Yoshiteru was a great swordsman who was instructed by Nobutsuna KAMIIZUMI and initiated into the esoteric points of swordsmanship by Bokuden TSUKAHARA. So it is said that he killed many enemies with his treasured sword.
義輝は上泉信綱に教えを受け、塚原卜伝に奥義の伝授を受けた剣豪であったため、秘蔵の太刀をもって敵兵を多数斬り殺したという。