Characters / Touhou Eiyashou ~ Imperishable Night

Touhou Project characters index
Main characters: Main Characters
PC-98 Era: PC-98 Games (Highly Responsive to Prayers, Story of Eastern Wonderland, Phantasmagoria of Dim. Dream, Lotus Land Story, Mystic Square)
Windows Era — Main Games: Touhou Koumakyou ~ the Embodiment of Scarlet Devil | Touhou Youyoumu ~ Perfect Cherry Blossom | Touhou Eiyashou ~ Imperishable Night | Touhou Kaeidzuka ~ Phantasmagoria of Flower View | Touhou Fuujinroku ~ Mountain of Faith | Touhou Chireiden ~ Subterranean Animism | Touhou Seirensen ~ Undefined Fantastic Object | Touhou Shinreibyou ~ Ten Desires | Touhou Kishinjou ~ Double Dealing Character | Touhou Kanjuden ~ Legacy of Lunatic Kingdom | Touhou Tenkuushou ~ Hidden Star in Four Seasons | Touhou Kikeijuu ~ Wily Beast and Weakest Creature | Touhou Kouryuudou ~ Unconnected Marketeers | Touhou Juuouen ~ Unfinished Dream of All Living Ghost
Windows Era — Other: Side Games | Other Official Works

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This page is for Touhou characters who debuted in Touhou Eiyashou ~ Imperishable Night.

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Wriggle Nightbug

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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• Boyish Short Hair: Has short hair which, combined with her dress-style, gives her a noticeably tomboyish look.
• Flat Character: Has very little characterization to speak of.
• Heart Is an Awesome Power: Gathering and controlling insects may not seem too impressive when you consider garden variety bugs like ants, butterflies, and so on. Then it suddenly becomes terrifying when you realize that this could mean anything from acid spitting hornets, to bullet ants, to killer bees, and god knows what else. On top of that, many insects live in swarms, so Wriggle has hundreds, if not thousands of insects her command at any given moment. 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.
• Incredibly Lame Pun: She tells Reimu in Imperishable Night that's she's got some nerve not being bugged by her.
  Reimu: Was that a pun?
• Leitmotif: "Wriggling Autumn Moon ~ Mooned Insect"
• Little Bit Beastly: Firefly antennae.
• Warm-Up Boss: She's the first midboss and boss in Imperishable Night, and the easiest to squish like a bug.

Mystia Lorelei

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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• Badass Boast: "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?
• Berserk Button: You'll either frighten or anger her if you talk about grilled/fried chicken around her.
• Book Dumb: She's unable to read kanji, but she still runs a successful food stand.
• Brown Note: Her singing will cause confusion and possibly night-blindness for any human who hears it. Curiously, despite the overall weakness of Mystia herself, the in-universe descriptions of her songs by multiple high-level characters make the ability sound quite terrifying in its nature, suggesting that Mystia may be unaware of the full potential of her ability and may be channeling some kind of eldritch force as she sings.
  "[Your song] isn't coming from inside you, but rather you're singing a song you're hearing from a faint voice." -Yuuka Kazami
  "If you continue singing without thinking, the souls around you will become more than strange." -Shiki Eiki
• Boisterous Weakling: 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 "A weakling acting strong leads to despair all the faster."
• Cool Shades: Likes to wear shades when performing as Choujuu Gigaku with Kyouko.
• Cute and Psycho: Likes singing. Likes eating people. Likes singing about eating people.
• Hell-Bent for Leather: Wears a leather jacket with numerous belts while in her Choujuu Gigaku getup.
• Interface Screw: Her night-blindness power reduces the player's field of view.
• Leitmotif: "Deaf to All but the Song"
• Little Bit Beastly: Night sparrow wings and, oddly enough, furry ears (which sparrows don't have). And talons, when artists remember to draw them.
• Meaningful Name: Her last name refers to the German folk legend of 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.
• Signature Headgear: She almost always wears a hat reminiscent of a bobble cap. Its pom-pom's got wings!
• Snake Oil Salesman: In 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.
• Psycho Pink: Her hair is colored pink and she likes eating humans.
• Punk Rock: Together with Kyouko she becomes Choujuu Gigaku (dance of bird and beast), a punk group that holds 'guerrilla concerts' at the dead of night.
• Temporary Blindness: You'll get night-blindness if you listen to her song.
• Toxic Friend Influence: Byakuren is not pleased with Kyouko forming a punk rock band with Mystia and sees the night sparrow as a bad influence in need of punishment.
• Unusual Ears: Feathered wing-shaped ears — weirdly, as sparrows don't have external ears. It's possible they are head wings like Koakuma's.
• Winged Humanoid: Sparrow wings, supposedly, though they actually have a weird bird/bat hybrid design. (Normal bird wings don't have separate fingers.) She looks human otherwise, though.

