He excelled at the martial arts as much as Naomasa AKAI (called the 'Red ogre of Tanba') and it has been said that he was called the 'Blue orge,' but his existence is uncertain.
「丹波の赤鬼」こと赤井直正と並んで武勇に優れたため、「青鬼」と呼ばれたというが、実在には疑問もある。