In 1467, a disputed shogunal succession split Japan's great houses into two armed camps. The ten-year Ōnin War left Kyoto in ashes and the Ashikaga shogun powerless, and central rule would not return for generations. For the century that followed, the daimyō warred without a master, the low overthrowing the high in the age called gekokujō. Which daimyō will unite Japan? This is Sengoku no Tenka, the warring states under heaven.