The Sengoku period begins with a civil war that would tear the Ashikaga Clan asunder and end when the Tokugawa shogunate established itself as the undisputed ruler of the Japanese Archipelago. The Sengoku period is often the setting for Japanese folktales, legends, Dramas, Cartoons, and Film. The period lends itself to storytelling due to the decentralized nature and the way it is romanticized in Japanese culture.