Substitute sex toy, even after ejaculation, the 10-day imprisonment with the unparalleled yakuza uncle, Tsubasa Amane IPX-952

This woman is quite something... She's unbearable... If you want to save your brother, become my woman for 10 days! To help her brother repay his debts, the sister, Amane Tsubasa, who deeply loves her brother, is imprisoned at home by a powerful yakuza boss and forced to perform sexual acts. Through pleasurable training, she gradually becomes a sex toy for men...