Their father, the president of a large company, disappeared due to the company's bankruptcy, and the business partners began to pressure the remaining daughters to repay the debt. The sisters escape to their grandmother's vacant house, but are betrayed by a servant and are tied up and punished. The bodies of the beautiful big-breasted sisters are defiled by the hands of men! The rope digs into their big breasts, and the sisters eventually give in and fall into pleasure...