Darker than Black: Kuro no Keiyakusha Gaiden

Darker than Black: Kuro no Keiyakusha Gaiden
Darker than BLACK -黒の契約者 外伝 (Darker than Black: Kuro no Keiyakusha Gaiden)
RATING
80.4/100
Type: special
Genres: Sci-Fi, Mystery, Super Power, Action
Start Date: 2010-01-27
End Date: 2010-07-21
Episodes: 4
Episode Length: 24 min
Total Length: 96 min
Age Rating: R - 17+ (violence & profanity)
Tells the story of what happened to Yin and Hei between the first and second series.