters/TouhouEmbodimentOfScarletDevil Patchouli Knowledge]] with an arrow in hand, with the implication that she plans to stab Patchouli InTheBack in order to stop the rocket launch. However, Patchouli notices Eirin and manages to defuse the situation, after which they have a polite chat.
* BoobsOfSteel: To go along with the other members of the {{fanon}} CastHerd "Old Maids Alliance": Yukari, Yuyuko, Kanako and Byakuren.
* BreakTheHaughty: When Eientei's existence was revealed, Eirin and Kaguya officially entered Gensokyo society as humans, but neither of them properly feared the power of youkai. Yukari took umbrage at that and sought to collect Eirin's "residence tax". [[spoiler:In fact, that was the entire point of her [[Manga/TouhouBougetsushou Second Lunar Invasion]]: By serving Eirin a glass of rare Lunarian sake after an apparently ''failed'' invasion plot, she was able to present her with something she could not understand. It's heavily implied that the fear of the unknown instilled in Eirin by this event leaves her scarred for life. More importantly, Eirin has to realize that if Yukari was serious then the damage done could have been a lot worse than missing a bottle of sake.]]
* ChemistryCanDoAnything: One of her signature abilities is listed as "creating any drug", and some of her creations seem to defy the laws of physics (including elixirs which grant CompleteImmortality or allow for in-universe SaveScumming). Sometimes overlaps with QuantumMechanicsCanDoAnything.
* CutenessProximity: Sees [[Characters/TouhouPhantasmagoriaOfFlowerView Medicine Melancholy]] as cute and harmless, despite Reisen's warnings that she attacks people with deadly poison. [[AdmiringTheAbomination Then again, Eirin doesn't have much trouble dealing with poison.]]
* DarkAndTroubledPast: Well, by Lunarian standards. She created the Hourai Elixir, which as a source of 'impurity' is a major taboo. She also murdered the Lunarians sent to retrieve Kaguya.
* DidYouJustPunchOutCthulhu: In the first Moon Invasion when Eirin was still a respected sage, '''[[TheArchmage Yukari]]''' of all people got caught in one of her traps. The gap youkai still bears a grudge for that...
** DidWeJustHaveTeaWithCthulhu: Fortunately however, neither Yukari nor Eirin recognize each other from that incident. To Eirin, Yukari is just a really powerful youkai to watch out for, while Yukari believes Eirin is a Lunarian spy who hasn't been shown the ropes in Gensokyo (she tries to teach her to fear youkai, since she lives as a human). Ironically ties in with an almost-literal take on the trope when Yukari serves Eirin sake.
* TheDragon: Noted to be both stronger and [[GameplayAndStoryIntegration harder]] than the final boss Kaguya.
* FinalBoss: Of the A-route of ''Imperisable Night''.
* FlightStrengthHeart: While not useless by any means, Eirin's signature ability, to make any kind of medicine, might seem like an [[WhatKindOfLamePowerIsHeartAnyway underwhelming one]] in the land of [[SuperpowerLottery Gensokyo]]. Granted, being a [[RequiredSecondaryPowers super genius]] on top of that is cool and all, but is it really gonna help her against someone who can [[PersonOfMassDestruction blow you up with nary a tho-]] oh, she's also [[ResurrectiveImmortality immortal]]? Alright then. That's a really solid combination, if a bit lacking in offensive pow- what do you mean, she is also [[TheArchmage a master of magic]], [[TimeAbyss with millennia, if not millions of years of magical knowledge under her belt]], who can create a '''barrier around the entire Earth''', and claims that she knows spells far more powerful than even that?
* HypercompetentSidekick: Eirin usually does most of the work at Eientei while Kaguya does nothing much at all. Though, Eirin usually delegates most physical work to Reisen.
* ImmortalityImmorality: Taking the Elixir is this in the Lunarians' eyes ([[Franchise/MassEffect it's a blight on moon purity]]), and her making it made her crime ''worse''.
* InsufferableGenius: Mild example, as while condescension and even outright mocking are not uncommon, she is generally a pleasant person, especially when considering that as possibly the most intelligent person in the solar system she must deal with the equivalent of ignorant children on a constant basis. It's noted she's hostile to people who can't understand what she says, even when dumbed down.
* IDidWhatIHadToDo: The plot of ''Imperishable Night'' is caused by Eirin trying to protect the Lunarian fugitives from possible arrest by the authority of the Moon. Eirin is afraid that everyone in Gensokyo is secretly trying to sell out her and her charges, which is justified when you look at the relationship between Gensokyo and the Lunarians. Help us, Eirin.
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=v-xhqldl_mw "Gensokyo Millennium ~ History of the Moon".]]
* MadDoctor: The worst she's devised are nightmare pills[[note]]an offshoot of the sweet dreams pills[[/note]] for people who are bored with their lives (and only after Aya keeps bothering her about medicine that doesn't help people); ''Manga/InabaOfTheMoonAndInabaOfTheEarth'' (which is a gag series and questionably canon) adds "fish bait" that caused fish to mutate into monsters and bamboo fertilizer that made bamboo grow impossibly fast and strong. In {{Fanon}} it's a whole other story.
* ManipulativeBastard: Has no issue using others as pawns if necessary, save for Kaguya, even her own pupils Reisen and the Watatsuki sisters.
* TheMedic: Eirin is Gensoukyou's resident doctor.
* MotherlyScientist: The ''other'' (rare) Fanon interpretation, where Eirin serves as a motherly figure for the rest of Eientei, and sometimes even to characters outside of it.
* NiceHat: A blue nurse cap with constellation patterns framing a red cross.
