Kyoka, the daughter-in-law pressured by her mother-in-law to have a grandchild, finds out that the family will be going on a hot spring trip. However, for the month leading up to the trip, she is ordered to abstain from sex for the sake of conception. On the day of the trip, her husband surprisingly refuses sex. Meanwhile, her father-in-law also tries to have sex with his wife but is refused as well. The two, unable to release their sexual tension, head to the hot spring to calm their restless bodies. Then, the father-in-law happens to catch a glimpse of Kyoka bathing…
