Format
Special
Episodes
4
Episode Duration
24 min per ep
Status
Finished Airing
Premiered
Aired
2010-01-27 to 2010-07-21
Source
Original
Rating
R - 17+ (violence & profanity)
Genres
Action
Mystery
Sci-Fi
Super Power
Studios
Bones
Producers
Square Enix
Licensors
Funimation
Darker than Black: Kuro no Keiyakusha Gaiden (Darker than BLACK -黒の契約者 外伝)
Fleeing from the consequences of his decision at the Hell's Gate, superpowered Contractor Hei and his companion Yin take refuge in a quiet inn, adopting the guise of a married couple in order to not draw suspicion. In an attempt to recover from recent events, Hei befriends the inn's other guests. He discovers that one of them is a fellow Contractor tasked with killing him. Their resulting encounter spells disaster for both Hei and Yin, who are forced to fight for their lives and grapple with the emotional wounds sustained in their previous life together. [Written by MAL Rewrite]