New Year's party where all relatives gather. After a few greetings, sake and feasts were served, and the house was in a banquet mood. However, in the meantime, only two sets of parents were not calm at heart. The aunts and nephews of the Yabe family and the Nanami family, who have been in a relationship for a long time. The four people, who had no way of knowing that their parent and child were actually in a physical relationship, were looking forward to the day when they could meet openly only once a year. The two groups proceeded to prevent other relatives from finding out... However, they were unlucky to run into each other and finally learned the whole truth...
