Hakuô Matsumoto

The three Amaba brothers are second-generation Japanese Americans, whose allegiances are torn by the bombing of Pearl Harbor. Determined to show his loyalty to his adopted country, Isamu volunteers for the U.S. Army and is shipped off to fight in Europe. A second brother, studying in Japan at the outbreak of hostilities, is conscripted to fight against the Americans as a Japanese soldier. The third brother Kenji (Matsumoto) avoids conflict by enlisting as a military interpreter, in which capacity he witnesses the war crimes trials that followed Japan's defeat.

Kumokiri Nizaemon, a former samurai warrior, has abandoned his class to become the leader of a gang of thieves. He leads his outlaws in an attempt to rob the castle of his former clan.

Japan and Russia clash in what comes to be known as the Russo-Japanese War. An attempt by the Japanese fleet and army to take Port Arthur fails, and a Russian fleet bears down on the Sea of Japan. Admiral Heihachiro Togo sends his fleet to confront the Russians, with results which stun both nations. Meanwhile, Major Genjiro Akashi makes secret negotiations with the Bolshevik revolutionaries in Russia, negotiations that have repercussions far beyond the conflict at hand.

February 17 to March 3, 1860, inside Edo castle. A group of assassins wait by Sakurada Gate to kill the lord of the House of Ii, a powerful man in the Tokugawa government, which has ruled Japan for 300 years. They suspect a traitor in their midst, and their suspicions fall on Niiro, an impoverished ronin who dreams of samurai status, and Kurihara, an aristocratic samurai who befriends Niiro. Niiro longs to identify his father, knowing he is a high-ranking official who will disclose himself only if Niiro achieves samurai status. With American ships in Japan's harbors, cynicism among the assassins, and change in the air, Niiro resolves to reach ends that may prove ephemeral.

The story tells of a group of samurai who were left leaderless (becoming ronin) after their daimyo (feudal lord) was forced to commit seppuku (ritual suicide) for assaulting a court official named Kira Yoshinaka, whose title was Kōzuke no suke. The ronin avenged their master's honor after patiently waiting and planning for over a year to kill Kira. In turn, the ronin were themselves forced to commit seppuku for committing the crime of murder.

The plot is based on the novel "Akechi Samanosuke no Koi," the final work in a trilogy by Hiroshi Kato about the forced suicide of Oda Nobunaga at the temple Honnoji. Historically, the general Akechi Mitsuhide is credited with causing Nobunaga's downfall. Kato's novel focuses on Mitsuhide's nephew Samanosuke, who fought alongside his uncle during the assault on Honnoji.