Natsu, a life insurance saleswoman, lives with her daughter and son-in-law. Desperate to meet her sales quota, she uses her own body and even allows internal ejaculation. This month, with only one target left, she sets her sights on her son-in-law. Even though he is her daughter's husband... after being seduced by Natsu and having internal ejaculation sex, they can't forget each other's bodies... a relationship they can't stop.
