To pay off her debts, her husband Makoto was captured by the Yakuza and forced to work at demolition and industrial waste disposal sites. However, one day he breaks down and is no longer able to do the work himself. Driven to the brink, the Yakuza member Kita makes a wicked proposal to Makoto: "Why don't you get your wife to work too?" Makoto has no choice but to accept the proposal. So Makoto's wife Rua ends up working as a sex slave in addition to her duties at the workshop...