Younger brother Tsutomu comes to treat sister-in-law Satsuki as one's sexual desire processing toy as a debt security of the older brother. Kenji of the nephew joins Sara, too, and prepare Satsuki to a Sei processing toy all together. Act as the Satsuki for a beloved husband admirably, but gradually wake in pleasure by intense Taming including electric Mai Kase and daburuirama…. The Satsuki was not a thing only for husbands anymore.