* OurGodsAreDifferent: Often implied to be the Shinto god of knowledge Omoikane, also known as '''Ya-gokoro'''-omoi-kane-no-mikoto, and in the interview with ZUN at the end of ''Symposium of Post-Mysticism'', he implies that she's one of the "higher class of gods" that live on the moon, as opposed to the native gods that live on the Earth.
* OutsideContextProblem: It's saying something when ''[[TheOmniscient Yukari]]'' can't even get the facts right, mistaking Eirin for a Lunarian spy when she's actually a (former) Lunarian ''sage''. More to the point, the magnitude of ''Imperishable Night'''s incident was enough to get Yukari to intervene personally, which is quite a feat.
* TheParagonAlwaysRebels: This is what it looked like from the moon's perspective anyway. Once one of the founding leaders of the moon, she's now their most wanted criminal, thousands of years after her betrayal. The people in charge of her capture still sympathize with her though.
* PetTheDog: Becoming a resident doctor for Gensokyo after the events in ''Imperishable Night''. Adopting Medicine Melancholy into the household at the end of ''Phantasmagoria of Flower View''. Allowing Reisen #2 to return unharmed to the Moon. Warning her (former) disciples, the Watatsuki sisters, of a possible plot by Yukari.
* PillarsOfMoralCharacter: While she rarely seems to actually ''care'' [[LackOfEmpathy about other people]], Eirin follows the pillars extremely closely. Her loyalty to Kaguya is driven largely by ''gimu'' (since she sees herself as the one to blame for Kaguya's punishment), and her decision to sell medicines to the people of Gensokyo is motivated by ''giri''. However, Kaguya claims that [[TookALevelInKindness the Eirin she knew on the moon would not have done the latter]], which suggests that [[HumanityEnsues becoming impure is starting to affect Eirin's mindset]].
* PlayingWithSyringes: A common {{fanon}} trait for more villainous or "[[DarkerAndEdgier edgier]]" portrayals. Kaguya claims she was like this a long time ago when she reached the Earth, seeing its inhabitants solely as test subjects.
* TheProfessor: Has absurd intelligence and scientific aptitude even by Lunarian standards. She mastered quantum teleportation in the Stone Age. She may or may not be [[SufficientlyAnalyzedMagic the inventor of magic]]. Listening to her physics lectures has been known to give people EnlightenmentSuperpowers. When they call her the "Brain of the Moon", it's for good reason.
* ProudScholarRaceGirl: She calls humans too stupid to get her charms in ''Imperishable Night'' during the Border Team scenario. Akyuu says she comes off as a jerk to people to who don't get what she's talking about, or are obviously idiots.
* RapunzelHair: At least reaches past her hips and she usually has it in a large braid. However, in the later chapters of ''Manga/InabaOfTheMoonAndInabaOfTheEarth'' she has been seen wearing it loose.
* ReallySevenHundredYearsOld:
** Likely 2000+ years old, but some vague hints suggest she may be ''[[TimeAbyss older than humanity itself]]'', if her dialogue with Sakuya suggests anything. At the very least, she was instrumental in the founding of Lunar civilisation some tens of thousands of years ago.
** To delve into Eirin's age from canon info: Eirin is older than Tsukuyomi (as said by Toyohime in ''Literature/CageInLunaticRunagate''). Tsukuyomi is a son of Izanagi. The three noble children, Amaterasu, Tsukuyomi and Susanoo, were born when Izanagi returned from his terrible quest to meet the dead Izanami, and cleansed himself. In other words, they were born quite some time after Izanagi and Izanami had created the islands of Japan. According to ''[[Music/ZUNsMusicCollection Izanagi Object ~ Neo-traditionalism of Japan]]'', Izanagi and Izanami created Japan 25 million years ago. So Eirin's age might be on a time scale comparable to that.
* SayItWithHearts: Any time she says "Punishment time" to Reisen, in ''Inaba''.
* ShoutOut: One of her spellcards is named after ''VideoGame/TheGameOfLife''.
* SilverFox: Commonly depicted as such, due to her [[TimeAbyss extreme age]] compared to most of the cast.
* SpaceElf: Lunarians are extremely long lived people who look down on humans for not having the same utopian lifestyle that they do. InSpace.
* StatuesqueStunner: Generally depicted as the tallest inhabitant of Eientei, and one of the tallest characters in the franchise period. Notably ''Manga/ForbiddenScrollery'' depicts Reisen as being quite tall compared to the inhabitants of the Human Village, but at least a head shorter than Eirin.
* SubordinateExcuse: Aside from the aforementioned betrayal and self-exile solely to be with Kaguya, she only manufactured the Hourai Elixir in the first place specifically because Kaguya asked her to do so.
* TimeAbyss: Likes to brag about her "infinite age" compared to other characters who are merely centuries old.
* TookALevelInKindness: According to Kaguya in ''Cage in Lunatic Runagate'' Eirin used to see the inhabitants of Earth as little more than tools like most other Lunarians (or as she puts it "hands or feet"), before mellowing out over the centuries. For instance, she points out that the Eirin she knew before would never have bothered playing doctor for Earthlings like she does post-''Imperisable Night''.
* TheUnpronouncable: Her real name cannot be pronounced by humans, and is always shown blanked out. The same applies for [[http://en.wikipedia.org/wiki/Chang%27e Chang'e]], so it might be a common trait for Lunarians.
* WillfullyWeak: ZUN says she's actually far stronger than Kaguya, but she limits her power out of respect for the princess. Possibly, she's one of the strongest Lunarians, whom are already pretty high on the power scale. She was the teacher to [[AlwaysSomeoneBetter the Watatsuki sisters]] after all.

