He conducted Taiko-kenchi (Hideyoshi TOYOTOMI's nationwide cadastral surveys) in the Kobayakawa territory and at the time of keicho no eki (one of Japanese invasions of Korea), he went to Korea and assisted Hidearki.
小早川領に太閤検地を行ったり、慶長の役では朝鮮に渡って秀秋を補佐した。