He and his men served with distinction in the Korean invasions under Hideyoshi and, after Hideyoshi's death, he began to support Tokugawa Ieyasu—apparently at the advice of Katakura Kojūrō.
On a jeho muži sa vyznamenali v služba pre Hidejoošiho v Kórejskej invázii a po Hidejošiho smrti začal podporovať Iejasua Tokugawu — pravdepodobne na základe rady Kodžúró Katakuru.