Mr. and Mrs. Inaba run an inn in a certain hot spring area in the northern Kanto region. His wife, Noruka, married an older childhood friend, Yuya. However, due to the recession, the number of customers has decreased, and the business situation has fallen into a predicament. One day, Kudo, a black money dealer who borrowed money from Kita, comes to press him for repayment. Frustrated, Kita has the worst idea of offering Ruka, a busty beauty of her age...
