Saeki's coven is a witchcraft club headed by the occult-obsessed Academy student and later teacher Kaori Saeki. The group is mainly featured in the first Bible Black game, the first anime series Bible Black: La Noche de Walpurgis and its sequel Bible Black: New Testament. The group's members also appear in a scene of Bible Black: Only. During her time as a student, Saeki attempts to perform occult magic tricks with her fellow club members Jun Amatsuki and Maki Kurimoto. The girls regularly meet in a rented apartment room for their magical exploits, like on the SabbathWP day.