Accompanying his mother-in-law's hot spring trip, the father-in-law came to stay at their house. 'Sayaka' felt something amiss about her father-in-law's attitude after not seeing him for a while. One day, unable to have marital relations because of her father-in-law's presence, Sayaka's frustration built up and she started masturbating, but unfortunately was caught by her father-in-law and subsequently raped.
