One of multitudes of Mazone hiding amongst the earth's population and passing themselves off as human, Aki was once married to Chief Engineer Maji, then of the Earth Federation battleship Braves. Aki played the role of happy homemaker by day, enemy agent by night until Maji's superior Captain Yamanaka discovered her true identity. Yamanaka was forced to kill Aki in self defense, for which Maji nearly killed him in return. After Aki's death, a group of Mazone kidnapped hers (and ostensibly Maji's) daughter Midori, resulting in Maji's eventual joining of the Arcadia's crew. http://www.cornponeflicks.org/harlock/mazone.html