As a vice general of the Western Camp, Hideie, together with Mitsunari ISHIDA and Yoshitsugu OTANI, issued orders to behead Ieyasu and then became the main force of the Western Camp.
秀家は西軍の副大将として石田三成、大谷吉継らとともに家康断罪の檄文を発し、西軍の主力となる。