At 36, divorced Heo Jaeyoung meets Sung Yunwoo through a blind date and promises a future together. She decides to end her relationship with her longtime sex partner, Sung Haneul. But the person Yunwoo introduces as his son turns out to be none other than Haneul. After a whirlwind wedding with no ceremony, the three end up living under one roof. Jaeyoung, who had always enjoyed rougher sex, finds her intimate life with the cautious Yunwoo somewhat unsatisfying. Sensing her frustration, Haneul comes up with a shocking proposal… “Dad, you still don’t know how Jaeyoung likes to be touched, do you?”