Keine Kamishirasawa

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 temple school for the children of the Human Village. 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 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.
• Fantastic Racism:
  • 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.
• Info Dump: 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: "Plain Asia," and "Extend Ash ~ Hourai Victim" for her Extra Stage appearance. Occasionally "Nostalgic Blood of the East ~ Old World" as well.
• Little Bit Beastly: 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.
• Meaningful Name:
  • If you read every single kanji in the name "Kamishirasawa" differently, it would be pronounced ue-hakutaku, ie: were-hakutaku with a Japanese accent.
  • In German, "keine" is the feminine form of "kein", which is used in a sentence to negate the noun it modifies (if you wish to say something is not [X], for example). Very appropriate for a female character whose power resolves around selectively negating things.
• Our Werewolves Are Different: In her case, a were-hakutaku.
• Paint It Black: A variant - when she becomes a hakutaku, her blue dress turns green to match her hair.
• Perception Filter: Her history-eating powers seem to be an exaggerated version of this, verging on Ret-Gone. 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.
• Power Dyes Your Hair: Has white and blue hair in normal form, and switches the blue for green in her were-hakutaku form.
• Pre-Final Boss: Is the Extra Stage midboss.
• Pro-Human Transhuman: Despite being half-youkai, she protects the human village from youkai.
• Protectorate: Sees both the human village and Mokou as under her protection.
• Recurring Boss: Is the Stage 3 boss in her regular form and Extra Stage midboss in her were-hakutaku form.
• Sadist Teacher: 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!
• Signature Headgear: Wears a hat that resembles a miniature pagoda.
• Un-person: 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.
• Use Your Head: Keine gives out headbutts to anyone who fails to hand in their homework.
• Wake-Up Call Boss: She's one of the first bosses in Imperishable Night. However, unlike Wriggle and (to a lesser extent) Mystia, she's the first opponent to use complicated and harder-to-read attacks.

Tei Inaba

White Rabbit of Good Fortune

Tei/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.

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• A Day in the Limelight: 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.
• Ascended Extra: She was originally a midboss who wasn't even named in-game, just in the manual. She however got a speaking and playable role in Phantasmagoria of Flower View and has been a recurring character ever since.
• Barefoot Cartoon Animal: 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.
• The Barnum: In an interview she claims that while she's selling people lies, she still sort of gives them what they want.
• Beware the Silly Ones: In Reimu's Pointdevice route ending from Legend of the Lunatic Kingdom, Tei asks Reimu about her battle against Junko because she is looking for 'Lunarian' weak points. Whether Tei's intentions are to actually befriend the Lunarians or blackmail them with said knowledge, or even if she is simply preparing herself just in case Eirin and Kaguya try to double cross her one day, only time will tell.
• Born Lucky: Has power over luck.
• The Cameo: One of Reisen's intros in the PS4 version of Urban Legend in Limbo has Tewi push her out into the arena.
• The Fair Folk: While she isn't a fairy, Akyuu describes her as having a mindset more akin to one than that of a rabbit, being a known prankster who likes to trick people.
• Immortal Immaturity: While very intelligent and capable of handling responsibility, she much prefers mischief.
• Inconsistent Spelling: 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 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.
• Jerk with a Heart of Gold: Although she's a scammer and prankster, she helps people find their way when they get lost in the bamboo forest.
• Large and in Charge: Downplayed, Silent Sinner in Blue depicts 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 Cast Herd.
• Leitmotif: Her official theme in Phantasmagoria of Flower View is "White Flag of Usa Shrine", but she's more associated with the stage five theme from Imperishable Night, "Cinderella Cage ~ Kagome-Kagome".
• Little Bit Beastly: She's an Earth rabbit who looks mostly human save for her ears and tail.
• O.O.C. Is Serious Business: 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.
• Playful Cat Smile: She's often shown with one of these, befitting her mischievous nature; prime examples include her appearance in Touhou Ibarakasen ~ Wild and Horned Hermit or on the Gift plushie.
• The Prankster: Loves pulling pranks, with Reisen as her favorite target. She's also a habitual liar and a scammer.
• Public Domain Character: Marisa's comments on her "Ancient Duper" Last Word in The Grimoire of Marisa all but confirm that she is indeed the White Hare of Inaba from the Kojiki.
  Marisa: "Seems to be based on a time when she fooled a bunch of sharks to cross the sea in ancient times."
• Queen Incognito: In Cage in Lunatic Runagate, 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.
• Refuge in Audacity: 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.
• Rascally Rabbit: She's a prankster Earth rabbit. It's implied that this is a characteristic of Earth rabbits that Moon rabbits aren't seen to display.
• Really 700 Years Old: Despite her young appearance, Akyuu states that she's one of the oldest youkai in Gensokyo, and being the White Hare of Inaba in particular makes her at least more than 1,300 years old.
• Species Surname: Inaba is what Kaguya calls all rabbits.
• Stealth Hi/Bye: 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.
• What the Hell, Hero?: 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.