[[/folder]]

[[folder:Kaguya Houraisan]]
[[quoteright:318:https://static.tvtropes.org/pmwiki/pub/images/rsz_th08kaguya13.png]]

::''The Eternal Moon Princess''
::'''Kaguya Houraisan'''

-->''"My five requests that so many humans in the past have failed to complete... How many of them can you fulfill?"''

A Lunarian princess who was exiled to Earth centuries ago for having consumed the Hourai Elixir, which made her immortal. While on Earth, her beauty attracted many suitors, including Mokou's father, but all were unable to complete her five impossible requests. When her exile had ended, she refused to return to the moon, and instead convinced Eirin to betray the Lunarians and escape into hiding with her. Her backstory is based largely on the [[http://en.wikipedia.org/wiki/Tale_of_the_Bamboo_Cutter Tale of the Bamboo Cutter]], the oldest known example of Japanese literature and quite possibly the original {{science fiction}} tale.

----

* AmbiguouslyHuman: There's no real precedent for "ex-Lunarian living on Earth" in Gensokyo's usual human/youkai divide, though Kaguya and Eirin chose to live as the former. Yukari taking umbrage with them (mainly Eirin) choosing to live like humans, but not "paying rent" by fearing youkai, led to the events of ''Manga/TouhouBougetsushou''.
* AmuletOfConcentratedAwesome: All her regular spell cards are powered by the items from her impossible requests. She only uses her manipulation of eternity after she loses to break the imperishable night during her last spells.
* {{Archenemy}}: Mokou's, though she tends to treat her as more of a SitcomArchnemesis than someone she truly hates.
* CallOnMe: Fanon generally has her summoning Eirin as soon as trouble arises, instead of solving things herself. Funnily enough, in canon, ''she'' has actually come to ''Eirin's'' aid during the "Hourai Elixir" spell in ''Imperishable Night''.
* CavalierCompetitor: ''Manga/InabaOfTheMoonAndInabaOfTheEarth'' implies that she treats Mokou's feud with her like a game, whereas for Mokou it's SeriousBusiness.
* {{Cloudcuckoolander}}: Her depiction in ''Manga/InabaOfTheMoonAndInabaOfTheEarth''.
* TheCollector:
** She somehow has all of the items she demanded as part of her famous Five Impossible Requests, despite the fact that no one ever found or brought her any of them. Whether or not she had them ''before'' making the requests, or collected them afterwards herself or came by them through some other means, is unknown.
** As Marisa notes in her grimoire, Kaguya is unusual in two regards: First, in that her Spellcards don't follow a unified theme like virtually everyone else's, as each one derives from its item entirely. Second, that each Spellcard's power comes entirely from the item rather than Kaguya. In a way, this makes her virtually the ''Touhou'' equivalent to Gilgamesh from ''VisualNovel/FateStayNight''.
** After ''Imperishable Night'', Kaguya starts expanding her Spellcard repetoire by collecting new items which are rare, unique or "impossible", including a wooden temple-ceiling that seems to be made of a single wooden panel... despite the fact that no tree could possibly be that big.
* CycleOfRevenge: It is stated that she kills Mokou back as often as Mokou kills her.
* DesperatelyLookingForAPurposeInLife: As revealed in ''Literature/CageInLunaticRunagate'' she wants an actual purpose besides sitting around in Eientei.
* EverythingsBetterWithRainbows: Her ''Impossible Request "Dragon Necklace"'', ''Impossible Request "Rainbow Danmaku"'', and ''"Tree-Ocean of Hourai"'' spellcards and their variations.
* FairyTale: She's literally a fairy tale [[EverythingsBetterWithPrincesses Princess]].
* GamerChick: Often depicted as one in fanworks to go along with the interpretation that she's a [[{{Hikikomori}} NEET]], [[AnachronismStew despite video games not being available in Gensokyo]].
* {{Hikikomori}}:
** Rarely leaves Eientei, except to pick fights with Mokou - and even then, prefers to send assassins at her. This led to MemeticMutation about her FanNickname NEET. But ''Literature/CageInLunaticRunagate'' reveals that Kaguya rather wants to leave the mansion, explore Gensokyo and interact with its people... or at least find something to do.
** ''Perfect Memento in Strict Sense'' implies that Kaguya most likely spent a great many years using her power of Eternity to make Eientei unchanging and undetectable, never leaving the mansion during that time. A very extreme extension of the lifestyle.
** The fact that Kaguya rarely leaves Eientei actually reflects the time period she was raised in: Japanese noblewomen weren't expected to go outside very often at all.
* HimeCut: Being based off of Kaguya-''Hime'', this is hardly a surprise.
