Forced by her parents, Rin married into a family where the matriarch, Showa Satomi, ruled as chairman of the Satomi financial empire. Her husband had no say in the household due to the coercive control of Showa and his sister Yuki. Rin was taken aback by this peculiar clan. One day, on Showa's orders, her husband was sent abroad. Then, Rin learned the meaning behind this marriage... and the peculiar sexual fetishes passed down through the Satomi family... and Yuki's endless lust!
