Reisen Udongein Inaba
Reisen Udongein Inaba (鈴仙・優曇華院・イナバ) is one of the moon rabbits who fled from the Moon to Earth as a refugee from the "Lunar War" between the two worlds that began in 1969 A.D. after the Apollo 11 "invasion". Making her way to Gensokyo, she was surprised to meet the notorious fugitives Kaguya Houraisan and Eirin Yagokoro, and asked for asylum in Eientei. In exchange, she works for and protects Kaguya and Eirin.
Reisen Udongein Inaba
ɺ̠e̞ːsẽ̞ɴ ɯᵝdõ̞ŋɡ̃e̞ĩɴ ina̠βa̠ (♫)
Reisen U. Inaba, Reisen Inaba
Reisen Udongein Inaba in Antinomy of Common Flowers
More Character Titles
Manipulation of insanity and wavelengths
Unknown, at least 53 years old.
- "You're too late. I've sealed all the doors. You can't take the princess away now, can you?"— Reisen Udongein Inaba (Imperishable Night Stage 5.)
Reisen first appeared as the Stage 5 boss Imperishable Night and later became playable in Phantasmagoria of Flower View, Scarlet Weather Rhapsody, Legacy of Lunatic Kingdom and the PlayStation 4 version of Urban Legend in Limbo. She also appears in many official manga such as Silent Sinner in Blue and Cage in Lunatic Runagate.
Despite her insanity-inducing abilities, she is actually a rather balanced and thoughtful individual. She has a high level of generalized anxiety, and appears to be constantly afraid of being punished by her superiors, as seen in her bad ending of Legacy of Lunatic Kingdom. This may be due to her history of being slave in the Lunar Capital and a contributing factor to why she fled in the first place. Despite her relative degree of freedom while living at Eientei in Gensokyo, she still desires to make herself useful to others as much as possible, even at personal expense.
- Manipulation of Wavelengths/Insanity
Reisen has the ability to sense and manipulate waves of all kinds, her red eyes often acting as a means of inducing insanity. Her signature use of this ability is manipulating another person's perception to the point of inducing madness or hallucinations depending on the strength of her opponent's will. By increasing the frequency of brainwaves she can make a person short-tempered and irrational, or by reducing them can leave her target apathetic and depressed.
Reisen can also manipulate light and sound waves to deceive the senses such as by concealing the paths of her danmaku, to creating after-images of herself, to casting wide-area illusions that cause people to get lost. Finally, she is capable of releasing waves from her eyes in a destructive blast.
Reisen is immune to the abilities of the Three Fairies of Light (seeing an invisible Sunny Milk, hearing a silent Luna Child and escaping Star Sapphire's detection) since they are based on waves, though she seems unable to replicate Star Sapphire's abilities with her own.
- Moon rabbit abilities
Moon rabbits can send "ESP waves" and receive them with their ears, forming a sort of psychic network where they share feelings and rumors. Reisen can still participate in this network despite the physical and spiritual distance between Gensokyo and the Moon.
Formerly Reisen was a Moon Rabbit in service of the Lunarians. Moon Rabbits are seen as tools by Lunarians and are used for a large variety of menial labour including farming, pounding medicine, cleaning and as soldiers in the Moon's war effort. However, sometime in the Lunar War, Reisen deserted the Lunar Capital and fled to Earth.
After seeking refuge from Eientei, Reisen now serves Eirin and Kaguya. She effectively performs as their housekeeper doing manual errands for them. Eirin operates as Reisen's mentor in medicines. She also sends her to the Human Village where she sells medicine to humans at an affordable price.
- Megaphone-shaped Handgun
Starting with Legacy of Lunatic Kingdom, Reisen equips a handgun in a shape of a megaphone. She uses to fire bullets and mainly soundwaves at her foes. It can change the size to function as a shotgun and even use like a real megaphone. Reisen has two in her possession which she dual-wields. 
Throughout the Touhou Project, she is always referred to as a moon rabbit. However, in Legacy of Lunatic Kingdom, Reisen realizes that living on Earth for too long has tainted her with impurity. This allows her to save the Lunar Capital, as only someone with impurity could face Junko, the game's primary antagonist. Knowing that she can no longer return to the Lunar Capital or being a moon rabbit again, she now proudly proclaims herself to be an earth rabbit of Gensokyo.
