Unbeknownst to Kanon, she is the android clone of a once-popular idol from the Old World. Nearly 150 years after the initial plan to create an "immortal idol" and nearly 160 years after the end of the world, they finally got the perfect replica—until Kanon defected. After waking up in a garbage heap with nothing but fragments of memories and a picture of "her" wife, she sets out across the wastes of Twinfish Island, trying to find her.