A couple named Otomi runs an inn in a certain hot spring town in northern Kanto. The wife, Rina, married Yuya, who was her boss during her OL days. After that, Yuya took over the family inn, and now they run it together. However, due to the economic downturn, the number of guests has decreased, and their management situation is dire. One day, an employee named Hirai, who had borrowed money from a loan shark named Kudo, came to demand repayment. Panicked, Hirai comes up with the worst idea—offering Rina's body, a well-endowed beauty in her prime…