Her full name is Reisen Udongein Inaba (鈴仙・優曇華院・イナバ), which is often abbreviated to Reisen U. Inaba (鈴仙・Ｕ・イナバ). Originally, her name was written in katakana as "Reisen" (レイセン), but in order to blend in on Earth, she changed the spelling to "Reisen" (鈴仙) and adopted the surname "Udongein" (優曇華院) from Eirin Yagokoro. Note that "gein" is pronounced the same way as the English word "gain"; her name should be written as "Udonge'in" in romaji and possibly as "Udongeïn" in French ― the noun "udonge" and the suffix "-in" are analyzed to the different morphemes and it keeps the two vowel's separation. "Inaba" (イナバ), drawn from Tewi Inaba, is a name Kaguya Houraisan uses for all the rabbits in Eientei as she has trouble distinguishing between them.
In canon, Eirin Yagokoro is the only one who is allowed to call Reisen by the name "Udonge" or "Udongein", though she also calls her "Reisen" from time to time, particularly when she is not present. Kaguya is seen to use both "Inaba" and "Reisen".
The characters for Reisen literally mean something like "bell hermit", and Udongein "house of plantain flowers". Titles ending in 院 ("-in") were typically granted to Japanese noblewomen in their old age to indicate their special contribution to a temple or their high place in society, and carry a sense of great nobility and culture. This title is similar to posthumous names, called ingou (院号); examples include Kenreimon-In and Taikenmon-In.
There are several theories of where the name Reisen came from.
- reisen (醴泉), meaning "spring of sweet water" - some say that this was the source of the immortality elixir in the Chinese legend of Chang'e.
- reisen (霊蟾), meaning "spirit toad", but which due to a confusion led by the kanji is now used to refer to moon rabbits or the Moon itself.
- reisen (冷戦), meaning "Cold War", the time at which human exploration of the Moon started. (see the notes on Reisen's spell cards).
- reisen (零戦, also called zero-sen), meaning "Zero-Fighter", a nickname for the famous Mitsubishi A6M Zero fighter plane, which may be a reference to Reisen's military background (see also Imperishable Night/Music). However, this name connection has been stated to be irrelevant by ZUN in Strange Creators of Outer World.
Incidentally, in German reisen means "travels" or "voyages" as well as "to travel". There is also a species of rabbit known as the Deutsche Riesen (German), but this origin is generally thought unlikely. More loosely, reisen is a definite singular for reise in Norwegian, which means "journey" or "trip".
In Imperishable Night Reisen has red eyes, long light-purple hair and long rumpled rabbit ears - like all members of the Lunar Defense Corps, her ears stand up straight and are decorated with two accoutrement-like buttons. Her outfit consists of a long-sleeved black business suit over a white shirt, along with a beige skirt, white socks and red shoes. Her left lapel is decorated with a crescent moon-shaped insignia, and a pocket square in her left shirt pocket.
In Phantasmagoria of Flower View Reisen's jacket is removed and she wears a purple skirt. There is a clip on her necktie in the shape of a carrot, identical to Tewi Inaba's. Her alternate outfit makes her shirt black and her tie yellow.
In Scarlet Weather Rhapsody, she wears a short-sleeved white shirt, a red belt and a blue skirt. Her alternate outfit gives her a dark green dress, ears and eyes, and a light green shirt and hair.
In Legacy of Lunatic Kingdom, she wears the same short-sleeved shirt, but with a violet belt and a light red skirt.
In Urban Legend in Limbo, she wears an outfit similar to her previous playable appearance, with the exception of her skirt, which now has a white horizontal stripe near the bottom of the skirt, and her belt, which is now red. The carrot-shaped necktie clip is larger compared to her previous one. Her hair now reaches past her legs and her socks are now unfolded and reach her knee. Her tail is noticably large in her artwork in the game.
- Imperishable Night
Reisen's début was in Imperishable Night as the stage 5 boss. Here, Reisen hid within Eientei to avoid any lunar emissaries that might arrive on Earth and force her to return to the Moon. She was tasked with sealing the doors inside Eientei to ensure that Kaguya Houraisan could not be found by the emissaries either. She used her power of insanity to stop the heroines from invading Eientei, but was defeated. Reisen's power of insanity comes from her eyes; she uses them to refract and twist waves, disorienting and confusing her victims and deceiving them with frightening illusions. Unfortunately for Eientei, she forgot to seal the door that Kaguya was hiding in, and thus the heroine was able to enter it.
