Black Butler: Emerald Witch Arc

黒執事 -緑の魔女編- (Kuroshitsuji: Midori no Majo-hen)

9.9(1)

OtakuDen

8.2(26,974)

MAL Score

Ranked #501

Popularity #2867

Action
Mystery
Supernatural
Historical
Mythology

Episodes: 13
Duration: 23 min per ep
Aired: Apr 5, 2025 to Jun 28, 2025
Status: Finished Airing

Synopsis

At Queen Victoria’s command, 13-year-old Earl Ciel Phantomhive heads to southern Germany to look into a string of unsettling deaths. Each victim had recently ventured into the ominous Werewolves’ Forest, only to return with bizarre deformities before dying—fueling village whispers that a “witch’s curse” is to blame.

Skeptical of the folklore, Ciel travels with his demon butler, Sebastian Michaelis, and the Phantomhive household staff into the forest, where they find a secluded settlement cut off from the outside world. The village is inhabited solely by women, openly hostile to strangers, and devoted to a young girl with emerald eyes and bound feet: Sieglinde “Green Witch” Sullivan. As Ciel and Sebastian dig for the real cause behind the deaths, they become affected by the same curse, forcing them to confront the possibility that the legends surrounding the forest may hold more truth than expected.

Otaku Consensus

Black Butler: Emerald Witch Arc lands as one of the franchise’s more emotionally rewarding modern installments, with CloverWorks’ adaptation giving the Green Witch material enough gothic pressure, character focus, and late-arc humor to satisfy long-term fans. The common reservation is not the core drama but the delivery around it: several critics found the season less forceful than earlier Black Butler highs, with some action beats and the tank reveal testing credibility once Sebastian’s power ceiling is taken into account.

Why You Should Watch

Watch Emerald Witch Arc if you want Black Butler at its most investigation-driven: Victorian intrigue filtered through German folklore, crime-scene logic, demon theatrics, and a social world built around ritual, isolation, and mistrust. It scratches a similar itch to Moriarty the Patriot’s period conspiracy games, but with the supernatural menace and anti-hero contract dynamic that make Ciel and Sebastian colder, stranger, and funnier. This is especially rewarding for viewers who like historical anime where language barriers, class performance, and etiquette become part of the suspense rather than background decoration. It is not the cleanest or most explosive Black Butler season, but it is a compact 13-episode arc with a strong emotional spine and a fan-favorite manga segment finally given a full TV adaptation.

Key Characters

C
Ciel Phantomhive
Ciel remains compelling because the arc pushes his aristocratic composure and child-soldier pragmatism into a setting where status, language, and fear do not automatically obey him.
S
Sebastian Michaelis
Sebastian is the season’s pressure valve: his competence makes ordinary threats feel almost unfair, which is exactly why critics singled out the arc’s emotional conflict as more persuasive than its brute-force danger.
S
Sieglinde Sullivan
Sieglinde stands out as the Emerald Witch Arc’s defining new presence, a young ojou-sama figure whose emerald-eyed mystique helped make this one of Black Butler’s most discussed story segments.

What Makes It Stand Out

1
CloverWorks handles the 2025 adaptation with Kenjirou Okada directing and Hiroyuki Yoshino on series composition, keeping the arc to a focused 13-episode run rather than stretching it across a longer cour.
2
The arc’s identity is unusually international for Black Butler: AniList tags it heavily as Foreign, Rural, Language Barrier, Witch, Werewolf, Crime, and Historical, reflecting how much of its tension comes from culture clash rather than London society games.
3
Critical discussion repeatedly points to the emotional conflict as the season’s strongest asset, especially because the action escalation can feel less convincing when measured against Sebastian’s established abilities.
4
THEM Anime Reviews highlighted the season’s late humor, particularly Sebastian’s knowingly theatrical take on a Henry Higgins-style role, giving the gothic mystery a sharper comedic aftertaste near the end.
5
The Green Witch material arrived with a strong fan reputation before airing; web commentary described it as one of the most hyped and beloved Black Butler arcs to finally receive an anime adaptation.

Fun Facts & Trivia

Fun fact 1: The season aired from April 5, 2025 to June 28, 2025, finishing as a 13-episode TV arc rather than an OVA or film adaptation.
Fun fact 2: Its reception sits in a strong but not blockbuster tier: the listed MAL score is 8.17 from 26,974 votes, with a MAL rank of #501 and a much lower popularity placement of #2867.
Fun fact 3: AniList records a similar positive response with an 81/100 score and 565 favourites, suggesting a concentrated fanbase rather than mass seasonal ubiquity.
Fun fact 4: Yana Toboso is credited as the original creator, while Yumi Shimizu handled character design and also served as chief animation director on episodes 1, 6, 11, and 13.
Fun fact 5: The final episode had multiple chief animation directors credited across the staff list, including Yumi Shimizu, Yuusuke Shimizu, and Mio Inoguchi, indicating extra supervisory attention on the close of the arc.