The diligent teacher Anna was strict with her delinquent students. However, on the contrary, she resents the delinquent student... She doesn't know about that. When Anna-sensei is on the train, she is attacked by a molester and is left unable to speak out. But that was only the beginning of the tragedy. A delinquent boy who happened to ride with her was filming the whole story of the torture and rape as if it was a daily grudge. From the next day, she is threatened by her weakness and made into a toy for the students! !