* ImpossibleTask: Her stage is called "Five Impossible Requests", and her spell cards are named after the impossible requests from the original fairy tale.
* {{Immortality}}: Hourai immortals do not age or grow sick, and they [[ResurrectiveImmortality regenerate from anything]]. They are eternal, period. One can beat one by tiring them out and simply making them not want to fight you anymore, but it is literally impossible to kill one since the very concept of death has been removed from their being.
* ImmortalityImmorality: Notable for managing this even in a SocietyOfImmortals. The Lunarians achieve their limited form of immortality by cutting themselves off from impurity (that is, any source of life and death), allowing them to remain static and unchanging. Drinking the Hourai Elixir is considered a bad thing because it grants immortality by making the drinker "super-alive" and thus impure.
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=4w5s7dwrH7Q "Flight of the Bamboo Cutter ~ Lunatic Princess".]]
* NiceHat: Averted outright. One of the handful of ''Touhou'' characters to have no headgear of any kind.
* TheNicknamer: As stated in Tewi's entry, Kaguya refers to all rabbits as "Inaba", resulting in that part of the name for both Reisen and Tewi.
* {{Ojou}}: A Lunarian princess in self-imposed exile who currently lives in a mansion hidden deep within a bamboo forest. Also living with her is Eirin and a horde of rabbits, which includes Reisen and Tewi.
* PerfectRunFinalBoss: She's the boss of the B-route, which can only be accessed after completing the A-route. If you lose all your lives in Final B, you can't use a continue and are punted directly to a bad end. If you used a continue by the time you beat stage 5, it punts you into Final A and the boss fight with Eirin instead.
* PrettyPrincessPowerhouse: She's designed to look like the Japanese idea of the PrincessClassic (particularly with her HimeCut and her outfit resembling a kimono), but she's not exactly innocent and she can actually hold her own in a fight (that is, when she isn't making Eirin fight for her).
* PrincessesPreferPink: She wears a pink shirt with wide sleeves.
* PublicDomainCharacter: Her backstory is based of a Japanese folktale, but with a twist.
* RapunzelHair: It reaches her ankles.
* RebelliousPrincess: Kaguya was originally exiled to Earth for the crime of [[ImmortalityImmorality becoming immortal]]. Years later, she was forgiven for her crimes and Lunar emissaries were sent to bring her back to the Moon. However, she decided she would rather stay on Earth and proceeded to elude the emissaries while enlisting the aide of Eirin in the process. This would eventually lead to the events of ''Imperishable Night''.
* ShoutOut: In ''Shoot the Bullet'', [[http://en.touhouwiki.net/wiki/Shoot_the_Bullet:_Level_9_Spell_Cards#Spell_Card_9_-_4 One of Kaguya's spell cards]] directly refers to The Red Stone of Aja, a McGuffin from ''Manga/JoJosBizarreAdventure''.
* SpaceElf: As a Lunarian she pretty much is one.
* SuperStrength: Possibly. In the ''Grimoire of Marisa'', Marisa talks about how Kaguya can lift a solid wooden panel, large and wide enough to be a temple's ceiling, using only her hands. Whether this is simple physical strength or a magic trick, or super-strength ''as'' a magic trick, is unknown.
* TimeMaster:
** Her power is the manipulation of the Eternal and the Instantaneous. Her control over Eternity allows her to lock something in time, making it impossible for the thing to be detected, changed, or harmed. This power was what went into the Hourai Elixir. Her control over the instantaneous allows her to perform actions in intervals of time too small to be detected. It's suggested that she can mess with quantum events and manipulate alternate timelines with this power.
** Interestingly enough, when she discovers that the player's team has been causing the eternal night, she very quickly rips the spell apart using her power of Eternity. Which means that, in some respects, she's a stronger TimeMaster than Sakuya.
* WeaponOfChoice: She's often depicted with the Jewelled Branch of Hourai, one of her five impossible requests, and the last of her spell cards based on them.
* WhoWantsToLiveForever: While Mokou's a more popular target, DarkerAndEdgier portrayals commonly depict her as having been driven [[AxCrazy insane]] by the pain/boredom of living forever, or angsting about it. The former is more popular than the latter, as a result of doujin artists taking "lunatic princess" ''too'' seriously.
* WorldsMostBeautifulWoman: What Princess Kaguya was in "The Tale of the Bamboo Cutter".

