Itsukushima Shrine
Miyao Castle was built on a hill near Itsukushima Shrine and facing the mainland, making it a visible and tempting target. Sue commandeered a fleet of merchant vessels and prepared the troops of the Ōuchi clan to cross the channel. In the early hours of 15 October, Sue attacked Miyao Castle in an amphibious frontal assault. Meanwhile, Mōri took advantage of his absence to seize Sakurao Castle, Sue's castle on the mainland.