At home, the married couple awaits their subordinate couple. As soon as they invite them in, they jump right into the main event. "Ise-kun... wouldn't you like to hold my wife? But I won't be participating," the president proposes a wife-swapping arrangement... However, his wife's partner is another man!? (2) Four middle-aged men and women gather in one room. Their goal is swapping, but the Endo couple, who responded to the call, especially the wife, seems to prefer multiple partners. With one single male participant added, today's sex party begins!
