Path of the Assassin (Japanese: 半蔵の門, Hepburn: Hanzō no Mon, lit. 'Hanzō's Teachings') is a Japanese manga series written by Kazuo Koike and illustrated by Goseki Kojima; it was published in Kodansha's Weekly Gendai magazine. Unlike their previous collaborations on Lone Wolf and Cub and Samurai Executioner, this story focuses on two historical figures from 16th-century Japan. Path of the Assassin is the story of Hattori Hanzō, the master ninja whose duty it was to protect Tokugawa Ieyasu, who would grow up to become shōgun and unify Japan. The creators poetically describe the story as "Lifelong Friends, with the Same Dreams, Striving to Grow into a Rising River". The 20-volume series has been reprinted by Dark Horse Comics in a thicker 15 volume edition, translated into English and oriented in the original right-to-left reading format. Source: Wikipedia (en)