Based on a novel created by Fuyumi Ono.
Funimation originally released the Series in America with an English Dub (Featuring the Likes of Cherami Leigh, David Wald, Jerry Jewel & Tia Ballard, among other noteworthy additions); however in 2018, their rights Expired and the show was pulled from their Site. The original Subtitled Version can still be found in some Streaming Sites (as of 2021), but the English version is a bit harder to come by. It's most easily watched by tracking down a copy of the original blu-ray that has since been Discontinued.