The Takashiro family, a traceable Daimyo lineage rooted in historical nobility, has recently taken a shameful turn, tarnishing the reputation they held since ancient times. Nanako is the sole daughter of the Takashiro family. She is in a frail state, spending most of her life asleep and passing her days concealing her lustful thoughts for Yujiro. Meanwhile, a dark plot draws near. A rival family aims to seize the family's assets, particularly targeting the beautiful Nanako's sweet young snatch. However, Nanako is not the only female member of the Takashiro clan willing to settle the family's debt; her mother also joins in with a jaw-dropping display of eroticism, as the Takashiro women surrender their bodies to a gang of carpet-munching marauders.