The students of Class 1-A had all arrived at the gymnasium. They orderly lined up in line.
The number of students in Class 1-A only totaled up to 30 pupils, this was the same for all the classes as well.
Previously, the number of students in a classroom would be 40, whereas now it varies between 24-40 students per class. This is because of the declining birth rate in Japan, which is a significant crisis.
There are many reasons for the declining birth rate in Japan, such as the workaholic nature, thus reducing their desire to have children.
Most women become housewives because their husbands are out working all day, of course, this also increases the percentage of adultery because they are not satisfied with their current lifestyles.
Most women refuse to marry unless it had already been arranged by their forefathers and parents. They are not ready to take care of the household chores and raise their children by themselves with no support.