DSOD-052 Drowning in debt repayment for her boyfriend... she became a meat toy for old men, trained to fuck with her pussy. Her voluptuous big-titted girlfriend. Nami Nanase.

Though he's a piece of shit, Nami still feels sorry for him and can't leave him behind. She wants to help pay off her boyfriend's debt somehow. One day, she finds a service that handles debt repayment on behalf of others and decides to use it. Nami is assigned to complete a certain job as compensation for the debt repayment and begins receiving various training sessions.