Mr. and Mrs. Miyuki have been married for 30 years. Despite their busy schedules, they have worked together to raise their two children. In order to spend the couple's time slowly, the couple went on a hot spring trip for the first time in a long time while looking at the face of their first grandchild. The passion of love that has warmed up for 30 years is still burning. - On a hot spring trip just for the two of them, it becomes a hot and rich trip as if confirming each other's love for each other in a different skin contact than usual.