X OVA
X - Yochou
X OVA: Episode 0
X - An Omen
X -エックス-第零話 予兆
In this prequel to the "X" TV series, a beautiful, young, bedridden dreamgazer named Kakyou remembers the life and death of a remarkable young woman whom he met in dreams. He also recounts his dreams of a tragic future in which the fate of the Earth will be decided.
(Source: ANN)