Valis: The Fantasm Soldier (夢幻戦士 ヴァリス Mugen Senshi: Varisu?, lit.'Dream Soldier: Valis') is the first video game in the Valis series. Telenet Japan originally developed and published Valis in 1986 for the MSX and PC-88 home computers. Tokuma Shoten would later release a version for the Famicom in 1987. In 1991, additional publishers Riot (Japan) and Renovation (US) released versions for the Mega Drive (the Sega Genesis in North America). An enhanced remake of the Mega Drive version was also released for the PC Engine's Super CD-ROM². In 2005, Telnet released another remake of the game, this time for mobile phone platforms in Japan. The game spawned several sequels including Valis II, Valis III, Valis IV. The Valis series stars a Japanese schoolgirl named Yūko Asou (麻生 優子 Asou Yūko?), who uses a mystical sword called Valis to defend Earth, the spirit world and the dream world.