It all started a few days ago, the days of indoor exposure with the strictest English teacher in school, Ms. Ayano. One afternoon after school, when I was warned about the dismissal time near the library stairs by Ms. Ayano, I couldn't hide my surprise at the fact that the usually serious Ms. Ayano wasn't wearing any panties. The next day, hoping to witness the same scene, I headed to the same staircase at the same time after school, only to find Ms. Ayano, unaware of my presence, lifting her skirt with a trance-like expression... Compared to the previous work featuring Ms. Hayama, this one shines with an even more serious and strict teacher persona. The mini-skirt and glasses suit her perfectly, highlighting her beautiful legs. The scene where she, with her hidden perverted exhibitionist side, goes up the stairs without panties, fully exposing herself, is undoubtedly the highlight of this work. The decision to limit her relationship to just one student, the class representative, is a clever setting to avoid the plot development where her hidden side is exposed, leading to a gangbang scenario.