That JAV

Nana is a new teacher at a boys' school. She is a small-minded girl with a comic disorder. She was bullied severely in the past, and was impressed by her homeroom teacher who protected her during the bullying, so she decided to become a teacher. She tries to protect Yamada, who is bullied and physically punished by the soccer club, but is locked up in the club room. In order to protect Yamada, Nana becomes a slave to the delinquents, and is beaten to a pulp by them. Nana is subjected to a humiliating masturbation show, group Nakadashi, group Bukkake, a spectacular sexual intercourse hell, and a personality-destroying fuck. Nana's mind collapses after being raped even by Yamada.