Stage 4 boss, and a playable character in Immaterial and Missing Power, and Scarlet Weather Rhapsody. A scholar who is a friend of Remilia Scarlet's. She resides in the library of the Scarlet Devil Mansion, and is the de facto librarian. In fact, she rarely leaves it and is somewhat of a hikikomori. She has command over the seven elements and is in theory an extremely powerful magician.