A sister is held captive in the home of a virile yakuza boss as collateral for her beloved brother's debts, forced to provide sexual services... Day after day, she is addicted to pleasure and constantly desired. Ten days of captivity with a virile yakuza boss who never seems to stop ejaculating. "Suck my dick as soon as I pull it out! Take your clothes off as soon as I ask! You're my sex slave! ! It's not over yet! This sex slave is the best! ! Sex all the time for 10 days straight..."