Phantasmagoria of Flower View. "Udongein" and "Inaba" are both nicknames, the first given her by Eirin and the second Kaguya; the latter is what Kaguya calls all rabbits. Despite her power over insanity, Reisen is portrayed as one of the most level-headed and serious characters in the series. According to a series of yonkoma manga, Inaba of The Moon and Inaba of The Earth, despite the care she generally got, Reisen is often abused by her mistress Kaguya and teacher Eirin. She is also often the subject of many pranks made by Tewi. However, it is important to note that Inaba of the Moon and Inaba of the Earth's canonicity is highly debatable, due to its nature being comedic and over-the-top, as befits a yonkoma, its events also being contradictory to established facts, and the fact that ZUN was only loosely involved in its creation. Species: Human (Lunarian) Ability: Power to create any drug, natural genius Residence: Eientei Boss of Final Stage A and midboss of Final Stage B. A genius pharmacist who once lived on the moon. Kaguya persuaded her to produce the forbidden Hourai Elixir (the elixir of life) and consumed it. They were found out, but only Kaguya was punished and sent to the Earth, a fact which Eirin always felt guilty about. The Moon Court eventually pardoned Kaguya and summoned her back. Eirin and a handful of emissaries were sent to retrieve her, but Eirin found out that Kaguya didn't want to return to the moon. Acting out of her past guilt, Eirin betrayed and murdered all the other emissaries under the eyes of the earthlings who had fostered Kaguya. Eirin bribed the earthlings with the Hourai Elixir, in order to keep them silent, and went into hiding with Kaguya in Gensokyo. She is based on the Japanese goddess Omoikane. Species: Human (Lunarian) Ability: Manipulation of eternity and the instantaneous Residence: Eientei Boss of Final Stage B, Kaguya is actually the Princess Kaguya from The Tale of the Bamboo Cutter. A princess of the moon, after consuming the forbidden Hourai Elixir and becoming immortal, she was punished by being exiled to live on the Earth. Later, she was pardoned and ordered to return to the moon. However, she preferred her common life on Earth to that as a princess on the moon. Eirin helped her escape the emissaries, and the two went into hiding in Gensokyo.