Seikai no Monshou

Crest of the Stars is a trilogy of space opera science fiction novels written by Hiroyuki Morioka with cover illustrations by Toshihiro Ono. Beginning in 1999, the novels were adapted into anime series, the first of which ran for 13 episodes on WOWOW. The initial trilogy was followed by a second, ongoing novels series, Banner of the Stars (currently 4 volumes, aka Seikai no Senki), which was adapted into three sequel series to the anime-Banner of the Stars (13 episodes, aka Seikai no Senki), Banner of the Stars II (10 episodes, aka Seikai no Senki II) and both adapting the second novel, two recap movies-Crest of the Stars Special Edition and Banner of the Stars Special Edition, and an OVA Crest of the Stars Lost Chapter (aka Seikai no Dansho). The fourth anime series, adapting the third novel, Banner of the Stars III (aka Seikai no Senki III) is an OVA released in Japan in 2005.
PLOT:
Crest of the Stars and Banner of the Stars (series I and II) follow Jinto Lynn, a young count whose world is taken over by the space-dwelling race of the Abh. When Jinto was a young boy, his father, Rock Lynn, under threat of invasion, handed over their world, Martine, to the Abh in exchange for a position within Abh society. Young Jinto is sent off to school to learn the ways of Abh nobility and the story of Crest of the Stars picks up as he meets the young Abh princess, Lafiel as they are about to travel to military school for Jinto’s further training.
However, in the midst of their travels, Lafiel and Jinto (along with the Abh ship Gothlauth, aka Gosroth) find themselves at the very beginnings of a war between the Abh Empire and the Four Nations Alliance of humankind-an anti-Abh alliance of the democratic nations of the United Mankind, the Federation of Hania, the Republic of Greater Alcont, and the People’s Sovereign Union of Planets.
GAME:
Roughly a year after the Anime finished airing, at the end of May 2000 Bandai Visual released a video game adaptation for the Playstation called Seikai no Monshou (Crest of the Stars). It features a story inspired by both the Crest of the Stars and the Banner of the Stars novels, incorporating some of their characters. The game consists of 67 different space battles, with a story split in two paths and three possible endings each.