Miscellaneous Topics
The novel Battle Royale by Koushun Takami was set in the fictional town of Shiroiwa ('Castle Rock') in the Kagawa Prefecture. Okishima, the fictional island on which much of the novel takes place is placed in the Seto Inland Sea. The manga also places Shiroiwa in Kagawa Prefecture, while the film moves Shiroiwa to Kanagawa Prefecture.
Read more about this topic: Kagawa Prefecture