Class 2J is an International Education curriculum and approximately 90% of this class are girls.
Apart from the 9 standard classes at Sobu, Class 2-J is aimed at nurturing academically gifted students capable of fulfilling an active role in the international level. Students of this class mostly consist of those who return to Japan from overseas or have aspirations to study abroad. The academic standards of Class J are 2 to 3 times higher than the other classes.
This class is located at the farthest end of the school and there was a unique air about them that kept people from proactively approaching them. So, it is safe to assume that everyone of this class are from wealthy, well-connected families that have influential positions in the society.