[[/folder]]

[[folder:Fujiwara no Mokou]]
[[quoteright:177:https://static.tvtropes.org/pmwiki/pub/images/rsz_mokou5.png]]

::''Hourai Incarnate''
::'''Fujiwara no Mokou'''

-->''"My time is unlimited. That's why I must treasure this limited time."''

The Extra stage boss of ''Imperishable Night'', Mokou was the daughter of a nobleman (presumed to be [[http://en.wikipedia.org/wiki/Fujiwara_no_Fuhito Fujiwara no Fuhito]], the founder of the powerful Fujiwara clan) who was scorned by Kaguya centuries ago. She swore revenge against Kaguya, and ended up stealing the Hourai Elixir and consuming it, becoming immortal. Centuries later, after having completely forgotten about Kaguya over the years, they happened to meet again in Gensokyo and Mokou rekindled her grudge, if only to have a purpose in her infinite lifespan.

----

* ADayInTheLimelight: Shows up in Chapter 40 of ''Wild and Horned Hermit'' to illustrate how the bamboo is growing weird as {{Foreshadowing}} for ''Hidden Star in Four Seasons''.
* AnimalBattleAura: Adapts an aura shaped like a [[ThePhoenix phoenix]] for her spell cards. Many fanworks portray them as [[HotWings wings of fire]] instead.
* AnimalMotif: Associated with ThePhoenix, due to her immortality and fire powers.
* {{Archenemy}}: Kaguya's. Although despite killing her on a regular basis Kaguya seems to regard her as more of a {{Sitcom Archnemesis}} than anything.
* BadassBoast: "Ghosts without a soul cannot be born... People who can't die cannot know the world of the dead. Eternally born into darkness is life. Eternal death at the end of the dark. I know not death and surpass this darkness. See this beautiful danmaku from the dark tales!"
* BaitAndSwitchBoss: In the final stage of Reisen's story in ''Urban Legend in Limbo'' it looks like she's going to fight Reimu for the second time, but she gets teleported somewhere else and Mokou shows up in her place for Reisen to fight.
* TheBerserker: Her general fighting style in ''Urban Legend in Limbo''. This however does not come from her fighting in [[HotBlooded Hot Blood]], but rather from her own disregard and abuse of her own body.
* {{Bifauxnen}}: Somewhat more masculine-looking than most other characters, and one of the very few ones who wear trousers rather than a skirt or dress, so {{fanon}} often gives her a gruff and boyish personality to match her appearance. However, her RapunzelHair mostly excludes her from this trope.
* BlueBlood: From the powerful [[http://en.wikipedia.org/wiki/Fujiwara_clan Fujiwara clan]].
* BoisterousBruiser: A possible twisted example in ''Inaba of the Moon and Inaba of the Earth'', where she's all too eager to get into a fight with Kaguya, even if she puts on a possibly false display of anger and showmanship first. Regardless if that was a case of this or not, she's certainly this in the fighting games starting with ''Urban Legend in Limbo'', where she's extremely eager to have a sparring partner in Sumireko, and then she's overjoyed in Antimony of Common Flowers when Reisen seemingly finally grows a spine and attacks her (it was actually the Dream Reisen, but Mokou didn't know that).
* BonusBoss: Of the Extra Stage of ''Imperishable Night.''
* BoredWithInsanity: Went crazy for about three centuries by her reckoning, or so she tells Keine in ''Literature/CageInLunaticRunagate''. She basically spent her time burning anything and anyone she came across. After that she spent another three hundred years in an apathetic depression doing absolutely ''nothing''.
* CannotDream: {{Downplayed}}. [[DreamWeaver Doremy Sweet]] notes that the version of Mokou in the Dream World (who is supposed to have [[InhumanEmotion exaggerated versions of her emotions and desires]]) is unusually quiet, and wonders if she's grown weary of dreaming.
* CastFromHitPoints: Keeping with the GlassCannon aspect of her character, many of Mokou's attacks in ''Urban Legend in Limbo'' damage herself as well as her opponent. She also has a regeneration skill called "[[ResurrectiveImmortality Resurrection]]" that restores the self-damage done by her fire attacks but leaves her vulnerable, making playing her a delicate balancing game.
* CharlesAtlasSuperpower: See StrongerWithAge below.
* CloseRangeCombatant: In ''Urban Legend in Limbo'', her fighting style is stated to favor melee attacks more than projectiles.
* CombatSadomasochist: Possibly, if Marisa's remarks in ''Urban Legend in Limbo'' are to be believed.
* CycleOfRevenge: She and Kaguya are constantly killing each other... with absolutely no success, since both are immortal anyway. Mokou seems to get some kind of [[InUniverseCatharsis catharsis]] from this. Evidence includes her character profile referring to their eternal stalemate as "magnificent", and in a chapter of ''Literature/CageInLunaticRunagate'' Mokou makes reference to "the joys of killing each other over and over."
* TheCynic: Oooooh boy. It's especially apparent in ''Urban Legend in Limbo'', when her DeathSeeker side is in full force. She even flat out tells Ichirin if she beats her in VS mode that if monks actually saved people, the world would be a paradise by now.
* DarkAndTroubledPast: Kaguya embarrassed her father (and by extension, her whole family) because the latter presented her with fake items of her [[ImpossibleTask impossible requests]]. Mokou has detested Kaguya ever since.
* DeathSeeker: Her story mode in ''Urban Legend in Limbo'' has her seeking the Occult Balls after finding out that one of them comes from Yomotsuhirasaka [[note]]the path to the underworld walked by Izanagi to find his dead wife[[/note]] in order to see if she can finally die by opening the gates to the underworld. Though she seems to drop the idea after getting to Kasen. [[spoiler:She clearly hasn't in Reisen's story.]]
* DemonicPossession: Her survival card, ''Possessed By Phoenix''. Mokou's not-quite-yet resurrected spirit possesses the player's team, causing them to manifest her usual phoenix-wing aura, which begins to produce bullet-shooting familiars to attack the player. [[spoiler:Becomes a MythologyGag when she possesses Reimu in Reisen's story in ''Urban Legend in Limbo''.]]
* TheDeterminator: You have to kill her multiple times in order for her to finally stop due to the pain from being killed over and over being too much for her to focus. And that's just the in-game example.
* DisproportionateRetribution: Hates Kaguya enough to steal the Hourai Elixir she gave to the Emperor of Japan and attempt to kill her repeatedly... because Kaguya humiliated her father when he failed to complete her impossible requests for her hand in marriage. Or so she says. The truth is this is only an excuse. She was able to steal the Elixir by chance and drank it thinking immortality was gonna be awesome. A couple of very harsh centuries later, immortal life proved too much of a yoke; when she migrated to Gensokyo, she found Kaguya and rekindled the feud to give herself something to waste her time on.
