Harvestasha is made up of two modules, VISTA and XP, who are responsible for overseeing the major function of the third tower of Ar tonelico, The Tower of Harvestasha, in Ar tonelico Qoga: Knell of Ar Ciel.
Harvestasha VISTA is charged with assisting Harvestasha XP with the Planet Regeneration Project, but due to Luphan reprogrammed her 700 years ago, she is now the emotionless, tyrannical dictator of Clustania.
