Four Hitokiri of the Bakumatsu

Four Hitokiri of the Bakumatsu was a term given to four samurai during the Bakumatsu era in Japanese history. The four men were, Kawakami Gensai, Kirino Toshiaki (also known as Nakamura Hanjirō), Tanaka Shinbei, and Okada Izō. They opposed the Tokugawa shogunate (and later, supported the Meiji Emperor). These four samurai were warrior elite and widely considered undefeatable by normal people.