Fan Casting Prison School (Live Action American Version).

The series takes place in a pretigious student institute that has recently been coeducational, so it has a student population thousand girls and only 5 boys (Kiyoshi Fujino, Shingo Wakamoto, Jouji Nezu, Takehito Morokuzu, and Reiji Andou). They believed that they were taking the opportunity of their lives by entering said school under such circumstances....but nothing is further from reality, since instead of being a teenage dream, school ends up being a nightmare for these boys.