Eita Nagayama

While combing through the belongings of his recently deceased aunt, Matsuko, nephew Sho pieces together the crucial events that sank Matsuko's life into a despairing tragedy.

In war-torn Japan, the Tokugawa Shogun, desperate to restore peace to his people, orders the assassination of the hostile warlords. A beautiful young woman is raised from birth with nine other orphans, to become an assassin. Her name is Azumi, the ultimate assassin.

After an outburst at school involving her son, a concerned single mother demands answers, triggering a sequence of deepening suspicion and turmoil.