, sometimes referred to as simply , is a Japanese anime television series produced by TV Tokyo, Yomiko Advertising and Xebec and directed by Tatsuo Satō, with manga artist Kia Asamiya providing original character designs, Keiji Gotoh serving as chief animation director, Mika Akitaka being the main mechanical designer and Takayuki Hattori composing the music. A manga adaptation by Asamiya was published by Kadokawa Shoten from 1997 to 1999. The manga, published in English by CPM Manga, has many significant changes from the anime.