This article is from the Manga Glossary, by Steve Pearl starbuck@cybercomm.net with numerous contributions by others.
Story writer; someone who writes a story or synopsis to be drawn by a
manga-ka. By far the most prolific gensaku-sha is Koike Kazuo, who has
penned stories for hundreds of mangas. Royalties are usually split 50/50
between gensaku-sha and manga-ka.
 
Continue to: