At this time Ieyasu TOKUGAWA, who was an ally of Nobunaga, stood on Nobukatsu's side, and Motochika CHOSOKABE, Saika party of Kii province and others joined the war against Hideyoshi.
このとき、信長の盟友であった徳川家康が信雄に加担し、さらに家康に通じて長宗我部元親や紀伊国雑賀党らも反秀吉として決起した。