The Togun-ryu school became known through an heroic story, which speaks of Munekatsu, who was traveling during his training, was attacked by a large number of enemies in Oshi, Musashi Province (present day Gyoda City, Saitama Prefecture), but miraculously made his way through his enemies using his Togun-ryu school Kenjutsu techniques.
宗勝が回国修行中、武蔵国忍（現埼玉県行田市）において多数の敵に襲われながらも切り抜けたことで、その武勇が知られるようになった。