Amana Kurisaka agrees to be an art model, only to find herself thrust into a world of nude modeling and public exhibitionism. Haunted by a childhood incident that sparked her hidden desires, Amana is manipulated by a cunning instructor into increasingly daring and depraved sexual acts in public. As her secret life spirals out of control and rumors spread through her hometown, Amana eventually abandons her inhibitions and fully embraces her identity as a public sex doll.