JUX-503 Bondage Hot Springs - Obedient Beautiful Sisters' Rope Feast -

Nanako, a wife, has decided to work at a hot spring inn deep in the mountains to pay off her husband's debts. Her husband's older sister, Reiko, feels guilty about Nanako having to take on her brother's debts and has heard dangerous rumors about the inn where Nanako works, so she heads to the inn. There, Reiko sees Nanako's changed appearance, bound tightly and writhing in agony. Reiko decides to offer her body in Nanako's place. However, the feeling of the hemp rope digging into her crotch gradually drives the sisters' reason crazy...