Reisen Udongein Inaba

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,^*which supposedly started with Neil Armstrong landing on the moon and planting a flag abandoning her comrades. It's not known whether 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 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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• A Day in the Limelight: Reisen's scenario of Legacy of Lunatic Kingdom more or less revolves around her Character Development post-Imperishable Night and her feelings about the Moon she left behind.
• Alternate Character Reading: 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.
• The Apprentice: Is Eirin's mentee in medicine to some extent.
• Authority in Name Only: Nominally has superiority over Tewi, but in practice the latter never listens to what Reisen has to say.
• Badass Boast: "The moon can drive people mad. So can you really beat me, the rabbit whose eyes contain the moon's power?"
• Badass in a Nice Suit: She only wore a suit jacket in her first game appearance, and exclusively wears short-sleeved dress shirts in all subsequent games, but the suit has become her Iconic Outfit.
• Bad Powers, Good People: Her power, aside from being able to manipulate waves, is to 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 Gensokyo, and only uses this power during Imperishable Night in order to protect Kaguya.
• Bird Run: Her dash in Scarlet Weather Rhapsody has her run with her arms behind her.
• Bitch in Sheep's Clothing: 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 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 become more genuine for it.
• Bond Gun Barrel: Her Occult Last Word in Urban Legend In Limbo has the camera focused on Reisen through what appears to be a bullet hole.
• The Bus Came Back: 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.
• Butt-Monkey: A frequent target of humiliation, especially in Inaba of the Earth and Inaba of the Moon. One of her entrances in Urban Legend in Limbo has Tewi outright push her into the arena.
• Canary in a Coal Mine: Kaguya theorizes in Cage in Lunatic Runagate that Eirin may have given Reisen the name "Udongein" because on the Moon the flower is used to detect impurity, and so through her Kaguya and Eirin can see how impure they've become.
• Character Development:
  • 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.
• Confusion Fu: 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 temperament in Scarlet Weather Rhapsody manifests as Mountain Vapor, which hides the current spell cards the opponents are using.
• Cultural Posturing: Occasionally shown to look down on Earthlings for being inferior to Lunarians. Notably in Silent Sinner in Blue she bursts into laughter on seeing Remilia's attempt at building a spaceship, only to be corrected by Eirin that it's astonishingly well-designed.
• Creepy Good: Post Character Development she's a nice girl who will occasionally even help solve incidents, but she still has the power to induce insanity with her eyes. This is best seen in Antimony of Common Flowers with her Last Word "You've Already Gone Mad!," which gives us this.◊
• Deflector Shields: 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 Mercy Invincibility afterwards.
• Disability Immunity: 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.
• Doppelgänger Spin: Some of her attacks in Urban Legend in Limbo involve making illusory versions of herself all shooting at once.
• Double Meaning: 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.
• Explosive Overclocking: 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.
• Eye Beams: 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.
• Facial Profiling: In Forbidden Scrollery 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.
• Fatal Flaw: Eiki says in Phantasmagoria of Flower View that her cowardice and selfishness are her greatest sins.
• Finger Gun: Scarlet Weather Rhapsody, Urban Legend in Limbo, and Antimony of Common Flowers have her use her fingers as pistols to fire danmaku. This, for example, shows it off.
• Friendly Enemy: Despite technically being enemies due to Mokou's feud with her master 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.
• Glowing Eyes of Doom: Reisen's eyes tend to glow when she's using her mind altering powers.
• Going Native: Despite Reisen's moments of Cultural Posturing when it comes to comparing the Moon to Earth, 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.
• Gun Fu: Her fighting style in Urban Legend In Limbo and Antinomy of Common Flowers involves gunplay combined with kicks and acrobatics.
• Gun Twirling: 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.
• Guns Akimbo: Her "Moon Surface Ricochet (Lunatic Double)" spell card in Urban Legend in Limbo has her fire using two guns rather than just one.
