The year is 2199. Scientific progress has advanced to the point where androids can now perceive the human soul — what they call the Ghost. Specially designed androids have been tasked with resolving the grief and regrets of Ghosts before those souls can move on. The protagonist, Da'at, is one of these androids, newly activated and assigned to the lunar base known as the Garden. The work involves forming genuine connections with the people Da'at is sent to help. Somewhere in the background, a bell is ringing that no one else can hear — a sound that signals the end of something far larger than any single Ghost's story.