It was only a few days ago that I started engaging in school-wide exhibitionism with Ayano-sensei, the strictest English teacher in school. One afternoon after school, I was given a warning about going home by Ayano-sensei on the stairs near the library, and I couldn't hide my surprise. The serious Ayano-sensei wasn't wearing any underwear. Thinking I would see the same thing the next day, I went to the same stairs at the same time after school. But Ayano-sensei didn't notice me, and with an ecstatic expression on her face, she was lifting her skirt...