• Haughty Help: When Reisen is first introduced she's a Dirty Coward who frequently mocks Earthlings for being inferior to Lunarians, despite being merely one of the Moon Rabbits who serve them. This extends to her bossing around Earth rabbits like Tewi, seemingly unaware that the Lunarian exiles she works for are guests in Tewi's house. However, Reisen's extended time on Earth eventually leads her to become fully mortal and essentially go native, picking up a good deal of humility, sentimentality, and even courage in the process.
• Hidden Depths: 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.
• Humanity Is Infectious: Or something like that, though the actual reason is less Curiosity Causes Conversion and more Fisher Kingdom. 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.
• I Am Not Weasel: A Moon Rabbit who moves to Earth and starts calling herself an earth rabbit, despite being a different species. Most Earthlings treat her the same as the earth Youkai rabbits, which technically isn't true, but Reisen probably wouldn't have much success in trying to explain the difference.
• Improbable Weapon User: Her secondary weapon in Urban Legend in Limbo is a mochi hammer used in tandem with the kunekune.
• 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: "Lunatic Eyes ~ Invisible Full Moon."
• Little Bit Beastly: She's a Moon Rabbit that looks mostly human save for her ears and tail.
• Loners Are Freaks: 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.
• Master of Illusion:
  • She can use her Magical Eye to bend light or mess with her enemies' senses directly, enough to cause lunacy to the target. Ironically, given her powers, she is said to be 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.
• Meaningful Name: 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.
• Meaningful Rename: On the moon she was known simply as "Reisen"... or at least 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 "Rei'sen" for clarity. Can be considered an inversion of sorts of Name From Another Species.
• Mind Rape: 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.
• Moon Rabbit: She's a formerly moon-dwelling rabbit, 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.
• Moral Myopia: In 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 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.
• Morph Weapon: In Urban Legend In Limbo her pistol is revealed to have the ability to change its size and transform into rifle and shotgun variations.
• Mundane Utility: In Forbidden Scrollery she uses her knowledge of waves to create and sell an ultrasonic pest repellent.
• No Good Deed Goes Unpunished: 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.
• Not Me This Time: 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.
• "Not So Different" Remark: One of her victory quotes against Mamizou has her mention that both rabbits and tanuki are seen as villains in stories.
• Older Than She Looks: She looks like she's in her twenties, although Kaguya's profile suggests she's at least fifty-three.
• Only Sane Woman:
  • Ironic since she's a master of 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.
• Power Nullifier:
  • Her power over waves makes the stealth abilities of the 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.
• Pre-Final Boss: In the A route, she's the penultimate boss of Imperishable Night.
• Red Eyes, Take Warning: When she's using her Lunatic powers her red eyes will start glowing. This is also shared by her kunekune Urban Legend.
• Righteous Rabbit: Post-Character Development, she's portrayed as a kind and levelheaded Moon Rabbit who will occasionally help solve incidents.
• Shout-Out: Reisen has 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 down the barrel of a gun.
• Sonic Scream: Reisen's pistol in Urban Legend in Limbo resembles a megaphone, and she can scream into it to blast her opponents with sound waves.
• Sour Supporter: Reisen will follow orders, but don't expect her to be happy about it. According to Doremy, even this level of actual loyalty is rare for a moon rabbit, and Reisen probably only developed it after she came to Earth.
• Species Surname: Like Tewi, she has the surname "Inaba" because Kaguya can't tell all the rabbits apart.
• Statuesque Stunner: 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.
• Swiss-Army Superpower: Her power over waves has a huge number of uses, albeit most of them boil down to "sense things" or "confuse enemies".
• Telepathic Spacemen: All Moon Rabbits 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 Cage in Lunatic Runagate, Eirin has her asking other moon rabbits about rumours about spies and an incoming attack from Earth. 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 screw with their minds.
• You Can't Go Home Again: 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 so she wouldn't be allowed to stay even if they did let her back.
• You Cannot Grasp the True Form: Some of her spell cards work by using wavelengths that normal humans can't perceive.

