A battle fought between Date Masamune's 13,000 warriors and the 30,000 combined forces of the Hatakeyama, Satake, Ashina, Souma, and other clans in the neighboring area in Masamune's first years as the head of his clan. The Date warriors were driven back from Hitotori Bridge on the Seto River to Motomiya Castle, where, on the verge of annihilation, they prepared to make a last stand. However, in the night Satake Yoshishige's forces were miraculously called away by an invasion on the Satake's own land, and the rest of the clans retreated.