JUQ-933 Only I, the class representative, know the secret side of the student guidance teacher, Sayuri-sensei. After school, I spend all my time exposing myself around the school with the most serious female teacher

Today, I heard a voice scolding a student in the hallway after school. This voice was Sayuri-sensei, the student guidance counselor. She was one of the most serious and strict teachers in our school, but as a class representative who was focused on studying, I secretly had a crush on her. One day, as I was climbing the stairs to go to a classroom, I heard Sayuri-sensei's voice from the floor above. I looked up to call out to her, but she wasn't wearing any pants. I was stunned by the fact that such a serious teacher would do this, and my crotch gradually became hard...