Black Butler - Season 4 - Eps 4: His Butler, Colluding
Ciel wins the P4's trust, but he still can't find a chance to get close to the Head Master. And so he brings up the subject of Derrick Arden with the P4 and their drudges. When he does, the expressions on the prefects' faces change...
About Black Butler

Title: Black Butler
First Air Date: 2008-10-02
Last Air Date: 2024-06-22
Status: Returning Series
Rating: 7.8/10 (from 210 votes)
Language: JA
Seasons: 6
Total Episodes: 58
Network: MBS AT-X Gunma TV Tokyo MX BS11 Tochigi TV
Genres: Animation, Comedy, Drama, Mystery, Sci-Fi & Fantasy
Production Companies: A-1 Pictures, CloverWorks, Yomiuri Telecasting Corporation, Aniplex, Square Enix, movic, MBS, Hakuhodo DY Media Partners, YOMIKO Advertising, Crunchyroll
Synopsis
In Victorian London, 12-year-old business magnate Ciel Phantomhive thwarts dangers to the queen as he's watched over by his demon butler, Sebastian.