Genre: action, romance, vampires
Year: 2008
Episodes: 12
Subbers: Yuurisan-Subs & Shinsen-Subs
Format: .mkv

Summary:
Kuro, a 12th-century man, flees into the mountains after losing to his brother, where he meets a strange, beautiful woman named Kuromitsu. Kuro falls in love with Kuromitsu but realizes she conceals a dark secret. She is unable to die and continues to live for thousands of years as Japan evolves into a future society.
(From AnimeNewsNetwork)

Downloads:
Episode 01
Episode 02
Episode 03
Episode 04
Episode 05
Episode 06
Episode 07
Episode 08
Episode 09
Episode 10
Episode 11
Episode 12

Note:
If nothing else, the action scenes are awesome.