* DoesNotLikeShoes: Canonically, she wears boots, but in many doujins and companion works, she's often drawn and depicted with a child-like distaste for shoes - likely due to her preference for [[KickChick kicks]] in combat. She even goes barefoot in snow, though in her defense as a pyromancer, she's never in danger of catching cold or even finding it uncomfortable.
* EdibleAmmunition: According to the ''Grimore of Marisa'', her ''Immortal "Fire Bird -Flying Phoenix-"'' spell card uses a large amount of yakitori for bullets.
* ElementalPunch: In {{fanon}}, she has an Elemental Kick which is now ascended to canon, as seen in one of her spell cards in ''Urban Legend in Limbo''.
* ExtremityExtremist: {{Fanon}} tends to portray her this way, [[KickChick using only her legs in melee combat]]. This appears to have become canon as of ''Urban Legend in Limbo'', where she primarily uses kicks when fighting.
* {{Fireballs}}: Most famously uses them in sprays themed after a phoenix's tail.
* {{Foil}}:
** To Kaguya primarily. ZUN mentions in ''Strange Creators of Outer World'' that when he was creating Mokou he had in mind creating a complete opposite to Kaguya in terms of past glory, down to giving her the surname of one of the defunct Four Great Houses of Japan, the Fujiwara clan.
** Also to [[Characters/TouhouTenDesires Futo]]. Both were daughters of the aristocracy over 1000 years in the past, had issues with their families, sought out immortality, have a rival that they took revenge on for shaming said families, and are associated with fire. In Mokou's case, however, her revenge wasn't successful, as she and Kaguya are still killing each other over and over--whereas Futo and Tojiko have a less bloodthirsty relationship. Mokou is also often depicted as [[WhoWantsToLiveForever angsting over her immortality]] and having more control over her flame abilities (as she was probably born with them) whereas Futo enjoys hers, and has legitimate [[{{Pyromaniac}} pyromania]].
* ForgetsToEat: Only one of the many ways in which Mokou neglects her immortal body. She'll never actually die of hunger no matter how long she goes without eating, and she actually thinks that it's more her style to endure some hunger pains rather than look for food. However, when it gets to be too much pain, she will go ahead and make something to eat.
* GlassCannon: A funny case - an attentive player can see her dying after each emptied lifebar... [[{{Immortality}} and respawn right off the bat]]. She seems to have some trouble coming back for her last card.
* HandsInPockets: Of all the hands that ZUN hides, hers are the only ones that are actually kept in pockets. This has since become a rather common CharacterTic of hers in fanworks, which appears to have become canon as of ''Urban Legend in Limbo'' (where she keeps her hands in her pockets most of the time while [[ExtremityExtremist mainly fighting with her legs]]).
* HimeCut: In an unusual color and with added decoration, but the distinctive side locks give it away. Mokou ''was'' a nobleman's daughter in about the right time period for it.
* HistoricalDomainCharacter: It's believed but unconfirmed that she may be based on the fifth daughter of Fujiwara no Fuhito, the man who Kuramochi no Miko from the original ''Tale of the Bamboo Cutter'' is presumed to based on, whose name and maternal parentage was lost to history.
* HotWings: Her aura manifests in the shape of phoenix wings. Fandom sometimes gives her actual wings.
* {{Immortality}}: She'll keep [[ResurrectiveImmortality resurrecting]] indefinitely, though that doesn't mean that getting killed doesn't hurt. Akyuu mentions that Mokou can regenerate if [[FromASingleCell even a single hair of her]] is all that's left. This applies for Kaguya too, but Mokou [[GoodThingYouCanHeal uses it more.]]
* ImmortalLifeIsCheap: Mokou and Kaguya are constantly literally killing each other so this comes naturally.
* IneffectualLoner: Save for Keine she normally keeps to herself when not fighting Kaguya.
* InterGenerationalFriendship / MoralityPet: Fanworks [[FandomSpecificPlot often]] have her bond with one or more of the students at Keine's school, which helps crack her shell of cynicism. Cirno and Flandre are also common targets, the former for the fire/ice contrast and the latter because Flandre doesn't have to worry about [[PowerIncontinence losing control of her powers]] when she's around an immortal.
** In ''Urban Legend in Limbo,'' she develops one of these with high-school student Sumireko after they fight twice.
* ItsPersonal: Mokou's original grudge against and rivalry with Kaguya is because she embarrassed her father when he couldn't complete her "Impossible Requests", tried to cheat by presenting Kaguya with a fake, and Kaguya called him on it in front of everyone present.
* JerkassFacade:
** She'll help anyone who gets lost in the Bamboo Thicket or wants to cross it, but won't exchange a word with them, and in general she doesn't socialize. A rough demeanor and short temper add to it too.
** In ''Urban Legend in Limbo'', she's very mean to Sumireko, threatening to burn her when they first encounter one another. However, after Sumireko gets lost in Gensokyo, Mokou tries to help her by returning her Occult Balls.
* KaizoTrap: ''[[https://www.youtube.com/watch?v=VPm1hYbynlQ&t=4m26s Fire Bird -Legend of Immortality-]]'' in ''Impossible Spell Card''. If killed, Mokou launches a hard-to-dodge attack ''during her death animation'' then respawns at full health. But killing her resets the rapidly-increasing bullet density of the main spellcard, so...
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=OOefbCXJ0Sc "Reach for the Moon, Immortal Smoke"]].
* LethalChef: ''Manga/InabaOfTheMoonAndInabaOfTheEarth'' shows that Mokou's cooking is ''more'' unhealthy than her starving herself is. She outright says that she thought she was going to die from eating the mushrooms she had grilled for herself... only to immediately correct herself and admit that she actually ''did'' die from them, making her a literal example of this trope.
* LockedIntoStrangeness: Prior to drinking the Hourai Elixir her hair was black, but it eventually turned bluish-white over the centuries.
* MomentOfWeakness: During the trip down from Mount Fuji she was overcome by the desire for immortality and killed Iwakasa, the man carrying the elixir, and took it for herself. She has regretted that ever since.
