Black Butler: The Emerald Witch Arc is the eighth story arc in Black Butler and follows Ciel and Sebastian, who are sent to investigate a series of mysterious deaths in Germany. While Ciel’s ...

episodes 2-6 and 13-15 of Black Butler season 1, Book of Circus (2014), Book of Murder (2014), Book of the Atlantic (2017) and the upcoming Public School Arc that will begin airing in April 2024.