"Rules are absolute. They exist to be followed." Kanna-sensei, our homeroom teacher in charge of student guidance, was always strict with everyone. That's why she was kind to me, who spent my days seriously as the class representative, and I was happy about that special feeling. I never imagined that the respectable Kanna-sensei would be so immersed in obscene acts... One day after school, I witnessed Kanna-sensei spending her time exposing herself without panties. Then, noticing me, Kanna-sensei invited me to join in those obscene acts...
