 If you liked
Darker than Black: Kuro no Keiyakusha
|
 ...then you might like
Lupin the Third: Mine Fujiko to Iu Onna
|
Both shows have a wide range of clever, scheming characters that don't exactly act as either the heroes or villains of the series.The shows both have a lot of action, and have violence in many parts as well. They also share a dark, jazzy vibe, making it feel like the viewer is really in the shadows of the big city. (Note: Fujiko Mine is much more sexually explicit than DTB, though more for artistic reasons rather than for fanservice).