In Victorian age of London, the Earl of the Phantomhive house, Ciel Phantomhive, seeks revenge on those who had humiliated him and destroyed his family. Unable to accomplish this alone he sells his soul to a demon named Sebastian Michaelis. With Sebastian as his butler, Ciel sets out to hunt down those responsible for the crimes.
At the ultra prestigious Ouran High School, Haruhi Fujioka, looking for a quiet place to study, walks into an unused music room, and stumbles across the notorious Ouran High School Host Club, a group of boys who entertain the girls of the school for profit. But when Haruhi accidentally breaks an expensive vase belonging to the wacky Host Club, she must work for them until her debt is paid.