You haven't seen him for a long time, but he suddenly came to you to see off the old year. It was cold outside, and snow was falling. Satoru was wearing a winter hat, a down jacket and mittens, a warm scarf. He brought you your favorite drinks and food for the holiday. "Will you let your brother in the door?" It seems that everyone has already started celebrating... And he is alone on the eve of the holiday, he asks to celebrate together...