Weekend. A young salaryman named Masatoshi lives with his wife in a certain place within Tokyo. He managed to take some consecutive days off, so he decided to visit his wife's parents' home together. After three hours on the Shinkansen and trains from Tokyo, they arrived at his wife's parental home in a mid-sized city that has seen moderate urban development. His mother-in-law warmly welcomed them. Then, seeing his mother-in-law's voluptuous figure, the son-in-law couldn't help but gulp.
