55-year-old extremely lustful wife Sakura Nagao embarks on a journey to Izumo Taisha Shrine in Shimane Prefecture, praying for the recovery of her husband Shigeyoshi, who is recuperating from a cerebral infarction. Along the way, during a visit to the Iwami Ginzan Silver Mine, she meets Yujiro, the master of a swordsmanship dojo on Mount Sanbe in Oda City, and their relationship quickly deepens. Throughout the trip, they indulge in nonstop sex. Sakura was previously picked up eight years ago with her husband at Ikaho Onsen in the Kanto region by the National Milf Hunting Team, an experience that led to both of them enjoying sex with other partners. Since then, her body has fallen into a state of extreme hypersexuality, and with her husband's permission, she maintains two regular male lovers. Even in her husband's absence, her insatiable desire for daily sex shows no signs of slowing down. This solo journey at age 55 becomes the beginning of a new adventure filled with passion and lust.