Jokyoushi Rinkan no Kyoushitsu

Ishida Shuichi comes back to his hometown deep in the mountains as he transfers to Hiyama private school, a prestigious high school that only those of the elite with very high recommendations can enter. He came at the time of an annual school event that it's held for an entire week, the Great student council, in which the students decide the future of the school management. What are his real reasons to come back to Hiyama?