After Masamune swore allegiance to Hideyoshi, the ally of Masamune, Ujimasa HOJO and his son Ujinao HOJO also surrendered to Hideyoshi; then Hideyoshi entered Masamune's Kurokawa-jo Castle in Aizu region, and conducted Oshu Shioki (punishment to the powerful warriors in the area of Oshu, to prevent them from strengthening their power).
政宗が秀吉に服属したため、政宗と同盟を結んでいた北条氏政・北条氏直親子は秀吉に降伏し、政宗の居城、会津・黒川城へ入城した秀吉は奥州仕置を行った。