Watch Now Follow Other name: Darker than Black: Kuro no Keiyakusha Gaiden, Darker than BLACK -黒の契約者 外伝 1 2 3 4 5 6 7 8 9 10 Average Rating : 9.5 from 1 users. New Episodes: Ep 4 Ep 3 Ep 2 Genres: Comedy Parody Sci-Fi Status: Completed Total Episodes: 4 Last update: 1 second ago Views: 50 The story of what happened to Yin and Hei between the first and second series. [More] #Episode 5 Support KayoAnime TV by share Darker Than Black Gaiden Darker than Black: Kuro no Keiyakusha Gaiden, Darker than BLACK -黒の契約者 外伝: