A desolate world where mechanical bodies called "Avatars" are becoming widespread. Ao, a girl living in the lower strata of the city, was somehow getting by each day while working as an Avatar repairman. One day, she finds an Avatar girl, Ariadne, in a tattered state in a back alley. Unable to overlook her, Ao performs repairs, and as soon as Ariadne wakes up, she gives her a Kiss and says, "Shall we get married?"... Girls living at the bottom of the world. The "Daily Life" of the two, which gradually begins to sparkle.