Okada Izo... "Hitokiri Izo" stands in America!? Izo is entrusted with guarding Katsu Kaishu at Ryoma's recommendation. Kaishu Katsu, who was on par with the army magistrate of the Tokugawa Shogunate, was entering the port of San Francisco aboard the Kanrin Maru carrying a Japanese mission to ratify the Treaty of Amity and Commerce between the United States and Japan... Of course, Izo too...!? At the welcome party, Izo gets irritated by his patron Richardson's arrogant attitude and causes a big problem. With that as an opportunity, Izo decides to stay in America! Straight, from the west to Washington in the east. While repeating various events and encounters with historical figures... There is no IF in history. However, Izo was also alive. A spin-off work from the original historical fact, Izo Okada! A must-see for Izo's samurai spirit in the New World!