A tour of 12 secret hot springs nationwide, consisting of 12 episodes in two parts, in which 13 people, including the proprietress, waitresses, and mature customers, unfold at a hot spring inn in the outskirts of Hundred Secluded Views. In the first part, guests who came from Tokyo at a secret hot spring inn in Hokkaido sneak into the room of the fifty-year-old waitress with huge breasts and super breasts, and spend the night next to the husband. 3 episodes such as a ring to a customer who pretends to be a vaginal cum shot. Part 2 is a secret story composed of 9 episodes where 10 mature women staying at secluded hot springs across the country are orgy at night.