* MyGodWhatHaveIDone: According to ''Literature/CageInLunaticRunagate'', before Mokou became immortal she met a man named Iwakasa, a subordinate of the Emperor who was ordered to dispose of the Hourai Elixir and throw it into a volcano. She later kills him and steals the elixir in a moment of weakness, tempted by immortality. Mokou immediately feels guilt for what she had done and two of her spellcards (''Curse of Tsuki-no-Iwakasa'' and ''Honest Man's Death'') are named after him.
* NoSell: Yuyuko's death inducing power has no effect on her.
* OnlyFriend:
** Keine has been her only friend for an indeterminate period of time.
** ''Urban Legend in Limbo'' seems to [[SubvertedTrope subvert this]] by Mokou expressing interest in befriending Sumireko, Futo, and Miko.
* [[PlayingWithFire Playing With]] [[HotWings Phoenix Fire]]: It's only reasonable for someone with fire magic and immortality to invoke the image of a phoenix, so she shoots firebird danmaku and [[BattleAura surrounds herself with an aura shaped like bird wings]]... which adds more [[RuleOfSymbolism symbolism]] about her immortality.
* PowerGivesYouWings: Can sprout flame wings.
* PromotedToPlayable: Makes her debut as a playable character in ''Urban Legend in Limbo''.
* RapunzelHair: It grows all the way down to the soles of her feet.
* RazorSharpHand: In Chapter 40 of ''Manga/WildAndHornedHermit'' she slices a bamboo stalk in two with her bare hand.
* RevengeBeforeReason: Kind of inherent in a cycle of revenge murders between immortals.
* TheRival: To Kaguya.
* SavedForTheSequel: Planned to be a playable character in ''Hisoutensoku'' but got scrapped. While she missed the fighting game after ''Hisoutensoku'', ''Hopeless Masquerade'', she finally makes her playable debut in its successor, ''Urban Legend in Limbo''.
* ShapingYourAttacks: Some of her spell cards shoot blasts of fire shaped like birds.
* ShoutOut:
** Her ''Immortal "Fire Bird -Flying Phoenix-"'' and ''Hollow Giant "Woo"'' spells cards reference both ''Manga/SaintSeiya'' and ''Manga/3X3''.
** Her ''Everlasting "Phoenix's Tail"'' spell card is a direct reference to the ''Franchise/FinalFantasy'' series, as it's the Japanese name for Phoenix Down.
** One of her intro animations in ''Urban Legend in Limbo'' is an [[Franchise/StreetFighter Akuma]] pose.
* SleevesAreForWimps: In ''Urban Legend in Limbo'', the sleeves on her blouse are torn right off. Unlike most cases this seems to be out of simple wear and tear from her fire magic.
* SmokingIsCool: Often seen smoking in fanart. It's not like she has to worry about the health effects. All started with side-story where she mentions cigarettes as the cause of a forest fire, which was in fact almost certainly started by her and Kaguya during one of their battles. Somehow fans assumed this means Mokou smokes.
* SpellMyNameWithAnS: K-S Romanization - Huziwara no Mokou.
* SphereOfDestruction: In ''Impossible Spell Card'', her ''Regretful Life "Immortality's Reckless Sacrifice"'' has her create these by ramming into the sides of the screen (and exploding).
* SpontaneousHumanCombustion: Her "urban legend" in ''Urban Legend in Limbo'' focuses on this. Of course, it is more like a case of self-immolation with her setting herself suddenly on fire and she can recover from it.
* StandardPowerupPose: She takes the iconic pose whenever she uses any of her self immolating abilities in ''Urban Legend in Limbo''.
* StrongerWithAge: According to ''Perfect Memento in Strict Sense'', all the Hourai Elixir did was make her immortal. All of her firepower has come from more than a millennium and a half of practice. If you consider her to still be human, she is the only human EX-Boss in the entire series except Marisa in ''Fairy Wars''.
* SuicideAttack: Tends to show little regard for her own safety in combat, to the point where she dies (and [[ResurrectiveImmortality respawns]]) after every spell. Some fanworks interpret this more directly as Mokou [[CastFromHitPoints burning her own life force to empower her attacks]]. ''Urban Legend in Limbo'' renders this canon.
* ThisIsUnforgivable: She likes saying this to Kaguya in ''Manga/InabaOfTheMoonAndInabaOfTheEarth'', but never actually delivers on it, making her look like a {{tsundere}} rather than a mortal enemy.
* TomboyishPonytail: In her redesign for the fighting games she has her RapunzelHair tied up in a pretty big ponytail. It goes well with her masculine clothing.
* TrainingFromHell: In ''Manga/InabaOfTheMoonAndInabaOfTheEarth'' she is shown to have developed a high tolerance for pain by intentionally taking danmaku point-blank to the face.
* TrueFinalBoss: Of the [=PS4=] version of ''Urban Legend in Limbo'' in Reisen's campaign.
* {{Tsundere}}:
** The fanon portrayal - a rageaholic, short-tempered woman obsessed with Kaguya, to the point where she became immortal to wage eternal war on her. Canon [[TrollingCreator deliberately subverts this]] by turning her into an apathetic slacker who only wars with Kaguya out of boredom.
** Despite her grudge against Kaguya, she also feels that they mitigate each other's [[WhoWantsToLiveForever immortal loneliness]] as no one else can, even with Kaguya being firmly on the LivingForeverIsAwesome side of things. ''Literature/CageInLunaticRunagate'' has her explaining to Keine [[AntagonistInMourning how terrified she was]] when she heard about the Moon rocket in ''Manga/SilentSinnerInBlue''. She thought Kaguya was taking it to the Moon and was going to leave forever.
** There's also the JerkassFacade and pretty much anything she does in the semi-canonical ''Manga/InabaOfTheMoonAndInabaOfTheEarth''. Naturally, fans [[FoeYay exaggerate it for shipping purposes]].
* TheUnfavorite: Due to the fact that Mokou wasn't allowed to go out in public, it's believed that she was an unwanted child.
* WhoWantsToLiveForever: Finding Kaguya and getting into that cycle of mutual murders was a step '''up''' for Mokou after she spent most of her immortal life alone, alienated a from society that was suspicious and frightened of her agelessness. She also claims she went insane for 300 years and destroyed anyone who got near her. Notable for being the ''only'' immortal character in the entire series to not think LivingForeverIsAwesome, although she seems to have come to terms with her situation, finally.
* WingedHumanoid: One of her ''Urban Legend in Limbo'' victory poses has her sprout flaming wings from her back, and she uses them for some of her moves.
* WreathedInFlames: Her central mechanic in ''Urban Legend in Limbo'' is to basically light herself ablaze to boost her abilities at the cost of health.

