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・Patchouli Knowledge
Abilities:Manipulation of fire, water, wood, metal, earth, sun, and moon
Theme song:Locked Girl ~ The Girl's Secret Room
Patchou Knowledge is one of the bosses in the Touhou Koumakyou the Embodiment of Scarlet Devil.
She is the witch and lives in Kouma castle.
Unlike Marisa and Alice, she is natural witch.
She is good at using elemental magic, and can use seven types magics.
She cannot inseparable from books, and nothing is better than reading books.
So she always spends her time in Kouma castle's big library and manage this library.
Also, the library is available not only for people from the Scarlet Devil Mansion, so Marisa and Alice visit it as well.
She's friends with the master of Scarler Devil Mansion, Remilia, so they call each other affectionate names like Remy or Patchy.
In both official works and doujinshi, they are together a lot.
In appearance, pink or purple hair and clothes are her characteristic features.
She looks rather young, but she's over 100 years old, since she's asthmatic, she secluded herself in the Scarlet Devil Mansion's library and has no strength so in many situations she gets exhausted easily.
Because of that and her hair color she gets called "the purple sprout" (In Japan, weak people are methaphorically called sprouts)
In Doujinshi, she often deals with Marisa who comes to steal books. If it comes to Marisa's pairings, it's as popular as the one with Alice.
At first, she thinks of her as a nuissance who only comesto steal books, but gradually she starts longing for her - the story often develops in this direction.
Also, guarding the library is Koakuma, a mid-boss who appears in Embodiment of Scarlet Devil's fourth stage. She also frequently appears in doujinshi.
She's a character to whom a name was given by the fans and her personality also varies in different Doujinshi.
Usually though, she has a personality obedient towards Patchouli.
She is often with characters like Kirisame Marisa, Remilia Scarlet, Alice Margatroid, etc.