Patchouli Knowledge is a very smart, anemic/asthmatic witch from the Scarlet Devil Mansion(Librarian and home tutor of the Scarlet sisters). Her daily wear consists of pink frilly night gowns with lots of ribbons :P (Lick)

Her powers are based on the 7 Elements, parallel to the days of the week in the Japanese calendar. Some call her "One Week Wizard"

Some people say that Yue Ayase(from Negima) is based from this girl because they have similar hairstyle and color, they both love books, and use magic :) (Smile)

She's from the game Touhou 6: Embodiment of Scarlet Devil
4th Stage BOSS

Patchouli Knowledge (c) Zun
Art (c) Me

Patchouli Knowledge
Aya Shameimaru
Sanae Kotiya
Utsuho Reiuji
Nue Houjuu
Tenshi Hinanawi