- Phantasmagoria of Flower View
In Phantasmagoria of Flower View, she worries about Tewi Inaba running off and seems more level headed than most other characters. Although she doesn't know what's causing the flower incident, she's decided to investigate by going wherever the flowers are blooming.
- Legacy of Lunatic Kingdom
Reisen returns as the fourth playable character in Legacy of Lunatic Kingdom. When playing as her, she can shoot white bullets upwards and have purple bullets spread as a wide shot. If focused, all her bullets will shoot directly vertical. She has eyes and surround her to shoot the purple bullets, and if her power increases, she can shoot more bullets. Her bomb is unique in that, rather than turning invincible and damaging enemies, she'll instead have three red rings around that, basically, gives her three extra lives. If all lives aren't used by the end of the stage, then the bomb will end.
In her scenario, like her human allies, Reisen is given the Ultramarine Orb Elixir by Eirin Yagokoro and she was ordered to travel to the Moon and stop the incoming invasion from the Lunar Capital. She knew how to get there; use the Dream World. After taking care of Seiran and Ringo on the Youkai Mountain, she bumps into Doremy Sweet in the Dream World. After defeating her, she finally makes it to the Lunar Capital, realising that the place is empty. There, she encounters Sagume Kishin, who after tests her ability, gives her a new mission to save the Lunar Capital from its own invaders. This is why the capital is invading Gensokyo. Due to her impurity, she is able to confront the one behind the incident. She flies over the Sea of Tranquility and takes care of fairies from Hell, including Clownpiece. She then confronts Junko, the one Eirin and Sagume wanted Reisen to take care of. Eventually, she is finally defeated.
In the Extra stage, the lunarians have yet to return from the fake capital in the Dream World; this is because Hecatia Lapislazuli kept them sealed away. After fighting her along with Junko through a long battle, they were finally defeated.
- Shoot the Bullet
- Scarlet Weather Rhapsody
During the events in Scarlet Weather Rhapsody, she appears in the Scarlet Devil Mansion to ask questions but is beaten by the furious Mistress. Later she inquires into the fate of the Hakurei Shrine and asks if the earthquakes are still going on. Failing to find clues, she later goes to Hakugyokurou to check its condition and to ask Yuyuko Saigyouji about the Shrine's destruction. She tells her about the "completion ceremony" of the new shrine, but when she goes there, the shrine is destroyed. She also meets Yukari Yakumo, who forbids her to investigate the shrine. Some time after the battle with Yukari, Tenshi Hinanawi suddenly appears and tells Reisen that earthquakes are just "fine".
- Touhou Hisoutensoku
If connecting SWR with Touhou Hisoutensoku, then Reisen can become a selectable character to play with, although she appears in no scenarios.
- Hopeless Masquerade
Reisen made a background cameo appearance in Hopeless Masquerade on the Human Village stage. She is seen sitting with Tewi Inaba, Eirin Yagokoro, and Kaguya Houraisan, waking up Kaguya who falls sleep from time to time.
- Urban Legend in Limbo
Reisen made her return in the PlayStation 4 version of Urban Legend in Limbo as a console-exclusive character. Her story focuses on the events after Legacy of Lunatic Kingdom. Her urban legend is "Kunekune".
- Antinomy of Common Flowers
Reisen's Dream World self escapes to Gensokyo and goes on a rampage, fighting everyone she comes across. As beings in their dreams are much more honest and emotionally unstable than in reality, this Reisen shows much more anger. The real Reisen is an opponent in a couple of other scenarios, as well.
- Forbidden Scrollery
In Forbidden Scrollery, Reisen appears as a traveling salesperson, dressing incognito in traditional Japanese peasant clothing, selling small cat-shaped devices that supposedly ward off mice and other pests by harnessing moonlight as a power source.
- Alternative Facts in Eastern Utopia
In Alternative Facts in Eastern Utopia, Aya Shameimaru writes multiple articles describing Reisen and the other residents of Eientei as being "immigrant drug dealers." The articles are never publicly published.
- Strange and Bright Nature Deity
In Strange and Bright Nature Deity Chapter 3, the Three Fairies of Light were rabbit hunting in the Bamboo Forest of the Lost until they bump into Reisen. Confused about why Star Sapphire couldn't detect Reisen, they run away from there. They are easy followed by Reisen, who guessed they were lost. She helps them get out of the forest, without losing the opportunity of complaining about Tewi Inaba, who she was looking for since the beginning.
