Because it is a loving couple, the swapping experience! Nakazawa who is not satisfied with wife because of business fatigue. One day, when she witnesses his wife's masturbation, she decides to go to the "swapping" and "reaffirmation of love". The difference married couple of years of the apartment house. I decided to take the invitation of the couple exchange from the neighbor, but the result... "Swap experience of the difference married couple". The second story of the power is collected! It's delicious!