Eirin Yagokoro

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.

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• Alchemy Is Magic: She makes immortality potions along with her varying medicines and potions.
• Almighty Janitor: 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 lack of ambition. She is also much stronger and smarter than Kaguya, her current master, but holds back her full strength out of respect.
• Aloof Archer: 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 and effectively a Space Elf to boot.
• Ambiguously Human: 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 Touhou Bougetsushou.
• The Archmage: 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."
• Badass Bookworm: 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).
• Been There, Shaped History: She is implied in an ingame spell-card description to have been responsible for the failure of the Apollo 13 mission.
• Beware the Nice Ones:
  • 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 Silent Sinner In Blue she sneaks up behind Patchouli Knowledge with an arrow in hand, with the implication that she plans to stab Patchouli In the Back in order to stop the rocket launch. However, Patchouli notices Eirin and manages to defuse the situation, after which they have a polite chat.
• Break the Haughty: 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". In fact, that was the entire point of her 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.
• Chemistry Can Do Anything: 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 Complete Immortality or allow for in-universe Save Scumming). Sometimes overlaps with Quantum Mechanics Can Do Anything.
• Cosmic Motifs: Eirin's dress is lined with constellations.
• Cuteness Proximity: Sees Medicine Melancholy as cute and harmless, despite Reisen's warnings that she attacks people with deadly poison. Then again, Eirin doesn't have much trouble dealing with poison.
• Dark and Troubled Past: 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.
• Did We Just Have Tea with Cthulhu?: Neither Yukari nor Eirin recognize each other from the first Lunar War. 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.
• Did You Just Punch Out Cthulhu?: During the first Moon Invasion when Eirin was still a respected sage, Yukari of all people got caught in one of her traps. The gap youkai still bears a grudge for that...
• Dragon-in-Chief: Noted to be both stronger and harder than the final boss Kaguya, as well as the mastermind behind the game's conflict.
• Dressed to Heal: Eirin dresses in a nurse's outfit and serves Gensokyo as a doctor.
• Duality Motif: According to ZUN in the Watatsuki sisters + Reisen II segment of Who's Who of Humans & Youkai, it's Eirin's belief that all things are one side of a half, hence why her clothing alternates between blue and red.
• Final Boss: The last boss of the A-route of Imperisable Night.
• Flight, Strength, Heart: While not useless by any means, Eirin's signature ability, to make any kind of medicine, might seem like an underwhelming one in the land of Gensokyo. Granted, being a super genius on top of that is cool and all, but is it really gonna help her against someone who can blow you up with nary a tho- oh, she's also immortal? Alright then. That's a really solid combination, if a bit lacking in offensive pow- what do you mean, she is also a master of magic, 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?
• The Heavy: Instigated the events of Imperishable Night with her plan to seal off Earth from the moon.
• Hypercompetent Sidekick: 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.
• Immortality Immorality: Taking the Elixir is this in the Lunarians' eyes (it's a blight on moon purity), and her making it made her crime worse.
• Insufferable Genius: 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.
• I Did What I Had to Do: 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.
• Leitmotif: "Gensokyo Millennium ~ History of the Moon".
• Manipulative Bitch: Save for Kaguya, she has no issue using others as pawns if necessary for a plot, even her own pupils Reisen and the Watatsuki sisters.
• The Medic: Eirin is Gensokyo's resident doctor.
• Mystical White Hair: Eirin has white hair, which could be symbolic of her strong magical powers, her status as a deity, her uncertain history, her nature as a Lunarian, or all the above.
• Our Gods Are Different: Very heavily 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.
• Outside-Context Problem: It's saying something when 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.
• The Paragon Always Rebels: 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.
• Pet the Dog: 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.
• Pillars of Moral Character: While she rarely seems to actually care 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 the Eirin she knew on the moon would not have done the latter, which suggests that becoming impure is starting to affect Eirin's mindset.
• Playing with Syringes: Kaguya claims she was like this a long time ago when she reached the Earth, seeing its inhabitants solely as test subjects. She appears to have chilled somewhat since then, though she still shows a darker side at times.
• Pre-Final Boss: Is the midboss of Stage 6's B Route, with Kaguya's fight happening right afterwards.
• The Professor: Has absurd intelligence and scientific aptitude even by Lunarian standards. She mastered quantum teleportation in the Stone Age. She may or may not be the inventor of magic. Listening to her physics lectures has been known to give people Enlightenment Superpowers. When they call her the "Brain of the Moon", it's for good reason.
• Proud Scholar Race Girl: 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.
• Really 700 Years Old:
  • Likely 2000+ years old, but some vague hints suggest she may be 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 Cage in Lunatic Runagate). 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 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.
• Shout-Out: One of her spellcards is named after Conway's Game of Life.
• Signature Headgear: Wears a blue nurse cap with constellation patterns framing a red cross.
• Space Elf: Lunarians are extremely long lived people who look down on humans for not having the same utopian lifestyle that they do. IN SPACE!.
• Statuesque Stunner: Generally depicted as the tallest inhabitant of Eientei, and one of the tallest characters in the franchise period. Notably Forbidden Scrollery depicts Reisen as being quite tall compared to the inhabitants of the Human Village, but at least a head shorter than Eirin.
• Subordinate Excuse: 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.
• Time Abyss: Likes to brag about her "infinite age" compared to other characters who are merely centuries old.
• Took a Level in Kindness: 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.
• The Unpronounceable: Her real name cannot be pronounced by humans, and is always shown blanked out. The same applies for Chang'e, so it might be a common trait for Lunarians.
• Willfully Weak: 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 the Watatsuki sisters after all.

Kaguya Houraisan

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 The Tale of the Bamboo Cutter, the oldest known example of Japanese literature and quite possibly the original Science Fiction tale.

