 If you liked
Darker than Black: Kuro no Keiyakusha
|
 ...then you might like
Kuroshitsuji
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Both series feature mysterious, darkly charismatic male leads with otherwordly powers. Though set in different time periods and geographical locations, they both feature fantastic character designs and tight, elegantly choreographed action sequences. Thematically, characters in both series struggle with what constitutes good and evil, as well as the meaning of being human.