Shou's father Norio finds his son in a rather meaningless existence in Tokyo dominated by alcohol and porn videos. Having left home two years earlier to pursue life as a musician, Shou has left his band and his girlfriend has left him. His father asks a favor, that Shou clean out the apartment of his aunt Matsuko, who he says led a meaningless life until her murder at the age of 53. The apartment is filled with garbage bags and is even more unkempt than his apartment has become, and he becomes intrigued with his aunt as details of her life are supplied by a tattooed neighbor and others. Her feelings of neglect by her father Tsunehiro, who favored her chronically ill younger sister, Kumi, translated into becoming a dutiful junior high school teacher devoted to her students until being forced to resign after being blamed for the theft of some money by one of them. Leaving her family due to the disgrace...

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.