The newly appointed female teacher serves as the advisor for the humiliation tennis club. (SSNI-351)

Newly appointed female teacher Yoshitaka Nene, a former tennis player who even reached the national tournament during her school days, is assigned as the tennis club's advisor. However, one day she is sexually assaulted by a student named Muto. From that day on, she is treated as a sex slave by her sadistic students, living a life of shame.