Darker than black: Kuro no keiyakusha (2007-2008) TV Series

In Tokyo, an impenetrable field known as "Hell's Gate" appeared ten years ago. At the same time, psychics who wield paranormal powers at the cost of their conscience also emerged. Hei is one of the most powerful of these psychic agents, and along with his blind associate, Yin, works for one of the many rival agencies vying to unlock the mysteries of Hell's Gate. (imdb)
Genres: Sci-fi, Suspense/Thriller, Fantasy, Action, Horror, Animation
AKA: Darker Than Black
Country: Japan
Directed By: Tensai Okamura, Daisuke Chiba, Hideki Ito, Takefumi Anzai
Written By: Tensai Okamura, Shotaro Suga, John Burgmeier, Spencer Prokop
Starring: Christopher Sabat, Hidenobu Kiuchi, Matthew Leonhart