Yui was supposed to go on a hot spring trip with her husband Ryuichi and her father-in-law on their wedding anniversary, but suddenly Ryuichi was late for work and decided to go with her father-in-law first. Yui was a little awkward, but when he and his father-in-law went around the hot spring town, he suggested to his father-in-law that he should wash his back in the bath. Father-in-law who accepts the favor when he finds out that Yui has loneliness with Ryuichi's cold attitude. And Yui who touched the kindness of her father-in-law exposed her beautiful body in the bathhouse ...
