Fallen married slave teacher

Shiho, a passionate teacher with a strong sense of justice, witnesses bullying at school one day and rescues a student. However, contrary to Shiho's anger, the bullying by the delinquent group only continues to escalate. As Shiho continues to protect her student, whose mind and body are scarred by daily abuse, she begins to have feelings for him that are more than just his student... Also, as usual, Shiho rescues him from a group of delinquents and rushes into the bathroom, but after he leaves, she indulges in masturbation on the spot. Little did I know that the situation was being watched...