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• Ambiguously Human: 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, leads to the events of Touhou Bougetsushou.
• Amulet of Concentrated Awesome: 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 Sitcom Archnemesis than someone she truly hates.
• The Collector:
  • 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 Fate/stay night.
  • 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. Not to mention that the temple had burned down once before.
• Cycle of Revenge: It is stated that she kills Mokou back as often as Mokou kills her.
• Desperately Looking for a Purpose in Life: As revealed in Cage in Lunatic Runagate she wants an actual purpose besides sitting around in Eientei.
• Everything's Better with Rainbows: Her Impossible Request "Dragon Necklace", Impossible Request "Rainbow Danmaku", and "Tree-Ocean of Hourai" spellcards and their variations.
• Fairy Tale: She's literally a fairy tale Princess.
• Hikikomori:
  • Rarely leaves Eientei, except to pick fights with Mokou - and even then, prefers to send assassins at her. But Cage in Lunatic Runagate reveals that Kaguya rather wants to leave the mansion, explore Gensokyo and interact with its people... or at least find something to do. It's revealed in Foul Detective Satori that she does sneak into the Human Village sometimes, escorted around by Mokou of all people.
  • 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.
• Hime Cut: Being based off of Kaguya-Hime, it's hardly a surpise that she sports a tradition Japanese noblewoman's hairstyle.
• Impossible Task: 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 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.
• Immortality Immorality: Notable for managing this even in a Society of Immortals. 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.
• Informed Attractiveness: She was famous for her beauty in the past and attracted many suitors (Mokou's father being among them), though she's drawn with the same Generic Cuteness as everyone else in the series.
• Leitmotif: "Flight of the Bamboo Cutter ~ Lunatic Princess".
• The Nicknamer: 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.
• Out of Focus: Despite being the True Final Boss of Imperishable Night and one of the most famous folk-characters in Japan, Kaguya's role in official material has been largely pushed to the background in Eirin and the rabbits, amounting to a secondary role in Bougetsushou, one of Reisen's endings in Legacy of Lunatic Kingdom and a role in the third arc of Foul Detective Satori. Even Tei, a character who wasn't even named in her debut, has made more appearances than her.
• Pretty Princess Powerhouse: She's designed to look like the Japanese idea of the Princess Classic (particularly with her Hime Cut 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).
• Princesses Prefer Pink: She wears a pink shirt with wide sleeves and is a Lunarian princess.
• Public Domain Character: Is the series take on one of Japan's most famous folktales, simply showing what happened after Kaguya returned to the moon.
• Rebellious Princess: Kaguya was originally exiled to Earth for the crime of 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.
• Route Boss: You can only fight her in Imperishable Night by going down the B-route.
• Shout-Out: In Shoot the Bullet, One of Kaguya's spell cards directly refers to The Red Stone of Aja, a McGuffin from JoJo's Bizarre Adventure.
• Super-Strength: 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.
• Time Master:
  • 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 Time Master than Sakuya.
  • Additionally, when you face Eirin and reach her final spellcard, Kaguya ends up joining in, and the game timer actually slows down as you progress through it- and since it happens even if the frame rate stays at its consistent 60 FPS, it's implying that Kaguya's using her power of Eternity to make the attack last longer.
• True Final Boss: 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.
• World's Most Beautiful Woman: What Princess Kaguya was in "The Tale of the Bamboo Cutter", a woman considered the most beautiful in all Japan.

Fujiwara no Mokou

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 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.

