Kensuke, a son, and Saki, a young wife, who live with their father-in-law, Toru, whose mother-in-law passed away and became single. The energetic father-in-law always looks at Saki with an unpleasant eye. One day, my husband decided to go to Kyushu on a business trip from Monday to Friday. Saki who is alone with her father-in-law for the first few days ... The father-in-law who is forcibly approaching at this time. Saki continued to resist, but finally ... "I'm sorry for you." The lust of my father-in-law who burns into the ripe body of my son's wife. Parent-child NTR, S1 full-scale drama! !!