Natsu, a life insurance lady, lives with her daughter and son-in-law. - She is desperate to meet the quota of the contract, and she uses her body and makes her shot. When there is only one quota left this month, he locks on to his son-in-law. Even if it's my daughter's husband ... After being persuaded by Natsu and having vaginal shot sex ... We can't forget each other's bodies ... In an unstoppable relationship...