My Father-in-Law in Me Soojung and Daehoon have the seemingly perfect marriage. It’s been nine years, but their sex life is better than ever. The two decide they want to have a baby, but no matter how hard they try, Soojung cannot seem to get pregnant. One day, Soojung forgets a towel inthe shower and tries to sneak to her bedroom, only to literally run into her father-in-law, Mr. Seo! Flustered by the very naked and extremely attractive Soojung, Mr Seo runs away immediately. At first Soojung is embarrassed about the encounter, but then she gets to thinking… her father-in-law is handsome, smart, and a prolific educator… she’s always wanted a child like him! Not to mention, he even has the same blood type as Daehoon. She;s not having any success with her husband, so why not go for the next best thing?