Black Butler, also known as Kuroshitsuji, is a dark and intriguing crime-solving manga series written and illustrated by Yana Toboso. The story is set in Victorian-era England and follows Ciel Phantomhive, a young nobleman who forms a contract with a demon named Sebastian Michaelis. Together, they solve mysteries and carry out Ciel's revenge against those who wronged him. Black Butler combines elements of supernatural, mystery, and suspense, creating a captivating narrative filled with intricate plot twists and morally ambiguous characters.