Hana Himesaki and her husband run a traditional inn at a hot spring resort. However, their business is failing, bringing them to the brink of closure. Just then, a yakuza named Inuma arrives as a debt collector and becomes captivated by Hana's beauty. He devises a bold plan to revitalize the inn in a new form. His scheme: transform Hana into a lustful young innkeeper and turn the establishment into a lewd guesthouse where creampie sex is permitted. To start, Inuma brings his subordinates to inspect Hana's body firsthand. This first step will drastically alter the inn's fate forever.