 The series was later compiled into for 21 volumes published by Enix; in 1994 it was released on CD and was released for the PlayStation Portable on December 11, 2009 as part of manga distribution library.In 1996 an anime movie based on the manga was released on video cassette.A sequel series, , published by Square Enix started in 2005 and is still ongoing; as of December 2012, fifteen volumes have been released.