Kawakami Gensai
Hitokiri Battõsai (河上 彦斎?, 25 December 1834 – 13 January 1872) was a Japanese samurai of the late Edo period. A highly skilled swordsman, he was one of the four most notable assassins of the Bakumatsu period. Gensai's high-speed sword discipline was in the Shiranui-ryū.
Read more about Kawakami Gensai: Birth and Early Life, Activity in The 1850s, Activity in The 1860s, The Restoration and Gensai's Death, Gensai in Fiction