Meari, the daughter-in-law, is being pressured by her mother-in-law about having a grandchild. One day, the whole family decides to go on a hot spring trip. However, for the sake of conceiving, Meari is ordered by her mother-in-law to abstain from sex for a month leading up to the trip. On the day of the trip, Meari is unexpectedly denied sex by her husband. On the other hand, her father-in-law also tries to seduce his wife, but is also rejected. Unable to contain their pent-up desires, the two head to the hot springs to soothe their restless bodies. Coincidentally, the father-in-law catches a glimpse of Meari bathing and, unable to control his lust...
