In 1586 at Hetsugigawa River (present Onogawa river) in Bungo province Hideyoshi's coalition troops composed by director Hidehisa SENGOKU, Motochika CHOSOKABE, Nobuchika CHOSOKABE, Masayasu SOGO and Yoshimune OTOMO, fought for Iehisa SHIMAZU of SHIMAZU troops, but were defeated heavily because Hidehisa SENGOKU committed a blunder as Nobuchika CHOSOKABE and Masayasu SOGO were killed in the battle (the battle of Hetsugigawa).
天正14年（1586年）には豊後国戸次川（現在の大野川）において、仙石秀久を軍監とした、長宗我部元親、長宗我部信親親子・十河存保・大友義統らの混合軍で島津軍の島津家久と戦うが、仙石秀久の失策により、長宗我部信親や十河存保が討ち取られるなどして大敗した（戸次川の戦い）。