I'm a 47-year-old single, unremarkable math teacher. I used to take pride in my job as a teacher, but over the years, my heart has become tainted, and now just hearing the joyful laughter of promising students makes me want to vomit. But recently, I found one thing to look forward to. I slept with Mitsuki Nagisa, a student who's dating a sleazy guy; she looks like a total slut but was actually a virgin—what a perfect situation! Now she's completely trained as my sex toy.
