Led a group of militia informally known as the Karasugumi ("Crow Brigade"), because of their black clothing. In praise for his skill in guerilla warfare, Sendai lord Date Yoshikuni appointed him Captain of Pages, and bestowed on him the honorary name of Buichirō.
He commanded a group of irregular fighters nicknamed the Karasugumi ("Crow Brigade") because of their dark clothing. As a reward for his exceptional skills in guerrilla warfare, Sendai lord Date Yoshikuni promoted him to Captain of Pages and bestowed upon him the honorific name Buichirō.