Substitute sex toy: Even after ejaculation, the 10-day imprisonment with the unparalleled yakuza uncle continues. Futaba Megumi IPZZ-030

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, Futaba Megumi, who deeply loves him, is imprisoned in her home by a powerful yakuza boss and forced into sexual service. Through pleasurable training, she gradually becomes a sex toy for men...