The gentleman siting next to Sister Breksa was baptized and this photo was taken on that happy occation. The tall gentleman sitting in the front row, with his hands on a book was also recently baptized.
There is a gentleman in the back row, right side who is wearing a mask. That is part of Japanese culture. When you are ill you cover your nose and mouth to avoid spreading germs. Also note that the gentleman who was baptized has flowers and and gifts, this is also part of Japanese culture: gift giving.