SA: Assassination Duet – LOST HERITAGE.After a five-year wait, Chinese vice foreign minister Jin has been allowed access to the Kagoshima War Memorial in Japan. Jin is the first Chinese dignitary to be granted access to the site, but not everyone is happy with the decision, and before long a death threat is made against Jin. Elsewhere, Aramaki visits the grave of one of his deceased comrades, a Colonel in the GSDF. While at the cemetery, Aramaki encounters the Colonel’s daughter, who voices her concern over her brother Yu’s sudden behavioural changes. When Section 9 determines Yu to be the prime suspect in the assassination attempt, Kusanagi and Togusa are sent to apprehend him, but arrive too late to arrest Yu. Soon after, Aramaki receives a disturbing phone call from his dead friend, who has cheated death by merging his own ghost with his son's, and intends to avenge his wife's death during the war by assassinating Jin. Out of respect for the Chief, Section 9 resolves to do everything in their power to take Yu in alive, but there is concern among the team members that Yu may not give them that chance. They manage to stop Yu by hacking his cyberbrain and fooling him into thinking his mission was successful. However, he has been permanently traumatized after merging his ghost with his father's.