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• Ambiguously Human: It isn't made very clear just how human Mokou is anymore. On one hand, her species is referred to as "Human", unlike many other trans-humans like Byakuren (youkai magician), Tenshi (Celestial), and Miko (Hermit). However, the effects of the Hourai Elixir means that she is way above any regular human, with her regeneration abilities possibly meaning that her original body is effectively gone. This is further made confusing by the fact that Mizuchi is able to possess her like she was a youkai, suggesting that she is definitely not just a human anymore.
• Animal Battle Aura: Adapts an aura shaped like a phoenix for her spell cards. Many fanworks portray them as wings of fire instead.
• Animal Motif: Associated with The Phoenix, 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.
• Badass Boast: "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!"
• Bait-and-Switch Boss: 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.
• The Berserker: Her general fighting style in Urban Legend in Limbo. This however does not come from her fighting in Hot Blood, but rather from her own disregard and abuse of her own body.
• Blue Blood: She's a scion of the powerful Fujiwara clan, though you'd never guess from looking at her that she's technically a noble.
• Blood Knight: She used to be bloodthirsty half a century ago, but has mellowed out over time. On one hand, she's not actively looking for a fight (unless it's Kaguya, in which case the fandom will have her busting down walls on some occasions to fight her), but if anyone is brave or stupid enough to challenge or annoy her, she won't say no to a fight. If it's just some faceless youkai, she'll usually accept out of boredom/annoyance, but if it's Kaguya, other immortal beings such as the Taoist hermits or celestials, or someone she knows is powerful like Reimu or Marisa, reactions in-universe and in fanfiction can range between a Grin of Audacity to a Psychotic Smirk.
  Mokou: [After learning about Futo being immortal] "Hehehe, well that's a shocker. How interesting. I accept your challenge! Let's have a match to see which of us dies first!"
• Boisterous Bruiser: Very much 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 Antinomy 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).
• Bored with Insanity: Went crazy for about three centuries by her reckoning, or so she tells Keine in Cage in Lunatic Runagate. She 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.
• Cannot Dream: Downplayed. Doremy Sweet notes that the version of Mokou in the Dream World (who is supposed to have exaggerated versions of her emotions and desires) is unusually quiet, and wonders if she's grown weary of dreaming.
• Cast from Hit Points: Keeping with the Glass Cannon 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 "Resurrection" that restores the self-damage done by her fire attacks but leaves her vulnerable, making playing her a delicate balancing game.
• Charles Atlas Superpower: 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.
• Close-Range Combatant: In Urban Legend in Limbo, her fighting style is stated to favor melee attacks more than projectiles. But before then, it was not uncommon for those proficient in using MikuMikuDance to portray her as a Kyo Kusanagi-Moveset Clone due to the latter also being this trope alongside his own fire-integrated attacks.
• Combat Sadomasochist: Discussed, if Marisa defeats Mokou in Urban Legend in Limbo's VS mode she asks her if she's into burning herself on purpose during combat.
• Cycle of Revenge: She and Kaguya are constantly killing each other... with absolutely no success, since both are immortal anyway. Mokou seems to get some kind of catharsis from this. Evidence includes her character profile referring to their eternal stalemate as "magnificent", and in a chapter of Cage in Lunatic Runagate Mokou makes reference to "the joys of killing each other over and over."
• The Cynic: She has a very pessimistic outlook on the world. It's especially apparent in Urban Legend in Limbo, when her Death Seeker 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.
• Dark and Troubled Past: Kaguya embarrassed her father (and by extension, her whole family) because the latter presented her with fake items of her impossible requests. Mokou has detested Kaguya ever since. It only got worse from there, though conveniently enough her past since then is sorted in 300 year sections of time:
  • After Kaguya shamed her father, Mokou sought to get back at her by stealing an item Kaguya left for the Emperor of Japan that was in transit to be destroyed. This item would turn out to be the Hourai Elixir and Mokou gave in to temptation and killed the man who was holding it and took it for herself, something she would later regret.
  • 300 years of ostracism from her family and society as a whole later, she grew to resent the world and went full Blood Knight on anything and anyone brave or stupid enough to come across her. It was through fighting that she felt she could "preserve the faintest sense of identity" she still had. However...
  • After 300 years of fighting she grew tired of fighting and eventually just stopped, doing absolutely nothing for a long period of time.
  • Eventually, after spending 300 years in tedium, she found out Kaguya had returned to Earth and thus continued her Cycle of Revenge with the one who started it all.
• A Day in the Limelight: 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.
• Death Seeker: 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 in order to see if she can finally die by opening the gates to the underworld. While she seems to drop the idea after getting to Kasen, during Reisen's story she hasn't quite given up on trying to die permanently.
• Demonic Possession: 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. Becomes a Mythology Gag when she possesses Reimu in Reisen's story in Urban Legend in Limbo.
• The Determinator: 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.
• Disproportionate Retribution: 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.
• Edible Ammunition: According to the Grimore of Marisa, her Immortal "Fire Bird -Flying Phoenix-" spell card uses a large amount of yakitori for bullets.
• Elemental Kick: Uses fire-based kicks in her fighting game appearances.
• Extremity Extremist: Urban Legend in Limbo has her primarily uses kicks when fighting.
• Fireballs: Most famously uses phoenix's tail-themed fireballs.
• 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 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 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 pyromania.
• Forgets to Eat: Only one of the many ways in which Mokou neglects her immortal body is not eating. 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.
• Gameplay and Story Integration: In Antimony of Common Flowers, she offhandedly mentions that she prefers to fight as the slave. In gameplay, playing her as the slave helps mitigate her weakness, as the green health she drains gets regenerated and the leftover grey health is still used as a slave.
