The anime adaptation of the Black Butler: Emerald Witch Arc concluded on June 28, 2025, marking the end of its 13-episode run as the fifth season of the Black Butler anime series. The season premiered on April 5, 2025, on Tokyo MX and other networks, and was available for streaming on Crunchyroll in various regions.
This arc, also known as Kuroshitsuji: Midori no Majo-hen, adapts chapters 86 through 107 of the original manga, covering volumes 18-22. The story follows Ciel Phantomhive and his demon butler Sebastian Michaelis as they venture to a remote German village to investigate a series of mysterious deaths and a supposed witch’s curse.
The Emerald Witch Arc sees Ciel and Sebastian delving into the secrets of the Werewolves’ Forest, where inhabitants are said to be afflicted by a deadly curse. Their mission, directly from the Queen of England, leads them to uncover the truth behind the “Green Witch” and the village of Wolfsschlucht, which is revealed to be a clandestine experiment by the German government. The narrative explores themes of scientific ethics, manipulation, and the darker side of human ambition, as Ciel and Sebastian navigate a complex web of deceptions and dangerous discoveries.
The season finale, which aired on June 28, 2025, brought the Emerald Witch Arc to its conclusion, with Episode 13 being the final installment. The ending theme for the Emerald Witch Arc was “WALTZ” performed by Ryūgūjō, while the opening theme was “MAISIE” by Cö shu Nie featuring Hyde.
