Rozen Maiden: Träumend, Kuroshitsuji II Recommendations
Wel... where should I start? The relationship between Shinku and Jun (Rozen Maiden) and Ciel and Sebastian (Kuroshitsuji) are somehow similar, because they both have a master and slave relationship. Both series also present themselves as a dark anime, which they aren't except in the end. Both animes are filled with a lot of humor. The plots also don't match with their manga.