- Foul Detective Satori
In Foul Detective Satori, Reisen appears as Eientei's gatekeeper, following Eirin Yagokoro's order. She later lead Orin to the place where they held the intruder from the night before, then stop Orin when she tried to contact with the intruder fearing that she could get possessed by the culprit.
Kaguya and Eirin took Reisen in when Reisen fled from the moon. Although Reisen does answer to Kaguya, their relationship is not as formal as the ones Reisen experienced on the moon with her former masters, and Kaguya seems to give her much more free reign.
Reisen's current master. Eirin has employed Reisen's telepathic abilities to gain intelligence on the Lunar capital. She also sends Reisen to the Human Village to sell her medicine.
Reisen helps Tewi manage the rabbits at Eientei, though Tewi's carefree nature seems to bother her.
Given Reisen's proximity to Kaguya Houraisan, it would be expected that Mokou might have negative feelings towards Reisen, but in their exchanges in Antinomy of Common Flowers, Mokou seems to think kindly upon Reisen despite her affiliations.
- Lunar Capital Relations
In Legacy of Lunatic Kingdom, she's shown indication of already knowing Seiran and Ringo, two moon rabbits, although little of their relationship with her is known. Additionally, despite having fallen to Earth and no longer having any status as a moon rabbit due to her impurity, she seems to still hold a high degree of reverence for Sagume Kishin, referring to her as "Lady Sagume (サグメ様 Sagume-sama), and is willing to carry out Sagume's order to save the Lunar Capital regardless.
Reisen artwork from Imperishable Night
Reisen artwork from Phantasmagoria of Flower View
Reisen artwork from Legacy of Lunatic Kingdom
Reisen artwork from Urban Legend in Limbo
Reisen's different color palettes from Antinomy of Common Flowers and Urban Legend in Limbo PS4, the last two were added in Antinomy of Common Flowers v1.10
Illustration of Reisen in Bohemian Archive in Japanese Red
Reisen with Tewi from Who's Who of Humans & Youkai - Dusk Edition
Reisen in Strange and Bright Nature Deity
Reisen with Eirin in Strange and Bright Nature Deity
Reisen in Silent Sinner in Blue
Reisen in Foul Detective Satori
- Reisen's right hand is often depicted to be making a gun shape, which leads to fan assumption that she shoots danmaku in this manner, and she indeed does in Scarlet Weather Rhapsody. Some fans even depict Reisen holding an actual handgun in artwork. Those are all based on ZUN's word that her normal shots were modeled after a bullet. The revelation in Silent Sinner in Blue that all Moon Defense Corps Rabbits are drilled with rifles suggests that Reisen can also use the real thing.
- In Legacy of Lunatic Kingdom she is effectively seen holding what seems to be a bunny-themed handgun. Same goes for the PlayStation 4 version of Urban Legend in Limbo where she is seen holding a rifle, complete with a magazine, that resembles her bunny-looking handgun. In both Urban Legend in Limbo and in Antinomy of Common Flowers, the handgun is seemingly able to transform into several different variants, including an automatic rifle and shotgun. Reisen is also seen dual-wielding the handguns in some attacks, so it's likely she has more than one. It's unknown whether she took them from the Lunar Capital when she fled or if somebody else made them.
- Reisen's alternate outfit in Scarlet Weather Rhapsody and Touhou Hisoutensoku is a homage to the Vocaloid Miku Hatsune. Her other alternate outfits in Hisoutensoku are also homages to fellow Vocaloids Rin and Len Kagamine, Luka Megurine, Meiko, Kaito, Gakupo Kamui and Gumi.
- In Urban Legend in Limbo, Reisen has an alternate color palette that resembles her outfit in Scarlet Weather Rhapsody, one that resembles Houraisan Kaguya and another that resembles Hatsune Miku.
- In her official profile of Legacy of Lunatic Kingdom, despite Reisen being a moon rabbit, she is marked as a human. This was stated to be an error by ZUN on the 28 May 2015 session of Nikenme Radio.
- Legacy of Lunatic Kingdom: Reisen's Scenario
- Kaguya's profile - Fled the Moon during the Apollo 11 Moon landing, also refered to as the "Lunar War" among some characters.
- Strange and Bright Nature Deity: Chapter 3
- Antinomy of Common Flowers
- Cage in Lunatic Runagate: Chapter One
- Silent Sinner in Blue chapter 8
- Each of Reisen's spell cards has two names: a kanji expression and its "pronunciation" in katakana. For example, the first one listed can simply be called Wave Sign "Mind Shaker".
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