Psycome

Kyousuke Kamiya is wrongfully convicted and sent to Purgatorium Rehabilitation Academy. There, he discovers that the female students are all murderers. He is also known as the "Dozen Demon," blamed for twelve deaths. When Renko Hikawa, a striking woman in a gas mask, approaches him, the line between danger and attraction blurs. Kyousuke must find a way to survive and complete his sentence.