New female teacher Neinei arrives at a certain academy. She was a tennis champion in her student days, possessing remarkable skills. As she wished, she becomes the advisor for the tennis club, but standing in her way is a student named Mutou who holds more power than any teacher. One day, she is raped by Mutou. From that day on, the tennis club is controlled by Mutou, and female teacher Neinei begins her days of humiliation as a flesh slave to the sadistic students—
