Mr. and Mrs. Inaba run an inn in a certain hot spring area in northern Kanto. - His wife, Noruka, married Yuya, an older childhood friend. - However, due to the recession, the number of customers had decreased, and the business was in dire straits.In addition, the male servant, Kita, had a bad attitude towards his work, which caused the couple to worry. - One day, Kudo, a black money dealer to whom Kita had borrowed money, comes to demand repayment. - In a panic, Kita makes the worst idea of offering Ruka, a busty beauty around her age...