Karas: The Prophecy IMDb
Karas is a six-part OVA (Original video animation) that takes place in a futuristic setting. It is produced by Tatsunoko Productions. The first DVD of episodes 1–3, "Karas: The Prophecy", was released April 24th 2006 in the UK, and April 25th in the US. The second DVD which contains episodes 4–6, "Karas: The Revelation", was released October 23 2007 in commemoration of Tatsunoko Productions' 40th anniversary.
Karas was originally a one-shot comic book released in English through Dark Horse Comics on November 3, 2004. It was written by Phil Amara who created Sky Ape, with art by Nuria Peris and Sergio Sandoval. This makes it to be one of the few American comics to be made into an actual Japanese anime, like Witchblade.