• Glass Cannon: A funny case - an attentive player can see her dying after each emptied lifebar... and respawn right off the bat. She seems to have some trouble coming back for her last card.
• Hands in Pockets: Of all the hands that ZUN hides, hers are the only ones that are actually kept in pockets. In Urban Legend in Limbo, it's her default stance.
• Hidden Heart of Gold:
  • 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, completely unaware of everyone else's plan to scare her senseless.
• Hime Cut: 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.
• Historical Domain Character: 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. In-Universe, she's presumed to be an unwanted child due to not being allowed out in public (whether it's because of her tomboyish nature or her fire-abilities is unknown).
• Hot Wings: Her aura manifests in the shape of phoenix wings. Fandom sometimes gives her actual wings.
• Immortality: She'll keep resurrecting indefinitely, though that doesn't mean that getting killed doesn't hurt. Akyuu mentions that Mokou can regenerate if even a single hair of her is all that's left. This applies for Kaguya too, but Mokou uses it more.
• Immortal Life Is Cheap: Mokou and Kaguya are constantly literally killing each other and reviving time after time so this comes naturally.
• Ineffectual Loner: Save for Keine she normally keeps to herself when not fighting Kaguya.
• Inter Generational Friendship: In Urban Legend in Limbo, she develops one of these with the teenage Sumireko after they fight twice.
• It's Personal: 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.
• Kaizo Trap: 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: Her Stage theme is "Extend Ash ~ Hourai Victim" and her Main theme is "Reach for the Moon, Immortal Smoke", which would later get an unusually funky, but nonetheless awesome, remix in Urban Legends in Limbo.
  • Speaking of which, there are a couple of songs from Urban Legends in Limbo and it's continuation "Antinomy of Common Flowers'' that, while not completely exclusive to Mokou, are heavily associated with and indirectly named after her. The former gives us "Bamboo Forest in Flames," with a remix in Reisen's Extra Story scenario, "Neo Bamboo Forest in Flames." The latter gives us "Immortal Red Soul".
• Locked Out of the Loop: During the events of Urban Legend in Limbo, Mokou spends the majority of the story with effectively no idea what is actually going on, due to her isolation making her unaware of the ongoing incident.
• Locked into Strangeness: Prior to drinking the Hourai Elixir her hair was black, but it eventually turned bluish-white over the centuries.
• Magic Pants: Justified; her overalls have ofuda charms plastered across that prevent them from burning away like her shirt does.
• Moment of Weakness: 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.
• My God, What Have I Done?: According to Cage in Lunatic Runagate, 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.
• No-Sell: Yuyuko's death inducing power has no effect on her.
• Only Friend:
  • Keine has been her only friend for an indeterminate period of time.
  • Urban Legend in Limbo seems to subvert this by Mokou expressing interest in befriending Sumireko, Futo, and Miko.
• Playing with 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 surrounds herself with an aura shaped like bird wings... which adds more symbolism about her immortality.
• Power Gives You Wings: Can sprout flame wings.
• Promoted to Playable: Makes her debut as a playable character in Urban Legend in Limbo.
• Razor-Sharp Hand: In Chapter 40 of Wild and Horned Hermit she slices a bamboo stalk in two with her bare hand.
• Revenge Before Reason: Kind of inherent in a cycle of revenge murders between immortals.
• The Rival: To Kaguya, having killed each other numerous times over the centuries.
• Saved for the Sequel: 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.
• Shaping Your Attacks: Some of her spell cards shoot blasts of fire shaped like birds.
• Shout-Out:
  • Her Immortal "Fire Bird -Flying Phoenix-" and Hollow Giant "Woo" spells cards reference both Saint Seiya and 3×3 Eyes.
  • Her Everlasting "Phoenix's Tail" spell card is a direct reference to the Final Fantasy series, as it's the Japanese name for Phoenix Down.
  • One of her intro animations in Urban Legend in Limbo is an Akuma pose.
• Sleeves Are for Wimps: 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.
• Sphere of Destruction: 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).
• Spontaneous Human Combustion: Her "urban legend" in Urban Legend in Limbo focuses on the human combustion urban legend. Of course, it is more like a case of self-immolation with her setting herself suddenly on fire and she can recover from it what with being immortal.
  • Notably, Mokou is one of the only characters to not notice that she obtained human combustion as her urban legend in the first place (usually, you're able to choose one yourself), partially due to this already being part of her fighting style and partially because her reclusiveness has allowed her to remain blissfully ignorant of the incident for the most part.
• Standard Power-Up Pose: She takes the iconic pose whenever she uses any of her self immolating abilities in Urban Legend in Limbo.
• Suicide Attack: Tends to show little regard for her own safety in combat, to the point where she dies (and respawns) after every spell.
• Superboss: She's the Extra Stage boss of Imperishable Night, and by extension the toughest battle in the game.
• Tomboyish Ponytail: In her redesign for the fighting games she has her long hair tied up in a pretty big ponytail. It goes well with her masculine clothing.
• True Final Boss: She's the last boss of the PS4 version of Urban Legend in Limbo in Reisen's campaign, which takes place after the events of Reimu's final scenario.
• Tsundere: Despite her grudge against Kaguya, she also feels that they mitigate each other's immortal loneliness as no one else can, even with Kaguya being firmly on the Living Forever Is Awesome side of things. Cage in Lunatic Runagate has her explaining to Keine how terrified she was when she heard about the Moon rocket in Silent Sinner in Blue. She thought Kaguya was taking it to the Moon and was going to leave forever.
• The Unfavorite: Due to the fact that Mokou wasn't allowed to go out in public, it's believed that she was an unwanted child.
• Who Wants to Live Forever?: 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 from a 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 Living Forever Is Awesome, although she seems to have come to terms with her situation, finally.
• Winged Humanoid: 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. Otherwise, she at least appears human.
• Wreathed in Flames: Her central mechanic in Urban Legend in Limbo is to light herself ablaze to boost her abilities at the cost of health.

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