Although after Hideyoshi died, he had been serving Hideyori TOYOTOMI, he made advances to Ieyasu TOKUGAWA just before the Battle of Sekigahara and joined the Eastern Army.
秀吉没後は豊臣秀頼に仕えていたが、関ヶ原の戦い直前に徳川家康に急接近して東軍に与した。