Hanae Natori is a beautiful grandmother who is so energetic that she cannot be thought of as 70 years old. Even if he is single before his husband, there are many steps to take from men. One day, I introduced a boyfriend to my daughter and grandson, so it's hard. If you ask, it's a premise of remarriage. The family is naturally surprised, but Kotaro, the grandson, runs jealousy and goes out to exercise his strength because he does not want to be taken by his grandmother. And ...