Prison School(2015)

Hachimitsu Private School is a prestigious all-girls boarding school outside of Tokyo, but with the start of the new school year, the school's policies are revised and boys are allowed into the school. On his first day at Hachimitsu School, Kiyoshi Fujino discovers that he is one of only 5 boys enrolled in the school. But this school is not the paradise that these 5 boys have in their minds...