Chronoire Schwarz VI
Chronoire Schwarz VI (クロノワールシュヴァルツ・シックス Kuronowaru Shuvarutsu・Shikkusu?) is a powerful tower witch. She first appeared in front of Kazane Kagari to inform her that she will unseal the "white princess". She is shown to be very knowledgeable about the things going around Honoka Takamiya.
(Source: Witchcraft Works Fandom)