is a Japanese original video animation (OVA) directed, written and co-produced by Makoto Shinkai. The OVA premiered in Japan in February 2002 in an advanced screening. It was followed by two DVD releases on April 19 and October 6, 2002. It chronicles a long-distance relationship between two close friends, one a soldier, who attempt to communicate with one-another over the course of an interstellar war by utilizing text messages that take years to reach their recipient.  ADV Films licensed the OVA for release in North American and the United Kingdom, and Madman Entertainment licensed it for Australasia. However, the United Kingdom license has since been obtained by Anime Limited.