The story begins with the main character, , investigating a series of mysterious killings in Nagasaki known as the "Vampire Case," where victims are found with bite marks and a loss of blood.
The anime originally aired in Japan from October to December 2000. Yami no Matsuei (Dub) Episode 1
There are 13 episodes in total, which were later released with the English dub starting around 2003. The story begins with the main character, ,