Ronin student Atsushi helps out at his parents' cafe. One day, while his mother was away on a trip, he and his mother's friend Miyuki ended up looking after the store. Atsushi was nervous, but Miyuki felt the excitement of his naivety from her sense of liberation away from her binding husband and she invited herself. From that day onwards, they find time to enjoy each other's pleasures, and enjoy the days of enjoying pleasures. However, the sensual time between the two, full of immorality, can't last that long...