[[/folder]]
----

** One of her intro animations in ''Urban Legend in Limbo'' is an Akuma pose.

* BadassCape: It's made kind of unclear as to wheather that's an actual cape or just bug wings, but still.

* DynamicEntry: [[labelnote:WRIGGLE KICK!]]To autocollect items in ''Imperishable Night'' you fly to the top of the screen and focus. Midboss Wriggle zooms in from the top of the screen with very little warning, so it's very common for a beginning player to die unexpectedly by colliding with Wriggle. This has [[MemeticMutation mutated]] into the WRIGGLE KICK![[/labelnote]]

* FingerGun: Fanworks love showing off her skills without guns by using this instead, while canonically ''Scarlet Weather Rhapsody'' and ''Urban Legend in Limbo'' have her do this while firing danmaku. [[https://www.youtube.com/watch?v=Cc6SKGXJpEc This, for example, shows it off.]]

[[center: [- [[Characters/{{Touhou}} Top Index]] | [[Characters/TouhouMainCharacters Main Characters]] | [[Characters/TouhouPC98 PC-98]] -] ]]

* PrincessesPreferPink: Wears a pink kimono most of the time.

* DeathSeeker: Her story mode in ''Urban Legend in Limbo'' has her seeking the Occult Balls after finding out that one of them comes from Yomihirasaka [[note]]the path to the underworld walked by Izanagi to find his dead wife[[/note]] in order to see if she can finally die by opening the gates to the underworld. Though she seems to drop the idea after getting to Kasen. [[spoiler:She clearly hasn't in Reisen's story.]]

* StealthHiBye: According to Eirin's inner monologue in ''Cage in Lunatic Runegate'', she does this all the time.

** She was specifically mentioned as being one of the oldest youkai in Gensoukyou. There are records of her existence dating back to the creation of Gensoukyou, which makes her over ''1300'' years old. If you take ''The White Hare of Inaba'', a tale of a trickster rabbit, as the legend Tei is based off of, then this places her as ''several thousand years old'', as the myth appears in the Kojiki, the oldest surviving text of Japan.

* BoisterousBruiser: A possible twisted example in ''Inaba of the Moon and Inabe of the Earth'', where she's all too eager to get into a fight with Kaguya, even if she puts on a possibly false display of anger and showmanship first. Regardless if that was a case of this or not, she's certainly this in the fighting games starting with ''Urban Legend in Limbo'', where she's extremely eager to have a sparring partner in Sumireko, and then she's overjoyed in Antimony of Common Flowers when Reisen seemingly finally grows a spine and attacks her (it was actually the Dream Reisen, but Mokou didn't know that).

* BoisterousBruiser: A possible twisted example in Inaba of the Moon and the Earth, where she's all too eager to get into a fight with Kaguya, even if she puts on a possibly false display of anger and showmanship first. Regardless if that was a case of this or not, she's certainly this in the fighting games starting with Urban Legend in Limbo, where she's extremely eager to have a sparring partner with Sumireko, and then she's overjoyed in Antimony of Common Flowers when Reisen seemingly finally grows a spine and attacks her (it was actually the Dream Reisen, but Mokou didn't know that).

* UnexpectedCharacter:
** Appearing as a playable character in ''Legacy of Lunatic Kingdom''. Similar to Sakuya in ''Double Dealing Character'', no one was expecting to see Reisen again in a main game, especially since her last (and only) playable appearance in a main game was way back in ''Phantasmagoria of Flower View''.
** One would be forgiven if they were surprised for her return to the fighting game scene in ''Urban Legend in Limbo's'' [=PS4=] port, since the 'aerial fighter' games so far had almost only new characters to play as. Reisen is so far the ''only'' veteran fighting game character pre-''Hopeless Masquerade'' to come back for it, excluding the protagonists.

* UnexpectedCharacter: Due to being a fairly minor character in a long-finished plot arc, Mokou's appearance in ''Urban Legend in Limbo'' as a playable character came right out of nowhere.