"It's the rules. I'm confiscating this phone." Our homeroom teacher, Ms. Aoi, who also handles student guidance, was always serious and strict. Of course, she had a kind side, always praising me for my hard work in the student council as a model student. I never would have guessed she was drowning in such lewd acts... One day after school, I witnessed Ms. Aoi engaging in public exposure without any underwear. Once she noticed me, she dragged me into her obscene world...