It is said that he served as a close adviser of the 8th Seii Taishogun (literally "great general who subdues the eastern barbarians") of the Muromachi Shogunate Yoshimasa ASHIKAGA, but he threw it up and became a sword ornament craftsman.
室町幕府8代征夷大将軍足利義政の側近として仕えたが、それを辞して装剣金工に転じたと伝えられる。