Crest of the Stars is a three-volume space opera science fiction novel written by Hiroyuki Morioka with cover illustrations by Toshihiro Ono. This was followed by a second, ongoing novel series, Banner of the Stars and a series of books collecting short stories set in the same universe known as Fragments of the Stars .

Banner of the Stars is a Japanese series of science fiction novels written by Hiroyuki Morioka, which serve as a sequel to Crest of the Stars. Three novels in the series have been adapted into anime. The first series, Banner of the Stars was released in 2000 with a recap movie Banner of the Stars Special Edition following in 2001. That year, Banner of the Stars II was also released. The third anime series, adapting the third novel, Banner of the Stars III is an OVA released in Japan in 2005.