Reijou Gakuen ~Rengoku no Gakusha~

Shuichi is a high school student. One day, he is kicked out of high school without advance notice. He doesn't know what's going on...? He gets mad and plans to take revenge on them. A few days later, he receives a video tape from someone unknown. "She's the ringleader." The video shows her having sex with someone. He immediately takes an action....