豐後國
In 1582, Kiyohide died in the Battle of Shizugatake and Hidenari's brother Hidemasa succeeded to the family headship. However, Hidemasa died young in 1592 and Hidenari succeeded to the house and the domain. Thanks to his service under Toyotomi Hideyoshi, he was soon moved to the Oka Domain in Bungo Province, with an income raise from 66,000 "koku" to 74,000 "koku". In 1597, Hidenari took part in the invasion of Korea under Tōdō Takatora.